CostandPriceHVAC Repair
Massachusetts

HVAC Repair Cost in Boston, MA (2026)

Estimated HVAC-repair cost ranges for the Boston metro, localized from national base ranges using Boston labor-cost data. Every figure is an Estimated metro-level range. Reviewed July 2026. In Boston, HVAC repairs typically run $25–$15,100 (2026), depending on the appliance and fault.

Covers: Cambridge, Newton and nearby communities in the Boston metropolitan area. Enter any local ZIP in a problem page's calculator to confirm your localized range.

Local price index×1.16
Wage basisMetro technician wages
ReviewedJuly 2026
Repair cost calculator

$85–$870 in Boston, MA (localized) — gas furnace not heating / blowing cold air. Change appliance, problem, tier, or brand below.

Quality tier (adjusts parts)
Boston — Gas Furnace not heating / blowing cold air Estimated
Most common repairTypical totalDIY?
Hot-surface igniter replacement (installed) $175–$405 DIY possible
Flame sensor cleaning or replacement $85–$290 DIY possible
Gas valve replacement $350–$870 Pro recommended
Integrated furnace control (IFC) board replacement $350–$815 Pro recommended

Plus a typical service-call / diagnostic fee of $75–$150, often credited toward the repair.

Pick a quality tier for a class-typical estimate, or a specific brand to override it (brand adjusts the parts portion only). Enter a ZIP or Canadian postal code to localize to your metro's labor costs. Everything updates without a page reload; no data leaves your browser except the shard lookup.

What a diagnostic visit costs in Boston

ObservedFees published by 2 Boston-area repair companies · verified 2026-07-23

$49–$189published diagnostic / service-call fee

Compiled from fees these companies post publicly on their own websites — observed figures, not localized estimates. We don't accept payment for inclusion, and we don't name or rank providers.

Taxes & licensing in Massachusetts

Sales tax on the repair
Repair labor is generally not taxed here (parts still are). Appliance-repair LABOR is NOT subject to Massachusetts sales/use tax. (official tax source)
Who is licensed to do the work
Appliance repair in Massachusetts triggers different licensing depending on the appliance type; there is no single "appliance repair license." 1) REFRIGERANT WORK (federal EPA Section 608 baseline) — Any technician who "maintain[s], service[s], repair[s], or dispose[s] of equipment that could release refrigerants" (household refrigerators, freezers, window/room AC, heat pumps) must hold EPA Section 608 certification under 40 CFR Part 82 Subpart F (Clean Air Act). Certification types: Type I = small appliances (typical household units), Type II = high-pressure, Type III = low-pressure, Universal = all. Apprentices are exempt if continuously supervised by a certified technician. This is a mandatory federal floor that applies in every state including MA. Source: EPA (see licensing_url). 2) STATE REFRIGERATION LICENSE (sealed-system / larger equipment) — Massachusetts separately licenses refrigeration technicians and contractors through the Bureau of Pipefitters, Refrigeration Technicians and Sprinkler Fitters (Div. of Occupational Licensure / OPSI), governed by 528 CMR. The state Refrigeration Technician license requires ~1,000 hours of approved refrigeration coursework AND EPA Section 608 Universal certification as a prerequisite. This state license is aimed at refrigeration/HVAC-R systems; a person doing sealed-system appliance refrigerant work should hold both EPA 608 and, where the work falls within the licensed trade, the state refrigeration license. (mass.gov regulator pages: "Apply for a Refrigeration Technician License," 528 CMR — mass.gov currently blocks automated fetch, but the requirement is confirmed via the DOL/OPSI licensing pages.) 3) GAS APPLIANCES (state gas-fitting rules) — Gas-fitting work in MA may only be performed by a licensed plumber or licensed gas fitter: "permits to perform gas fitting work shall only be issued to licensed plumbers or licensed gas fitters" (248 CMR 3.05(1)(b)8; Board of State Examiners of Plumbers and Gas Fitters). IMPORTANT nuance for appliance servicers: the Board's policy on "Adjustment and Replacement of Gas Controls" (adopted 2014, under 248 CMR 3.05(1)(c)3) provides that NO permit is required to (a) adjust gas-appliance controls where the adjustment requires no change to the gas-supply connection/associated piping, or (b) simply disconnect and reconnect a gas appliance to alter/repair/replace gas controls located AFTER the appliance's main control valve. Work on the gas supply/piping side, however, requires a licensed gas fitter/plumber. 4) HOME IMPROVEMENT CONTRACTOR (HIC) registration — Governed by 201 CMR 18.00 / M.G.L. c. 142A. "Residential Contracting" is defined as "reconstruction, alteration, renovation, repair, modernization, conversion, improvement, removal or demolition or the construction of an addition" to a pre-existing owner-occupied 1-to-4-unit dwelling. Ordinary appliance repair generally is NOT residential home-improvement contracting, so HIC registration typically does not apply. Even where it might, the relevant DOLLAR THRESHOLDS are: registration is NOT required for a contractor "who works on one residential contracting undertaking ... where the aggregate contract price to the owner is less than $500" [201 CMR 18.01(6)(g)], nor for a part-time person earning under $5,000/12 months from such work [18.01(6)(h)]; separately, jobs of $1,000 or more require a written contract. Licensed tradespeople acting within their trade (e.g., plumbers) are exempt from HIC [18.01(6)(c)]. Bottom line: no generic appliance-repair license exists, but (i) EPA 608 is mandatory for any refrigerant-containing appliance, (ii) a MA refrigeration license (528 CMR, EPA 608 Universal prerequisite) governs sealed-system/HVAC-R work, (iii) gas-supply-side work on gas appliances requires a licensed gas fitter/plumber (mere control adjustment/reconnection is exempt), and (iv) HIC registration is generally inapplicable to appliance repair and carries a $500 aggregate exemption threshold. (official licensing source)

