District of Columbia

HVAC Repair Cost in Washington, DC (2026)

Estimated HVAC-repair cost ranges for the Washington metro, localized from national base ranges using Washington labor-cost data. Every figure is an Estimated metro-level range. Reviewed July 2026. In Washington, HVAC repairs typically run $20–$14,310 (2026), depending on the appliance and fault.

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

Local price index×1.10
Wage basisMetro technician wages
ReviewedJuly 2026
Repair cost calculator

$85–$825 in Washington, DC (localized) — gas furnace not heating / blowing cold air. Change appliance, problem, tier, or brand below.

Quality tier (adjusts parts)
Washington — Gas Furnace not heating / blowing cold air Estimated
Most common repairTypical totalDIY?
Hot-surface igniter replacement (installed) $165–$385 DIY possible
Flame sensor cleaning or replacement $85–$275 DIY possible
Gas valve replacement $330–$825 Pro recommended
Integrated furnace control (IFC) board replacement $330–$770 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 Washington

ObservedFees published by 2 Washington-area repair companies · verified 2026-07-24

$95–$115published 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 District of Columbia

Sales tax on the repair
Repair labor is taxable here. Appliance-repair LABOR is subject to DC sales tax at the general 6% rate. (official tax source)
Who is licensed to do the work
Three layers apply to appliance repair in the District of Columbia. (official licensing source)

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 Washington labor costs.

Furnace repair cost in Washington 11 problems priced

Furnace repairs in Washington typically run $20–$5,505 (2026).

Gas Furnace not heating / blowing cold air

Washington — Gas Furnace not heating / blowing cold air Estimated
Most common repairTypical totalDIY?
Hot-surface igniter replacement (installed) $165–$385 DIY possible
Flame sensor cleaning or replacement $85–$275 DIY possible
Gas valve replacement $330–$825 Pro recommended
Integrated furnace control (IFC) board replacement $330–$770 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

Washington — Gas Furnace won't turn on / no power Estimated
Most common repairTypical totalDIY?
Blown control-board fuse replacement $85–$165 DIY possible
24V transformer replacement $140–$330 DIY possible
Thermostat wiring / C-wire fault repair $85–$220 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)

Washington — Gas Furnace short cycling (turns on and off) Estimated
Most common repairTypical totalDIY?
Flame sensor cleaning $85–$220 DIY possible
Pressure switch replacement $165–$385 Pro recommended
High-limit switch replacement / airflow-restriction fix $85–$330 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

Washington — Gas Furnace igniter (hot surface ignitor) replacement Estimated
Most common repairTypical totalDIY?
Hot-surface igniter — professional installed replacement $165–$330 DIY possible
Hot-surface igniter — DIY part-only replacement $20–$55 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

Washington — Gas Furnace flame sensor cleaning / replacement Estimated
Most common repairTypical totalDIY?
Flame sensor cleaning (no replacement) $85–$220 DIY possible
Flame sensor replacement $100–$275 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

Washington — Gas Furnace blower motor replacement Estimated
Most common repairTypical totalDIY?
PSC blower motor replacement (single-speed) $385–$880 Pro recommended
ECM / variable-speed blower motor replacement (+ module) $660–$1,650 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

Washington — Gas Furnace gas valve replacement Estimated
Most common repairTypical totalDIY?
Gas valve replacement (standard single-stage) $330–$715 Pro recommended
Gas valve replacement (multi-stage / modulating, high-end) $495–$880 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

Washington — Gas Furnace control board replacement Estimated
Most common repairTypical totalDIY?
Universal control board replacement $275–$495 Pro recommended
OEM proprietary control board replacement $440–$770 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

Washington — Gas Furnace cracked heat exchanger replacement Estimated
Most common repairTypical totalDIY?
Cracked heat exchanger replacement (standard job) $1,100–$3,300 Pro recommended
Heat exchanger replacement (hard-access / high-labor case) $3,300–$5,505 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

Gas Furnace pilot light / thermocouple won't stay lit

Washington — Gas Furnace pilot light / thermocouple won't stay lit Estimated
Most common repairTypical totalDIY?
Thermocouple cleaning/replacement $165–$330 DIY possible
Pilot assembly clean/replace (standing-pilot models) $165–$385 Pro recommended
Gas valve replacement (standing-pilot, root cause of last resort) $330–$770 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)

