Boiler Repair Cost (2026)
Most boiler repairs run 800–22.000 kr. depending on the problem, the brand tier, and your local labour costs — in kroner, from Danish sources. Start from the problem, then localize. Reviewed August 2026.
800–22.000 kr. across all common boiler repairs. Pick the problem to narrow it.
| Most common repair | Typical total (DKK) | DIY? |
|---|---|---|
| Topping up the system pressure and bleeding the radiators | 0–1.200 kr. | DIY possible |
| Replacing a failed circulating pump | 2.000–5.500 kr. | Pro recommended |
Plus a typical service-call / diagnostic fee of 850–1.600 kr., often credited toward the repair.
Pick a quality tier for a class-typical estimate. Everything updates without a page reload; no data leaves your browser.
Base: published rates from 3 Danish plumbing-and-heating and heat-pump companies (2026-08) · Denmark national base range (Danmarks Statistik Lønstatistik 2024) · Reviewed August 2026 · Estimated
How much does boiler repair cost by problem? Estimated
| Problem | Typical range | Repairs priced |
|---|---|---|
| No Heat / Not Firing Up | 0–5.500 kr. | 2 |
| No Hot Water | 1.300–22.000 kr. | 2 |
| Losing Pressure | 0–2.500 kr. | 2 |
| Leaking Water | 1.500–4.500 kr. | 2 |
| Kettling (Banging / Rumbling Noise) | 0–14.000 kr. | 2 |
| Pilot Light Won't Stay Lit | 1.800–2.500 kr. | 1 |
| Keeps Switching Off (Short Cycling) | 0–2.900 kr. | 2 |
| Circulator Pump Replacement | 2.000–7.000 kr. | 2 |
| Expansion Vessel / Tank Replacement | 1.500–4.500 kr. | 2 |
| Ignition Fault / Lockout | 0–4.300 kr. | 2 |
Base: published rates from 3 Danish plumbing-and-heating and heat-pump companies (2026-08) · Denmark national base range (Danmarks Statistik Lønstatistik 2024) · Reviewed August 2026 · Estimated
How do brand & quality tier change the parts cost?
Brand and tier adjust the parts portion only — never labour. The factors below are parts prices relative to the Danish mainstream baseline — not a quality or reliability ranking. We only say higher or lower about brands we actually found Danish shop prices for. Panasonic is the reference line (1.0) and Bosch sits right on it (1.05). Vaillant, Baxi and Nilan sit lower (0.80), because a gas-boiler board and a ventilation control board are cheaper components than a heat-pump board — that is a statement about the part, not about the brand. LG sits higher (1.40), and highest are the Japanese air-to-air brands Mitsubishi Electric, Mitsubishi Heavy Industries, Daikin and Fujitsu (1.50). For Buderus, Milton, Vølund, Metro Therm, Genvex, Danfoss, Viessmann, Weishaupt and NIBE we found no public Danish parts price, so they sit at the 1.0 reference level. That means we found no price evidence — not that their parts cost the same as Panasonic's. We describe those by role rather than by price level: Buderus, Milton, Viessmann and Weishaupt are gas-boiler nameplates carried by Danish plumbing retailers; Vølund and Metro Therm are Danish makers of boilers and air-to-water heat pumps; Genvex makes heat-recovery home ventilation; NIBE is an established heat-pump brand; and Danfoss covers controls and thermostats. Toshiba's 1.50 is likewise not a measured price but the mid-level of the Japanese brands in the table. Pick a tier in the calculator for a class-typical estimate, or a specific Danish brand to override it.
| Brand | Parts factor | Basis |
|---|---|---|
| Mid-range tier parts ×1 | ||
| Panasonic | ×1 | Baseline — no parts adjustment |
| Bosch | ×1.05 | Parts ×1.05 (published rates from 1 local repair company) |
| Vaillant | ×0.8 | Parts ×0.8 (published rates from 3 local repair companies) |
| Baxi | ×0.8 | Parts ×0.8 (published rates from 1 local repair company) |
| Buderus | ×1 | Baseline — no parts adjustment |
| Milton | ×1 | Baseline — no parts adjustment |
| Vølund | ×1 | Baseline — no parts adjustment |
| Metro Therm | ×1 | Baseline — no parts adjustment |
| Genvex | ×1 | Baseline — no parts adjustment |
| Danfoss | ×1 | Baseline — no parts adjustment |
| NIBE | ×1 | Baseline — no parts adjustment |
| LG | ×1.4 | Parts ×1.4 (published rates from 1 local repair company) |
| Premium tier parts ×1.5 | ||
| Nilan | ×0.8 | Parts ×0.8 (published rates from 3 local repair companies) |
| Viessmann | ×1 | Baseline — no parts adjustment |
| Weishaupt | ×1 | Baseline — no parts adjustment |
| Mitsubishi Electric | ×1.5 | Parts ×1.5 (published rates from 1 local repair company) |
| Mitsubishi Heavy Industries | ×1.5 | Parts ×1.5 (published rates from 1 local repair company) |
| Daikin | ×1.5 | Parts ×1.5 (published rates from 1 local repair company) |
| Fujitsu | ×1.5 | Parts ×1.5 (published rates from 1 local repair company) |
| Toshiba | ×1.5 | Parts ×1.5 (tier median (Japanese split-AC / air-to-water band). No publicly priced Danish board basket exists for Toshiba. The four Japanese brands in this file that DO carry Danish parts evidence -- Mitsubishi Electric, Mitsubishi Heavy Industries, Daikin and Fujitsu -- all sit at the 1.50 policy cap, so 1.50 IS that band's median. Because that median is itself a capped value, Toshiba's 1.50 inherits the cap rather than resting on an observed Danish ratio. Toshiba is named among the most-sold heat-pump brands in Denmark alongside Panasonic, Mitsubishi, Daikin, Bosch and LG.) |
Boiler error codes
When the display shows a fault code, the diagnosis — and the price — gets specific. 372 boiler codes are decoded in the error-code directory; the most looked-up:
Vaillant F.22 Vaillant F.28 Vaillant F.29 Vaillant F.54 Vaillant F.12 Vaillant F.13 Baxi E50 Baxi E119 Baxi E125 Baxi E133 Danfoss 2 flashes Danfoss 3 flashes
How much is a boiler service-call fee?
Most Danish companies charge a diagnostic / service-call fee of 850–1.600 kr., often credited toward the repair if you proceed.
Base: published rates from 4 Danish plumbing-and-heating and heat-pump companies · National fee range · Reviewed August 2026 · Estimated
Is it worth repairing a boiler?
If the repair quote exceeds roughly half the price of a comparable new boiler — or the unit is well past its typical service life — replacement is often the better value. Localize the repair range above first, then compare.
Prices are region-level estimates based on labour-cost data, not fake city precision. See the methodology for the localization method and named sources.
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).