See the Massachusetts hub for the full local rules & taxes breakdown.

Most common repairs & local costs

Every problem we price, grouped by appliance — the most-searched problem in each group first; expand for the rest. All ranges are localized to Boston labor costs.

Furnace repair cost in Boston 11 problems priced

Furnace repairs in Boston typically run $25–$5,810 (2026).

Gas Furnace not heating / blowing cold air

Boston — Gas Furnace not heating / blowing cold air Estimated
Most common repairTypical totalDIY?
Hot-surface igniter replacement (installed) $175–$405 DIY possible
Flame sensor cleaning or replacement $85–$290 DIY possible
Gas valve replacement $350–$870 Pro recommended
Integrated furnace control (IFC) board replacement $350–$815 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

More gas furnace problems 10

Gas Furnace won't turn on / no power

Boston — Gas Furnace won't turn on / no power Estimated
Most common repairTypical totalDIY?
Blown control-board fuse replacement $85–$175 DIY possible
24V transformer replacement $145–$350 DIY possible
Thermostat wiring / C-wire fault repair $85–$230 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Gas Furnace short cycling (turns on and off)

Boston — Gas Furnace short cycling (turns on and off) Estimated
Most common repairTypical totalDIY?
Flame sensor cleaning $85–$230 DIY possible
Pressure switch replacement $175–$405 Pro recommended
High-limit switch replacement / airflow-restriction fix $85–$350 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Gas Furnace igniter (hot surface ignitor) replacement

Boston — Gas Furnace igniter (hot surface ignitor) replacement Estimated
Most common repairTypical totalDIY?
Hot-surface igniter — professional installed replacement $175–$350 DIY possible
Hot-surface igniter — DIY part-only replacement $25–$60 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Gas Furnace flame sensor cleaning / replacement

Boston — Gas Furnace flame sensor cleaning / replacement Estimated
Most common repairTypical totalDIY?
Flame sensor cleaning (no replacement) $85–$230 DIY possible
Flame sensor replacement $105–$290 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Gas Furnace blower motor replacement

Boston — Gas Furnace blower motor replacement Estimated
Most common repairTypical totalDIY?
PSC blower motor replacement (single-speed) $405–$930 Pro recommended
ECM / variable-speed blower motor replacement (+ module) $695–$1,740 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Gas Furnace gas valve replacement

Boston — Gas Furnace gas valve replacement Estimated
Most common repairTypical totalDIY?
Gas valve replacement (standard single-stage) $350–$755 Pro recommended
Gas valve replacement (multi-stage / modulating, high-end) $525–$930 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Gas Furnace control board replacement

Boston — Gas Furnace control board replacement Estimated
Most common repairTypical totalDIY?
Universal control board replacement $290–$525 Pro recommended
OEM proprietary control board replacement $465–$815 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Gas Furnace cracked heat exchanger replacement

Boston — Gas Furnace cracked heat exchanger replacement Estimated
Most common repairTypical totalDIY?
Cracked heat exchanger replacement (standard job) $1,160–$3,485 Pro recommended
Heat exchanger replacement (hard-access / high-labor case) $3,485–$5,810 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Gas Furnace pilot light / thermocouple won't stay lit

Boston — Gas Furnace pilot light / thermocouple won't stay lit Estimated
Most common repairTypical totalDIY?
Thermocouple cleaning/replacement $175–$350 DIY possible
Pilot assembly clean/replace (standing-pilot models) $175–$405 Pro recommended
Gas valve replacement (standing-pilot, root cause of last resort) $350–$815 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Gas Furnace noisy or loud (banging, rumbling, squealing)

Boston — Gas Furnace noisy or loud (banging, rumbling, squealing) Estimated
Most common repairTypical totalDIY?
Inducer motor replacement $465–$1,280 Pro recommended
Blower motor/wheel service (bearings, cleaning, balancing) $175–$1,105 Pro recommended
Blower belt replacement (older belt-drive furnaces) $115–$350 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Central Air Conditioning repair cost in Boston 10 problems priced

Central Air Conditioning repairs in Boston typically run $85–$3,250 (2026).