Washington — Gas Furnace noisy or loud (banging, rumbling, squealing) Estimated
Most common repairTypical totalDIY?
Inducer motor replacement $440–$1,210 Pro recommended
Blower motor/wheel service (bearings, cleaning, balancing) $165–$1,045 Pro recommended
Blower belt replacement (older belt-drive furnaces) $110–$330 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 Washington 10 problems priced

Central Air Conditioning repairs in Washington typically run $85–$3,080 (2026).

Central Air Conditioning not cooling / blowing warm air

Washington — Central Air Conditioning not cooling / blowing warm air Estimated
Most common repairTypical totalDIY?
Dual-run (run/start) capacitor replacement $220–$495 DIY possible
Refrigerant leak repair + recharge (R-410A) $330–$990 Pro recommended
Contactor / relay replacement $220–$495 DIY possible
Condenser fan motor replacement $330–$990 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

Washington — Central Air Conditioning won't turn on / no power Estimated
Most common repairTypical totalDIY?
Dual-run capacitor replacement $220–$495 DIY possible
Contactor replacement $220–$495 DIY possible
Low-voltage transformer / control-fuse replacement $165–$385 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

Washington — Central Air Conditioning capacitor replacement Estimated
Most common repairTypical totalDIY?
Dual-run (run/start) capacitor replacement $220–$495 DIY possible
Capacitor replacement + hard-start kit (weak-compressor start assist) $385–$715 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

Washington — Central Air Conditioning compressor replacement Estimated
Most common repairTypical totalDIY?
Central air / home AC compressor replacement (installed) $1,980–$3,080 Pro recommended
Hard-start kit install (cheaper stopgap, not a true compressor fix) $165–$330 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

Washington — Central Air Conditioning refrigerant leak repair / recharge Estimated
Most common repairTypical totalDIY?
Leak detection + braze/patch repair (line or coil joint) $440–$1,320 Pro recommended
Refrigerant recharge only (R-410A top-off, leak already sealed or minor) $330–$990 Pro recommended
Evaporator / condenser coil replacement (leak is in the coil itself) $1,320–$2,860 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

Washington — Central Air Conditioning frozen evaporator coil Estimated
Most common repairTypical totalDIY?
Airflow fix (filter change / blower/duct restriction cleared) $110–$330 DIY possible
Refrigerant recharge (low charge causing the freeze) $330–$990 Pro recommended
Coil cleaning / minor coil repair (frost/ice damage to fins) $440–$1,100 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

Central Air Conditioning clogged condensate drain / leaking water

Washington — Central Air Conditioning clogged condensate drain / leaking water Estimated
Most common repairTypical totalDIY?
Condensate drain line clear / flush $85–$275 DIY possible
Condensate pump replacement $275–$485 Pro recommended
Float / safety-switch replacement $110–$240 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

Washington — Central Air Conditioning contactor / relay replacement Estimated
Most common repairTypical totalDIY?
Contactor / relay replacement $220–$495 DIY possible
Contactor + capacitor combo replacement $330–$605 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

Washington — Central Air Conditioning condenser fan motor replacement Estimated
Most common repairTypical totalDIY?
Condenser fan motor replacement (standard PSC motor) $330–$770 Pro recommended
Condenser fan motor replacement (ECM/high-efficiency motor) $770–$1,320 Pro recommended
Fan blade replacement only (motor healthy, blade bent/cracked) $110–$240 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)

Washington — Central Air Conditioning short cycling (turns on and off) Estimated
Most common repairTypical totalDIY?
Dual-run capacitor replacement $220–$495 DIY possible
Refrigerant recharge (low charge triggers low-pressure cutoff cycling) $330–$990 Pro recommended
Thermostat recalibration / relocation or replacement $140–$385 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 Washington 10 problems priced

Heat Pump repairs in Washington typically run $110–$4,955 (2026).