Central Air Conditioning not cooling / blowing warm air

Boston — Central Air Conditioning not cooling / blowing warm air Estimated
Most common repairTypical totalDIY?
Dual-run (run/start) capacitor replacement $230–$525 DIY possible
Refrigerant leak repair + recharge (R-410A) $350–$1,045 Pro recommended
Contactor / relay replacement $230–$525 DIY possible
Condenser fan motor replacement $350–$1,045 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

More central air conditioning problems 9

Central Air Conditioning won't turn on / no power

Boston — Central Air Conditioning won't turn on / no power Estimated
Most common repairTypical totalDIY?
Dual-run capacitor replacement $230–$525 DIY possible
Contactor replacement $230–$525 DIY possible
Low-voltage transformer / control-fuse replacement $175–$405 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Central Air Conditioning capacitor replacement

Boston — Central Air Conditioning capacitor replacement Estimated
Most common repairTypical totalDIY?
Dual-run (run/start) capacitor replacement $230–$525 DIY possible
Capacitor replacement + hard-start kit (weak-compressor start assist) $405–$755 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Central Air Conditioning compressor replacement

Boston — Central Air Conditioning compressor replacement Estimated
Most common repairTypical totalDIY?
Central air / home AC compressor replacement (installed) $2,090–$3,250 Pro recommended
Hard-start kit install (cheaper stopgap, not a true compressor fix) $175–$350 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Central Air Conditioning refrigerant leak repair / recharge

Boston — Central Air Conditioning refrigerant leak repair / recharge Estimated
Most common repairTypical totalDIY?
Leak detection + braze/patch repair (line or coil joint) $465–$1,395 Pro recommended
Refrigerant recharge only (R-410A top-off, leak already sealed or minor) $350–$1,045 Pro recommended
Evaporator / condenser coil replacement (leak is in the coil itself) $1,395–$3,020 Pro recommended

Base: 3 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Central Air Conditioning frozen evaporator coil

Boston — Central Air Conditioning frozen evaporator coil Estimated
Most common repairTypical totalDIY?
Airflow fix (filter change / blower/duct restriction cleared) $115–$350 DIY possible
Refrigerant recharge (low charge causing the freeze) $350–$1,045 Pro recommended
Coil cleaning / minor coil repair (frost/ice damage to fins) $465–$1,160 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Central Air Conditioning clogged condensate drain / leaking water

Boston — Central Air Conditioning clogged condensate drain / leaking water Estimated
Most common repairTypical totalDIY?
Condensate drain line clear / flush $85–$290 DIY possible
Condensate pump replacement $290–$510 Pro recommended
Float / safety-switch replacement $115–$255 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Central Air Conditioning contactor / relay replacement

Boston — Central Air Conditioning contactor / relay replacement Estimated
Most common repairTypical totalDIY?
Contactor / relay replacement $230–$525 DIY possible
Contactor + capacitor combo replacement $350–$640 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Central Air Conditioning condenser fan motor replacement

Boston — Central Air Conditioning condenser fan motor replacement Estimated
Most common repairTypical totalDIY?
Condenser fan motor replacement (standard PSC motor) $350–$815 Pro recommended
Condenser fan motor replacement (ECM/high-efficiency motor) $815–$1,395 Pro recommended
Fan blade replacement only (motor healthy, blade bent/cracked) $115–$255 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Central Air Conditioning short cycling (turns on and off)

Boston — Central Air Conditioning short cycling (turns on and off) Estimated
Most common repairTypical totalDIY?
Dual-run capacitor replacement $230–$525 DIY possible
Refrigerant recharge (low charge triggers low-pressure cutoff cycling) $350–$1,045 Pro recommended
Thermostat recalibration / relocation or replacement $145–$405 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Heat Pump repair cost in Boston 10 problems priced

Heat Pump repairs in Boston typically run $115–$5,225 (2026).

Heat Pump not heating

Boston — Heat Pump not heating Estimated
Most common repairTypical totalDIY?
Refrigerant charge check + recharge (R-410A) $405–$1,160 Pro recommended
Reversing valve replacement $465–$1,740 Pro recommended
Defrost control board replacement $230–$755 Pro recommended
Auxiliary/electric heat strip replacement $350–$1,045 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

More heat pump problems 9

Heat Pump not cooling

Boston — Heat Pump not cooling Estimated
Most common repairTypical totalDIY?
Dual-run capacitor replacement $230–$525 DIY possible
Refrigerant recharge (R-410A) $405–$1,160 Pro recommended
Contactor replacement $230–$525 DIY possible
Reversing valve replacement $465–$1,740 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Heat Pump stuck in defrost / frozen outdoor unit

Boston — Heat Pump stuck in defrost / frozen outdoor unit Estimated
Most common repairTypical totalDIY?
Defrost control board replacement $230–$755 Pro recommended
Defrost sensor / outdoor coil thermostat replacement $175–$465 Pro recommended
Reversing valve replacement $465–$1,740 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Heat Pump reversing valve replacement

Boston — Heat Pump reversing valve replacement Estimated
Most common repairTypical totalDIY?
Reversing valve replacement (full valve body, refrigerant recovery + braze + recharge) $465–$1,740 Pro recommended
Reversing valve solenoid coil replacement (electrical coil only, valve body reused) $175–$465 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Heat Pump defrost control board replacement

Boston — Heat Pump defrost control board replacement Estimated
Most common repairTypical totalDIY?
Defrost control board replacement $230–$755 Pro recommended

Base: 1 published national repair-cost guide (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Heat Pump capacitor replacement

Boston — Heat Pump capacitor replacement Estimated
Most common repairTypical totalDIY?
Dual-run capacitor replacement $230–$525 DIY possible
Capacitor replacement + hard-start kit (aging compressor start assist) $405–$755 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Heat Pump refrigerant leak repair / recharge

Boston — Heat Pump refrigerant leak repair / recharge Estimated
Most common repairTypical totalDIY?
Minor leak repair + partial recharge $230–$580 Pro recommended
Moderate leak repair (extensive leak detection + repair + full refill) $580–$1,160 Pro recommended
Severe leak repair (coil-area leak, full evacuation + recharge) $1,160–$1,740 Pro recommended

Base: 3 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Heat Pump compressor replacement

Boston — Heat Pump compressor replacement Estimated
Most common repairTypical totalDIY?
Heat pump compressor replacement (installed) $2,090–$5,225 Pro recommended
Hard-start kit install (cheaper stopgap, not a true compressor fix) $175–$350 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Heat Pump outdoor fan motor replacement

Boston — Heat Pump outdoor fan motor replacement Estimated
Most common repairTypical totalDIY?
Outdoor fan motor replacement (standard PSC) $290–$870 Pro recommended
Outdoor fan motor replacement (ECM/DC variable-speed) $695–$1,395 Pro recommended
Fan blade replacement only (motor healthy, blade damaged) $115–$255 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Heat Pump short cycling (turns on and off)

Boston — Heat Pump short cycling (turns on and off) Estimated
Most common repairTypical totalDIY?
Service call with airflow restoration — filter, return grille and indoor coil cleared on a system that is overheating or icing $145–$465 Pro recommended
Refrigerant leak search and recharge where low charge is tripping the safety control $350–$1,625 Pro recommended
Failing start capacitor, contactor or pressure switch replaced; thermostat recalibrated or moved off a bad wall $165–$580 Pro recommended

Base: 3 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Ductless Mini-Split repair cost in Boston 10 problems priced

Ductless Mini-Split repairs in Boston typically run $95–$3,250 (2026).

Ductless Mini-Split not cooling

Boston — Ductless Mini-Split not cooling Estimated
Most common repairTypical totalDIY?
Refrigerant leak search + repair + recharge $350–$1,160 Pro recommended
Indoor or outdoor control board (PCB) replacement $175–$1,280 Pro recommended
Compressor replacement (outdoor unit) $930–$3,250 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

More ductless mini-split problems 9

Ductless Mini-Split not heating

Boston — Ductless Mini-Split not heating Estimated
Most common repairTypical totalDIY?
Reversing valve replacement $350–$1,395 Pro recommended
Refrigerant leak search + repair + recharge $350–$1,160 Pro recommended
Indoor or outdoor control board (PCB) replacement $175–$1,280 Pro recommended
Thermistor / temperature sensor replacement $115–$350 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Ductless Mini-Split refrigerant leak repair / recharge

Boston — Ductless Mini-Split refrigerant leak repair / recharge Estimated
Most common repairTypical totalDIY?
Refrigerant recharge only (top-off, no repairable leak point found) $115–$405 Pro recommended
Leak search + flare/line-set repair + recharge $350–$1,160 Pro recommended
Evaporator or condenser coil replacement (non-repairable leak) $2,090–$2,905 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Ductless Mini-Split compressor replacement

Boston — Ductless Mini-Split compressor replacement Estimated
Most common repairTypical totalDIY?
Compressor replacement (outdoor unit) $930–$3,250 Pro recommended

Base: 1 published national repair-cost guide (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Ductless Mini-Split indoor blower / fan motor replacement

Boston — Ductless Mini-Split indoor blower / fan motor replacement Estimated
Most common repairTypical totalDIY?
Indoor cross-flow blower/fan motor replacement $315–$695 Pro recommended
Cross-flow fan bearing / fan-wheel replacement (cheaper fix) $95–$290 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Ductless Mini-Split indoor head leaking water

Boston — Ductless Mini-Split indoor head leaking water Estimated
Most common repairTypical totalDIY?
Condensate drain line clear / clean $115–$580 DIY possible
Condensate pump replacement $175–$465 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Ductless Mini-Split error code / flashing light fault

Boston — Ductless Mini-Split error code / flashing light fault Estimated
Most common repairTypical totalDIY?
Thermistor / sensor replacement $115–$350 Pro recommended
Indoor or outdoor control board (PCB) replacement $175–$1,280 Pro recommended
Communication (signal) wire repair $175–$525 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Ductless Mini-Split control board / pcb replacement

Boston — Ductless Mini-Split control board / pcb replacement Estimated
Most common repairTypical totalDIY?
Outdoor unit main control board (PCB) replacement $175–$1,280 Pro recommended
Indoor unit interface/control board replacement (lower-cost tier) $230–$580 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Ductless Mini-Split outdoor unit not running