Heat Pump not heating

Washington — Heat Pump not heating Estimated
Most common repairTypical totalDIY?
Refrigerant charge check + recharge (R-410A) $385–$1,100 Pro recommended
Reversing valve replacement $440–$1,650 Pro recommended
Defrost control board replacement $220–$715 Pro recommended
Auxiliary/electric heat strip replacement $330–$990 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

Washington — Heat Pump not cooling Estimated
Most common repairTypical totalDIY?
Dual-run capacitor replacement $220–$495 DIY possible
Refrigerant recharge (R-410A) $385–$1,100 Pro recommended
Contactor replacement $220–$495 DIY possible
Reversing valve replacement $440–$1,650 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

Washington — Heat Pump stuck in defrost / frozen outdoor unit Estimated
Most common repairTypical totalDIY?
Defrost control board replacement $220–$715 Pro recommended
Defrost sensor / outdoor coil thermostat replacement $165–$440 Pro recommended
Reversing valve replacement $440–$1,650 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

Washington — Heat Pump reversing valve replacement Estimated
Most common repairTypical totalDIY?
Reversing valve replacement (full valve body, refrigerant recovery + braze + recharge) $440–$1,650 Pro recommended
Reversing valve solenoid coil replacement (electrical coil only, valve body reused) $165–$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

Heat Pump defrost control board replacement

Washington — Heat Pump defrost control board replacement Estimated
Most common repairTypical totalDIY?
Defrost control board replacement $220–$715 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

Washington — Heat Pump capacitor replacement Estimated
Most common repairTypical totalDIY?
Dual-run capacitor replacement $220–$495 DIY possible
Capacitor replacement + hard-start kit (aging compressor start assist) $385–$715 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

Washington — Heat Pump refrigerant leak repair / recharge Estimated
Most common repairTypical totalDIY?
Minor leak repair + partial recharge $220–$550 Pro recommended
Moderate leak repair (extensive leak detection + repair + full refill) $550–$1,100 Pro recommended
Severe leak repair (coil-area leak, full evacuation + recharge) $1,100–$1,650 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

Washington — Heat Pump compressor replacement Estimated
Most common repairTypical totalDIY?
Heat pump compressor replacement (installed) $1,980–$4,955 Pro recommended
Hard-start kit install (cheaper stopgap, not a true compressor fix) $165–$330 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

Washington — Heat Pump outdoor fan motor replacement Estimated
Most common repairTypical totalDIY?
Outdoor fan motor replacement (standard PSC) $275–$825 Pro recommended
Outdoor fan motor replacement (ECM/DC variable-speed) $660–$1,320 Pro recommended
Fan blade replacement only (motor healthy, blade damaged) $110–$240 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)

Washington — 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 $140–$440 Pro recommended
Refrigerant leak search and recharge where low charge is tripping the safety control $330–$1,540 Pro recommended
Failing start capacitor, contactor or pressure switch replaced; thermostat recalibrated or moved off a bad wall $155–$550 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 Washington 10 problems priced

Ductless Mini-Split repairs in Washington typically run $90–$3,080 (2026).

Ductless Mini-Split not cooling

Washington — Ductless Mini-Split not cooling Estimated
Most common repairTypical totalDIY?
Refrigerant leak search + repair + recharge $330–$1,100 Pro recommended
Indoor or outdoor control board (PCB) replacement $165–$1,210 Pro recommended
Compressor replacement (outdoor unit) $880–$3,080 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

Washington — Ductless Mini-Split not heating Estimated
Most common repairTypical totalDIY?
Reversing valve replacement $330–$1,320 Pro recommended
Refrigerant leak search + repair + recharge $330–$1,100 Pro recommended
Indoor or outdoor control board (PCB) replacement $165–$1,210 Pro recommended
Thermistor / temperature sensor replacement $110–$330 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

Washington — Ductless Mini-Split refrigerant leak repair / recharge Estimated
Most common repairTypical totalDIY?
Refrigerant recharge only (top-off, no repairable leak point found) $110–$385 Pro recommended
Leak search + flare/line-set repair + recharge $330–$1,100 Pro recommended
Evaporator or condenser coil replacement (non-repairable leak) $1,980–$2,750 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