Boston — Ductless Mini-Split outdoor unit not running Estimated
Most common repairTypical totalDIY?
Run/start capacitor replacement $115–$350 Pro recommended
Outdoor unit control board (PCB) replacement $175–$1,280 Pro recommended
Compressor replacement (outdoor unit) $930–$3,250 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Ductless Mini-Split musty or mouldy smell from the indoor unit

Boston — Ductless Mini-Split musty or mouldy smell from the indoor unit Estimated
Most common repairTypical totalDIY?
Full chemical deep clean of the indoor head — coil, blower wheel and drain pan, casing stripped and bagged $255–$640 Pro recommended
Drain line flush and anti-microbial treatment of the condensate path $100–$300 Pro recommended
Blower wheel pulled and cleaned where biofilm has hardened on the fins, additional heads billed each $350–$815 Pro recommended

Base: 3 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Boiler repair cost in Boston 10 problems priced

Boiler repairs in Boston typically run $115–$3,485 (2026).

Boiler no heat / not firing up

Boston — Boiler no heat / not firing up Estimated
Most common repairTypical totalDIY?
Circulator pump replacement $350–$1,280 Pro recommended
Ignition electrode / ignitor replacement $115–$465 DIY possible
Gas valve replacement $230–$1,280 Pro recommended
Aquastat / control replacement $175–$580 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

More boiler problems 9

Boiler no hot water

Boston — Boiler no hot water Estimated
Most common repairTypical totalDIY?
Circulator pump replacement $350–$1,280 Pro recommended
Domestic hot water (plate/secondary) heat exchanger replacement $580–$1,160 Pro recommended

Base: 1 published national repair-cost guide (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Boiler losing pressure

Boston — Boiler losing pressure Estimated
Most common repairTypical totalDIY?
Expansion tank / vessel replacement + repressurize $230–$930 Pro recommended
Pressure relief valve replacement $175–$580 Pro recommended
Pipe / fitting leak repair (slow pressure loss) $205–$930 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Boiler leaking water

Boston — Boiler leaking water Estimated
Most common repairTypical totalDIY?
Pipe / fitting / pump-seal leak repair $205–$930 Pro recommended
Pressure relief valve replacement $175–$580 Pro recommended
Heat exchanger replacement (cracked/corroded — high-ticket) $1,160–$3,485 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Boiler kettling (banging / rumbling noise)

Boston — Boiler kettling (banging / rumbling noise) Estimated
Most common repairTypical totalDIY?
Chemical / power flush (descale + sludge removal) $465–$1,395 Pro recommended
Pressure relief valve replacement (post-overheat check) $175–$580 Pro recommended

Base: 1 published national repair-cost guide (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Boiler pilot light won't stay lit

Boston — Boiler pilot light won't stay lit Estimated
Most common repairTypical totalDIY?
Thermocouple replacement $115–$465 DIY possible
Pilot assembly cleaning / adjustment (no parts) $115–$350 DIY possible

Base: 1 published national repair-cost guide (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Boiler keeps switching off (short cycling)

Boston — Boiler keeps switching off (short cycling) Estimated
Most common repairTypical totalDIY?
Expansion vessel repressurize / replace $230–$930 Pro recommended
Short-cycling diagnostic & control repair (limit control / pressure switch / wiring) $230–$1,280 Pro recommended

Base: 1 published national repair-cost guide (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Boiler circulator pump replacement

Boston — Boiler circulator pump replacement Estimated
Most common repairTypical totalDIY?
Circulator / circulation pump replacement $350–$1,280 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Boiler expansion vessel / tank replacement

Boston — Boiler expansion vessel / tank replacement Estimated
Most common repairTypical totalDIY?
Expansion vessel / tank replacement + repressurize $230–$930 Pro recommended
Expansion tank swap only (accessible tank, simpler job) $175–$465 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Boiler ignition fault / lockout

Boston — Boiler ignition fault / lockout Estimated
Most common repairTypical totalDIY?
Ignition electrode / ignitor replacement $115–$465 DIY possible
Ignition control module (lockout board) replacement $350–$1,510 Pro recommended
Gas valve replacement $230–$1,280 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Thermostat & Controls repair cost in Boston 10 problems priced

Thermostat & Controls repairs in Boston typically run $70–$1,045 (2026).

Thermostat & Controls smart thermostat installation

Boston — Thermostat & Controls smart thermostat installation Estimated
Most common repairTypical totalDIY?
Smart thermostat installation — existing compatible wiring (no new C-wire needed) $175–$465 DIY possible
Smart thermostat installation with new C-wire run/adapter (no existing C-wire) $350–$815 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

More thermostat & controls problems 9

Thermostat & Controls blank screen / won't power on

Boston — Thermostat & Controls blank screen / won't power on Estimated
Most common repairTypical totalDIY?
Blown low-voltage fuse / tripped breaker / transformer reset or replace $85–$255 DIY possible
Loose or faulty C-wire connection repair $100–$290 Pro recommended
Thermostat unit replacement (internal board dead) $115–$370 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Thermostat & Controls won't reach set temperature

Boston — Thermostat & Controls won't reach set temperature Estimated
Most common repairTypical totalDIY?
Wiring fault / loose low-voltage connection repair $100–$265 Pro recommended
Sensor recalibration / thermostat relocation (labor only) $85–$210 DIY possible
Thermostat replacement (failed internal temperature sensor) $115–$370 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Thermostat & Controls thermostat wiring / c-wire repair

Boston — Thermostat & Controls thermostat wiring / c-wire repair Estimated
Most common repairTypical totalDIY?
Repair/reconnect existing thermostat wiring (loose or damaged wire) $70–$230 DIY possible
Add new C-wire (fish wire through wall from HVAC equipment to thermostat) $140–$440 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Thermostat & Controls won't connect to wi-fi

Boston — Thermostat & Controls won't connect to wi-fi Estimated
Most common repairTypical totalDIY?
Wi-Fi/network troubleshooting service visit (router or app-pairing reconfiguration) $85–$205 DIY possible
Smart thermostat replacement (failed Wi-Fi radio/board) $175–$465 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Thermostat & Controls clicks but system won't respond

Boston — Thermostat & Controls clicks but system won't respond Estimated
Most common repairTypical totalDIY?
Relay / transformer replacement $100–$265 Pro recommended
Wiring fault repair (shorted or miswired low-voltage run) $80–$230 Pro recommended
Thermostat replacement (internal relay contacts failed) $130–$370 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Thermostat & Controls wrong temperature reading / miscalibrated

Boston — Thermostat & Controls wrong temperature reading / miscalibrated Estimated
Most common repairTypical totalDIY?
Recalibrate / relocate thermostat (labor only) $75–$185 DIY possible
Thermostat replacement (drifted/failed internal sensor) $115–$350 DIY possible

Base: 1 published national repair-cost guide (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Thermostat & Controls zone control board / damper repair

Boston — Thermostat & Controls zone control board / damper repair Estimated
Most common repairTypical totalDIY?
Zone damper actuator/motor replacement (single zone) $175–$580 Pro recommended
Zone control panel/board replacement $290–$1,045 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Thermostat & Controls heating or cooling won't shut off

Boston — Thermostat & Controls heating or cooling won't shut off Estimated
Most common repairTypical totalDIY?
Diagnosis plus low-voltage thermostat wiring repair — shorted, pinched or chafed stat cable, or a stuck W call $145–$525 Pro recommended
Fan limit switch replacement on a furnace whose blower will not stop $165–$560 Pro recommended
Welded contactor, fan-centre relay or failed control board replaced $175–$1,045 Pro recommended

Base: 3 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Thermostat & Controls moving a thermostat to a different wall

Boston — Thermostat & Controls moving a thermostat to a different wall Estimated
Most common repairTypical totalDIY?
Relocate the thermostat to a new wall with a fresh low-voltage cable run and mounting box $230–$650 Pro recommended
Relocate onto wiring that already reaches a nearby wall, plus making good the old opening $95–$370 Pro recommended
Wireless / RF room sensor conversion where a cable run is impractical $175–$695 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Air Handler repair cost in Boston 10 problems priced

Air Handler repairs in Boston typically run $70–$3,715 (2026).

Air Handler blower not running

Boston — Air Handler blower not running Estimated
Most common repairTypical totalDIY?
Capacitor replacement $130–$405 DIY possible
Blower motor replacement (seized/burned-out motor) $465–$930 Pro recommended
Control board / fan relay replacement $465–$695 Pro recommended

Base: 3 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

More air handler problems 9

Air Handler blower motor replacement

Boston — Air Handler blower motor replacement Estimated
Most common repairTypical totalDIY?
PSC (single-speed) blower motor replacement $465–$930 Pro recommended
ECM / variable-speed blower motor + module replacement $930–$1,740 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Air Handler weak airflow

Boston — Air Handler weak airflow Estimated
Most common repairTypical totalDIY?
Blower wheel cleaning (dust/debris buildup restricting airflow) $210–$540 Pro recommended
Blower wheel replacement (cracked/unbalanced wheel) $115–$465 Pro recommended
Capacitor replacement (undervolted motor spins slower than rated) $130–$405 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Air Handler leaking water (drain pan / coil)

Boston — Air Handler leaking water (drain pan / coil) Estimated
Most common repairTypical totalDIY?
Condensate drain line clear/flush $85–$290 DIY possible
Condensate pump replacement $145–$325 DIY possible
Drain pan replacement (rusted-through/cracked primary pan) $695–$1,395 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Air Handler frozen evaporator coil

Boston — Air Handler frozen evaporator coil Estimated
Most common repairTypical totalDIY?
Airflow-restriction fix (filter/blower) + thaw-out service call $115–$350 DIY possible
Refrigerant leak locate-and-repair + recharge $230–$580 Pro recommended
Evaporator coil cleaning/repair (physically iced-over or fouled coil) $175–$525 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Air Handler noisy or loud (rattling / humming)