Washington — Ductless Mini-Split compressor replacement Estimated
Most common repairTypical totalDIY?
Compressor replacement (outdoor unit) $880–$3,080 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

Washington — Ductless Mini-Split indoor blower / fan motor replacement Estimated
Most common repairTypical totalDIY?
Indoor cross-flow blower/fan motor replacement $295–$660 Pro recommended
Cross-flow fan bearing / fan-wheel replacement (cheaper fix) $90–$275 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

Washington — Ductless Mini-Split indoor head leaking water Estimated
Most common repairTypical totalDIY?
Condensate drain line clear / clean $110–$550 DIY possible
Condensate pump replacement $165–$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

Ductless Mini-Split error code / flashing light fault

Washington — Ductless Mini-Split error code / flashing light fault Estimated
Most common repairTypical totalDIY?
Thermistor / sensor replacement $110–$330 Pro recommended
Indoor or outdoor control board (PCB) replacement $165–$1,210 Pro recommended
Communication (signal) wire repair $165–$495 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

Washington — Ductless Mini-Split control board / pcb replacement Estimated
Most common repairTypical totalDIY?
Outdoor unit main control board (PCB) replacement $165–$1,210 Pro recommended
Indoor unit interface/control board replacement (lower-cost tier) $220–$550 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

Washington — Ductless Mini-Split outdoor unit not running Estimated
Most common repairTypical totalDIY?
Run/start capacitor replacement $110–$330 Pro recommended
Outdoor unit control board (PCB) replacement $165–$1,210 Pro recommended
Compressor replacement (outdoor unit) $880–$3,080 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

Washington — 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 $240–$605 Pro recommended
Drain line flush and anti-microbial treatment of the condensate path $95–$285 Pro recommended
Blower wheel pulled and cleaned where biofilm has hardened on the fins, additional heads billed each $330–$770 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 Washington 10 problems priced

Boiler repairs in Washington typically run $110–$3,300 (2026).

Boiler no heat / not firing up

Washington — Boiler no heat / not firing up Estimated
Most common repairTypical totalDIY?
Circulator pump replacement $330–$1,210 Pro recommended
Ignition electrode / ignitor replacement $110–$440 DIY possible
Gas valve replacement $220–$1,210 Pro recommended
Aquastat / control replacement $165–$550 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

Washington — Boiler no hot water Estimated
Most common repairTypical totalDIY?
Circulator pump replacement $330–$1,210 Pro recommended
Domestic hot water (plate/secondary) heat exchanger replacement $550–$1,100 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

Washington — Boiler losing pressure Estimated
Most common repairTypical totalDIY?
Expansion tank / vessel replacement + repressurize $220–$880 Pro recommended
Pressure relief valve replacement $165–$550 Pro recommended
Pipe / fitting leak repair (slow pressure loss) $195–$880 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

Washington — Boiler leaking water Estimated
Most common repairTypical totalDIY?
Pipe / fitting / pump-seal leak repair $195–$880 Pro recommended
Pressure relief valve replacement $165–$550 Pro recommended
Heat exchanger replacement (cracked/corroded — high-ticket) $1,100–$3,300 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)

Washington — Boiler kettling (banging / rumbling noise) Estimated
Most common repairTypical totalDIY?
Chemical / power flush (descale + sludge removal) $440–$1,320 Pro recommended
Pressure relief valve replacement (post-overheat check) $165–$550 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

Washington — Boiler pilot light won't stay lit Estimated
Most common repairTypical totalDIY?
Thermocouple replacement $110–$440 DIY possible
Pilot assembly cleaning / adjustment (no parts) $110–$330 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)

Washington — Boiler keeps switching off (short cycling) Estimated
Most common repairTypical totalDIY?
Expansion vessel repressurize / replace $220–$880 Pro recommended
Short-cycling diagnostic & control repair (limit control / pressure switch / wiring) $220–$1,210 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

Washington — Boiler circulator pump replacement Estimated
Most common repairTypical totalDIY?
Circulator / circulation pump replacement $330–$1,210 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

Washington — Boiler expansion vessel / tank replacement Estimated
Most common repairTypical totalDIY?
Expansion vessel / tank replacement + repressurize $220–$880 Pro recommended
Expansion tank swap only (accessible tank, simpler job) $165–$440 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

Washington — Boiler ignition fault / lockout Estimated
Most common repairTypical totalDIY?
Ignition electrode / ignitor replacement $110–$440 DIY possible
Ignition control module (lockout board) replacement $330–$1,430 Pro recommended
Gas valve replacement $220–$1,210 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 Washington 10 problems priced

Thermostat & Controls repairs in Washington typically run $65–$990 (2026).