Boston — Air Handler noisy or loud (rattling / humming) Estimated
Most common repairTypical totalDIY?
Blower motor replacement (worn bearings — grinding/squealing) $405–$870 Pro recommended
Blower wheel cleaning/rebalancing (rattling from dust or a bent fin) $175–$465 Pro recommended
Mounting hardware / vibration isolator repair $85–$230 DIY possible

Base: 1 published national repair-cost guide (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Air Handler electric heat strip / auxiliary heat replacement

Boston — Air Handler electric heat strip / auxiliary heat replacement Estimated
Most common repairTypical totalDIY?
Heat sequencer relay replacement $175–$465 Pro recommended
Heat strip element replacement $290–$755 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Air Handler control board replacement

Boston — Air Handler control board replacement Estimated
Most common repairTypical totalDIY?
Standard air-handler control board replacement $465–$695 Pro recommended
Advanced/variable-speed control board replacement $580–$1,045 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Air Handler evaporator coil replacement

Boston — Air Handler evaporator coil replacement Estimated
Most common repairTypical totalDIY?
Evaporator coil replacement with refrigerant recovery, braze-in and recharge $1,045–$3,485 Pro recommended
Cased coil swap with a new drain pan and re-made line-set connections $1,280–$3,715 Pro recommended
Warranty coil replacement — manufacturer covers the part, homeowner is billed labour and refrigerant $405–$1,280 Pro recommended

Base: 3 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Air Handler musty smell from the vents

Boston — Air Handler musty smell from the vents Estimated
Most common repairTypical totalDIY?
In-place chemical evaporator coil clean plus drain pan treatment and line flush $115–$465 Pro recommended
Pull-and-clean where the coil is sealed in — sheet metal cut open, blower wheel pulled and washed $440–$815 Pro recommended
Anti-microbial treatment and condensate-pan tablet follow-up to stop the smell returning $70–$290 Pro recommended

Base: 3 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Ductwork & Vents repair cost in Boston 10 problems priced

Ductwork & Vents repairs in Boston typically run $30–$8,015 (2026).

Ductwork & Vents leaky duct sealing / repair

Boston — Ductwork & Vents leaky duct sealing / repair Estimated
Most common repairTypical totalDIY?
Manual mastic/foil-tape duct sealing (accessible leak points) $580–$1,740 DIY possible
Aeroseal aerosol duct sealing (whole-system, reaches hard-to-access leaks) $1,740–$8,015 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

More ductwork & vents problems 9

Ductwork & Vents ductwork replacement

Boston — Ductwork & Vents ductwork replacement Estimated
Most common repairTypical totalDIY?
Partial-run ductwork replacement (single run or section) $465–$1,280 Pro recommended
Whole-system ductwork replacement $1,625–$6,505 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Ductwork & Vents uneven airflow between rooms (balancing)

Boston — Ductwork & Vents uneven airflow between rooms (balancing) Estimated
Most common repairTypical totalDIY?
Professional duct/damper air balancing $465–$2,325 Pro recommended
Add a return-air duct (new run to a starved room) $580–$1,395 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Ductwork & Vents disconnected / collapsed duct repair

Boston — Ductwork & Vents disconnected / collapsed duct repair Estimated
Most common repairTypical totalDIY?
Reconnect and re-support disconnected/collapsed duct section $175–$1,395 Pro recommended
Replace damaged duct section (reconnect insufficient) $580–$2,905 Pro recommended

Base: 1 published national repair-cost guide (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Ductwork & Vents duct damper repair

Boston — Ductwork & Vents duct damper repair Estimated
Most common repairTypical totalDIY?
Motorized damper actuator replacement $175–$755 Pro recommended
Manual damper blade/motor replacement (non-zoned duct damper) $230–$525 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Ductwork & Vents vent / register replacement

Boston — Ductwork & Vents vent / register replacement Estimated
Most common repairTypical totalDIY?
Vent/register replacement (standard supply or return grille) $115–$350 DIY possible
Register boot repair (duct-to-floor/wall connector) $115–$405 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Ductwork & Vents duct insulation replacement

Boston — Ductwork & Vents duct insulation replacement Estimated
Most common repairTypical totalDIY?
Re-wrap exposed ductwork with fiberglass duct insulation $1,160–$3,135 Pro recommended
Insulated flex-duct section replacement (swap a damaged run for insulated flex) $580–$1,740 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Ductwork & Vents duct cleaning

Boston — Ductwork & Vents duct cleaning Estimated
Most common repairTypical totalDIY?
Whole-home professional duct cleaning (full-system 2-person crew service) $525–$1,160 Pro recommended
Per-vent or per-square-foot priced cleaning (lighter-touch service) $210–$580 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Ductwork & Vents adding a vent or duct run to a room

Boston — Ductwork & Vents adding a vent or duct run to a room Estimated
Most common repairTypical totalDIY?
New supply branch run cut into an existing trunk, with boot and register $350–$1,045 Pro recommended
Add a return air vent or return duct where the system is return-starved $175–$1,045 Pro recommended
Add or swap the supply register only, where a branch already reaches the room $30–$255 DIY possible

Base: 3 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Ductwork & Vents noisy ducts (banging, popping, whistling)

Boston — Ductwork & Vents noisy ducts (banging, popping, whistling) Estimated
Most common repairTypical totalDIY?
Duct stiffening, bracing and mastic sealing at the trunk to stop the oil-canning bang on start-up $115–$580 DIY possible
Static-pressure correction: open up or resize a restricted return, reset dampers and rebalance $175–$1,045 Pro recommended
Refit or replace rattling registers and grilles, re-hang loose flex-duct, fit a backdraft damper $60–$405 DIY possible

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Oil Furnace repair cost in Boston 10 problems priced

Oil Furnace repairs in Boston typically run $105–$15,100 (2026).

Oil Furnace won't start / won't fire

Boston — Oil Furnace won't start / won't fire Estimated
Most common repairTypical totalDIY?
Cad-cell primary control replacement (lockout/no-start fix) $175–$370 Pro recommended
Nozzle & oil filter replacement (fuel-delivery no-start cause) $115–$300 Pro recommended
Ignition electrodes / transformer replacement $115–$350 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

More oil furnace problems 9

Oil Furnace not heating / no heat

Boston — Oil Furnace not heating / no heat Estimated
Most common repairTypical totalDIY?
Nozzle & oil filter replacement (routine fuel-delivery fix) $115–$300 Pro recommended
Ignition electrodes replacement $115–$350 Pro recommended
Fuel-oil pump replacement $350–$815 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Oil Furnace nozzle / oil filter replacement (tune-up)

Boston — Oil Furnace nozzle / oil filter replacement (tune-up) Estimated
Most common repairTypical totalDIY?
Standard annual nozzle + oil filter service $115–$230 Pro recommended
Comprehensive tune-up + nozzle/filter (full cleaning, combustion test) $230–$405 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Oil Furnace ignition electrode / transformer replacement

Boston — Oil Furnace ignition electrode / transformer replacement Estimated
Most common repairTypical totalDIY?
Ignition electrode pair replacement $115–$290 Pro recommended
Ignition transformer replacement $115–$405 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Oil Furnace oil burner motor replacement

Boston — Oil Furnace oil burner motor replacement Estimated
Most common repairTypical totalDIY?
Oil burner motor replacement (1/7 HP PSC, standard residential) $260–$580 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Oil Furnace cad cell / primary control replacement

Boston — Oil Furnace cad cell / primary control replacement Estimated
Most common repairTypical totalDIY?
Cad-cell (flame-sensor eye) replacement only $105–$255 Pro recommended
Full primary control (cad-cell relay) module replacement $175–$405 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Oil Furnace puffback / soot cleanup

Boston — Oil Furnace puffback / soot cleanup Estimated
Most common repairTypical totalDIY?
Burner tune + combustion-chamber soot cleaning (root-cause HVAC fix) $175–$525 Pro recommended
Professional soot/smoke damage cleanup (separate restoration service, NOT an HVAC repair) $5,225–$15,100 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Oil Furnace fuel oil pump replacement

Boston — Oil Furnace fuel oil pump replacement Estimated
Most common repairTypical totalDIY?
Single-stage fuel-oil pump replacement $320–$525 Pro recommended
Two-stage fuel-oil pump replacement $525–$755 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Oil Furnace blower motor replacement

Boston — Oil Furnace blower motor replacement Estimated
Most common repairTypical totalDIY?
PSC blower motor replacement (single-speed) $350–$870 Pro recommended
ECM / variable-speed blower motor replacement $695–$1,625 Pro recommended

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

Oil Furnace cracked heat exchanger / combustion chamber

Boston — Oil Furnace cracked heat exchanger / combustion chamber Estimated
Most common repairTypical totalDIY?
Heat exchanger replacement on an oil-fired warm-air furnace, where the part is still available or covered by a parts warranty $1,160–$4,645 Pro recommended
Combustion chamber / firebox liner replacement with a post-repair combustion analysis $290–$1,045 Pro recommended
Condemn-and-quote: furnace red-tagged and shut off, replacement oil furnace quoted instead of the repair $4,645–$9,290 Pro recommended

Base: 5 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · Localized via BLS OEWS May 2025 (metro_soc) + BEA RPP 2024 · Reviewed July 2026 · Estimated

How we price this for Boston

We take each national base range and multiply it by Boston's local index of 1.16:

local range = national base × 1.16

The index blends the metro's wage relativity (Boston metro wages for appliance technicians (BLS OEWS occupation 49-9031)) with the BEA Regional Price Parity for Boston, held to a sane band. Parts ship at national prices, so only the labor and overhead share moves with the metro. These localized estimates are cross-checked against 2 locally published service fees in the observed stat above — figures we show verbatim, never run through the index. The full method and source vintages are on the methodology page.

Nearby metros

All HVAC repair problems (national)

Return to the Massachusetts hub or the U.S. HVAC repair guide.

Reviewed by a Red Seal–certified appliance technician who also holds a Technical Safety BC gas ticket (Gas-C) and an ODS/halocarbon refrigerant ticket (CFC/HCFC/HFC).