Thermostat & Controls smart thermostat installation

Washington — Thermostat & Controls smart thermostat installation Estimated
Most common repairTypical totalDIY?
Smart thermostat installation — existing compatible wiring (no new C-wire needed) $165–$440 DIY possible
Smart thermostat installation with new C-wire run/adapter (no existing C-wire) $330–$770 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

Washington — Thermostat & Controls blank screen / won't power on Estimated
Most common repairTypical totalDIY?
Blown low-voltage fuse / tripped breaker / transformer reset or replace $85–$240 DIY possible
Loose or faulty C-wire connection repair $95–$275 Pro recommended
Thermostat unit replacement (internal board dead) $110–$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

Thermostat & Controls won't reach set temperature

Washington — Thermostat & Controls won't reach set temperature Estimated
Most common repairTypical totalDIY?
Wiring fault / loose low-voltage connection repair $95–$255 Pro recommended
Sensor recalibration / thermostat relocation (labor only) $85–$200 DIY possible
Thermostat replacement (failed internal temperature sensor) $110–$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

Thermostat & Controls thermostat wiring / c-wire repair

Washington — Thermostat & Controls thermostat wiring / c-wire repair Estimated
Most common repairTypical totalDIY?
Repair/reconnect existing thermostat wiring (loose or damaged wire) $65–$220 DIY possible
Add new C-wire (fish wire through wall from HVAC equipment to thermostat) $130–$420 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

Washington — 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–$195 DIY possible
Smart thermostat replacement (failed Wi-Fi radio/board) $165–$440 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

Washington — Thermostat & Controls clicks but system won't respond Estimated
Most common repairTypical totalDIY?
Relay / transformer replacement $95–$255 Pro recommended
Wiring fault repair (shorted or miswired low-voltage run) $75–$220 Pro recommended
Thermostat replacement (internal relay contacts failed) $120–$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

Thermostat & Controls wrong temperature reading / miscalibrated

Washington — Thermostat & Controls wrong temperature reading / miscalibrated Estimated
Most common repairTypical totalDIY?
Recalibrate / relocate thermostat (labor only) $70–$175 DIY possible
Thermostat replacement (drifted/failed internal sensor) $110–$330 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

Washington — Thermostat & Controls zone control board / damper repair Estimated
Most common repairTypical totalDIY?
Zone damper actuator/motor replacement (single zone) $165–$550 Pro recommended
Zone control panel/board replacement $275–$990 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

Washington — 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 $140–$495 Pro recommended
Fan limit switch replacement on a furnace whose blower will not stop $155–$530 Pro recommended
Welded contactor, fan-centre relay or failed control board replaced $165–$990 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

Washington — 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 $220–$615 Pro recommended
Relocate onto wiring that already reaches a nearby wall, plus making good the old opening $90–$350 Pro recommended
Wireless / RF room sensor conversion where a cable run is impractical $165–$660 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 Washington 10 problems priced

Air Handler repairs in Washington typically run $65–$3,525 (2026).

Air Handler blower not running

Washington — Air Handler blower not running Estimated
Most common repairTypical totalDIY?
Capacitor replacement $120–$385 DIY possible
Blower motor replacement (seized/burned-out motor) $440–$880 Pro recommended
Control board / fan relay replacement $440–$660 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

Washington — Air Handler blower motor replacement Estimated
Most common repairTypical totalDIY?
PSC (single-speed) blower motor replacement $440–$880 Pro recommended
ECM / variable-speed blower motor + module replacement $880–$1,650 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

Washington — Air Handler weak airflow Estimated
Most common repairTypical totalDIY?
Blower wheel cleaning (dust/debris buildup restricting airflow) $200–$510 Pro recommended
Blower wheel replacement (cracked/unbalanced wheel) $110–$440 Pro recommended
Capacitor replacement (undervolted motor spins slower than rated) $120–$385 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)

Washington — Air Handler leaking water (drain pan / coil) Estimated
Most common repairTypical totalDIY?
Condensate drain line clear/flush $85–$275 DIY possible
Condensate pump replacement $140–$310 DIY possible
Drain pan replacement (rusted-through/cracked primary pan) $660–$1,320 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

Washington — Air Handler frozen evaporator coil Estimated
Most common repairTypical totalDIY?
Airflow-restriction fix (filter/blower) + thaw-out service call $110–$330 DIY possible
Refrigerant leak locate-and-repair + recharge $220–$550 Pro recommended
Evaporator coil cleaning/repair (physically iced-over or fouled coil) $165–$495 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)

Washington — Air Handler noisy or loud (rattling / humming) Estimated
Most common repairTypical totalDIY?
Blower motor replacement (worn bearings — grinding/squealing) $385–$825 Pro recommended
Blower wheel cleaning/rebalancing (rattling from dust or a bent fin) $165–$440 Pro recommended
Mounting hardware / vibration isolator repair $85–$220 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

Washington — Air Handler electric heat strip / auxiliary heat replacement Estimated
Most common repairTypical totalDIY?
Heat sequencer relay replacement $165–$440 Pro recommended
Heat strip element replacement $275–$715 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

Washington — Air Handler control board replacement Estimated
Most common repairTypical totalDIY?
Standard air-handler control board replacement $440–$660 Pro recommended
Advanced/variable-speed control board replacement $550–$990 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

Washington — Air Handler evaporator coil replacement Estimated
Most common repairTypical totalDIY?
Evaporator coil replacement with refrigerant recovery, braze-in and recharge $990–$3,300 Pro recommended
Cased coil swap with a new drain pan and re-made line-set connections $1,210–$3,525 Pro recommended
Warranty coil replacement — manufacturer covers the part, homeowner is billed labour and refrigerant $385–$1,210 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

Washington — 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 $110–$440 Pro recommended
Pull-and-clean where the coil is sealed in — sheet metal cut open, blower wheel pulled and washed $420–$770 Pro recommended
Anti-microbial treatment and condensate-pan tablet follow-up to stop the smell returning $65–$275 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 Washington 10 problems priced

Ductwork & Vents repairs in Washington typically run $30–$7,595 (2026).

Ductwork & Vents leaky duct sealing / repair

Washington — Ductwork & Vents leaky duct sealing / repair Estimated
Most common repairTypical totalDIY?
Manual mastic/foil-tape duct sealing (accessible leak points) $550–$1,650 DIY possible
Aeroseal aerosol duct sealing (whole-system, reaches hard-to-access leaks) $1,650–$7,595 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

Washington — Ductwork & Vents ductwork replacement Estimated
Most common repairTypical totalDIY?
Partial-run ductwork replacement (single run or section) $440–$1,210 Pro recommended
Whole-system ductwork replacement $1,540–$6,165 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)

Washington — Ductwork & Vents uneven airflow between rooms (balancing) Estimated
Most common repairTypical totalDIY?
Professional duct/damper air balancing $440–$2,200 Pro recommended
Add a return-air duct (new run to a starved room) $550–$1,320 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

Washington — Ductwork & Vents disconnected / collapsed duct repair Estimated
Most common repairTypical totalDIY?
Reconnect and re-support disconnected/collapsed duct section $165–$1,320 Pro recommended
Replace damaged duct section (reconnect insufficient) $550–$2,750 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

Washington — Ductwork & Vents duct damper repair Estimated
Most common repairTypical totalDIY?
Motorized damper actuator replacement $165–$715 Pro recommended
Manual damper blade/motor replacement (non-zoned duct damper) $220–$495 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

Washington — Ductwork & Vents vent / register replacement Estimated
Most common repairTypical totalDIY?
Vent/register replacement (standard supply or return grille) $110–$330 DIY possible
Register boot repair (duct-to-floor/wall connector) $110–$385 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

Washington — Ductwork & Vents duct insulation replacement Estimated
Most common repairTypical totalDIY?
Re-wrap exposed ductwork with fiberglass duct insulation $1,100–$2,970 Pro recommended
Insulated flex-duct section replacement (swap a damaged run for insulated flex) $550–$1,650 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

Washington — Ductwork & Vents duct cleaning Estimated
Most common repairTypical totalDIY?
Whole-home professional duct cleaning (full-system 2-person crew service) $495–$1,100 Pro recommended
Per-vent or per-square-foot priced cleaning (lighter-touch service) $200–$550 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

Washington — 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 $330–$990 Pro recommended
Add a return air vent or return duct where the system is return-starved $165–$990 Pro recommended
Add or swap the supply register only, where a branch already reaches the room $30–$240 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)

Washington — 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 $110–$550 DIY possible
Static-pressure correction: open up or resize a restricted return, reset dampers and rebalance $165–$990 Pro recommended
Refit or replace rattling registers and grilles, re-hang loose flex-duct, fit a backdraft damper $55–$385 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 Washington 10 problems priced

Oil Furnace repairs in Washington typically run $100–$14,310 (2026).

Oil Furnace won't start / won't fire

Washington — Oil Furnace won't start / won't fire Estimated
Most common repairTypical totalDIY?
Cad-cell primary control replacement (lockout/no-start fix) $165–$350 Pro recommended
Nozzle & oil filter replacement (fuel-delivery no-start cause) $110–$285 Pro recommended
Ignition electrodes / transformer replacement $110–$330 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

Washington — Oil Furnace not heating / no heat Estimated
Most common repairTypical totalDIY?
Nozzle & oil filter replacement (routine fuel-delivery fix) $110–$285 Pro recommended
Ignition electrodes replacement $110–$330 Pro recommended
Fuel-oil pump replacement $330–$770 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)

Washington — Oil Furnace nozzle / oil filter replacement (tune-up) Estimated
Most common repairTypical totalDIY?
Standard annual nozzle + oil filter service $110–$220 Pro recommended
Comprehensive tune-up + nozzle/filter (full cleaning, combustion test) $220–$385 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

Washington — Oil Furnace ignition electrode / transformer replacement Estimated
Most common repairTypical totalDIY?
Ignition electrode pair replacement $110–$275 Pro recommended
Ignition transformer replacement $110–$385 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

Washington — Oil Furnace oil burner motor replacement Estimated
Most common repairTypical totalDIY?
Oil burner motor replacement (1/7 HP PSC, standard residential) $250–$550 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

Washington — Oil Furnace cad cell / primary control replacement Estimated
Most common repairTypical totalDIY?
Cad-cell (flame-sensor eye) replacement only $100–$240 Pro recommended
Full primary control (cad-cell relay) module replacement $165–$385 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

Washington — Oil Furnace puffback / soot cleanup Estimated
Most common repairTypical totalDIY?
Burner tune + combustion-chamber soot cleaning (root-cause HVAC fix) $165–$495 Pro recommended
Professional soot/smoke damage cleanup (separate restoration service, NOT an HVAC repair) $4,955–$14,310 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

Washington — Oil Furnace fuel oil pump replacement Estimated
Most common repairTypical totalDIY?
Single-stage fuel-oil pump replacement $305–$495 Pro recommended
Two-stage fuel-oil pump replacement $495–$715 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

Washington — Oil Furnace blower motor replacement Estimated
Most common repairTypical totalDIY?
PSC blower motor replacement (single-speed) $330–$825 Pro recommended
ECM / variable-speed blower motor replacement $660–$1,540 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

Washington — 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 $1,100–$4,405 Pro recommended
Combustion chamber / firebox liner replacement with a post-repair combustion analysis $275–$990 Pro recommended
Condemn-and-quote: furnace red-tagged and shut off, replacement oil furnace quoted instead of the repair $4,405–$8,805 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 Washington

We take each national base range and multiply it by Washington's local index of 1.10:

local range = national base × 1.10

The index blends the metro's wage relativity (Washington metro wages for appliance technicians (BLS OEWS occupation 49-9031)) with the BEA Regional Price Parity for Washington, 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 District of Columbia 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).