Gas boiler service
Cleaning of burner and heat exchanger, safety checks, combustion analysis, adjustment. Service certificate compliant with regional rules handed over on site.
Boiler breakdownCold radiatorBoiler serviceFaulty thermostat? One team.
In Brussels your boiler service has a known price before the engineer climbs the stairs. Gas, oil, condensing: certificate handed over on site, itemised VAT invoice.
19minBrussels · 9.9 km from our offices · drive time without heavy traffic · The arrival time depends on where the team is and on traffic; it is given to you by phone.
In short — Heating engineer in Brussels
FUSE SERVICES provides heating engineer interventions in Brussels across postcode 1000. Operating 24 hours a day, 7 days a week, public holidays included, our team handles oil and gas boiler systems for residents at any hour of the day and night. For fault diagnosis or boiler servicing, dial 02 886 10 49 to discuss the required work with a technician.

One technician comes to Brussels, one itemised invoice.
A boiler that has stopped on a cold night leaves households in the municipality of Brussels without central heating. Across an area of 33.1 km2 with 195546 inhabitants, interventions include fault diagnosis (call-out + 1 h), circulation pump replacement, thermocouple or sensor replacement, and boiler heat exchanger replacement. A conventional gas boiler service with certificate included or an oil boiler service with nozzle and sweep included may also be required. Callers should state their heating type and observe whether the system is oil, condensing gas, or conventional gas.
Cleaning of burner and heat exchanger, safety checks, combustion analysis, adjustment. Service certificate compliant with regional rules handed over on site.
Nozzle replacement, combustion chamber cleaning, flue sweeping where needed, burner adjustment and flue gas measurement. Mandatory annual certificate.
Error code, lockout, no hot water, burner that will not start. Fixed-fee diagnosis, then repair amount stated before any part is ordered.
Replacement of the parts behind pressure and circulation faults: pump, expansion vessel, safety valve, automatic air vent. Part reference shown on the invoice.
Bleeding and balancing the circuit, thermostatic valve replacement, fitting a room or smart thermostat. Connection to the existing circuit where needed.
When repairing no longer makes sense: written quote for a condensing boiler, removal of the old one, connection, commissioning and first certificate.
What people in Brussels ask before confirming.
Brussels, postcode 1000, Brussels-Capital Region. One page per municipality, with its neighbours and distances.
Coverage extends across the municipality of Brussels, serving postcodes 1000, 1020, 1040, 1050, 1120, and 1130 within the arrondissement administratif de Bruxelles-Capitale. This territory forms part of the Brussels-Capital Region, where all 19 covered municipalities are included. Nearby covered municipalities include Molenbeek-Saint-Jean at 1.3 km, Saint-Josse-ten-Noode at 1.6 km, Anderlecht at 1.8 km, Ixelles at 1.8 km, Saint-Gilles at 1.9 km, and Koekelberg at 2.1 km. The municipality lies 6.2 km from our office in Drogenbos and 0.0 km from the centre of Brussels.
Neighbouring municipalities of Brussels we cover
Local sheet
Neighbouring municipalities of Brussels we cover
The ranges the market charges in 2026, published as they are. Your exact price for Brussels is stated before the call-out.
2026 Belgian market ranges in euros excluding VAT, taken from public comparison sites; this is not our price list: your amount is quoted on the phone for your situation.
| Job | Indicative price |
|---|---|
| Call-out (flat fee)excl. parts | €24 – 48 incl. 21 % VAT flat rate€20 – 40 excl. VAT · €21 – 42 incl. 6 % VAT |
| Heating engineer hourly rateexcl. parts | €39 – 85 incl. 21 % VAT / h€32 – 70 excl. VAT · €34 – 74 incl. 6 % VAT |
| Conventional gas boiler service (certificate included)excl. parts | €121 – 163 incl. 21 % VAT flat rate€100 – 135 excl. VAT · €106 – 143 incl. 6 % VAT |
| Condensing gas boiler serviceexcl. parts | €163 – 206 incl. 21 % VAT flat rate€135 – 170 excl. VAT · €143 – 180 incl. 6 % VAT |
| Oil boiler service (nozzle and sweep included) | €182 – 302 incl. 21 % VAT flat rate€150 – 250 excl. VAT · €159 – 265 incl. 6 % VAT |
| Flue sweepingexcl. parts | €85 – 121 incl. 21 % VAT flat rate€70 – 100 excl. VAT · €74 – 106 incl. 6 % VAT |
| Fault diagnosis (call-out + 1 h)excl. parts | €157 – 266 incl. 21 % VAT flat rate€130 – 220 excl. VAT · €138 – 233 incl. 6 % VAT |
| Bleeding and balancing the radiator circuitexcl. parts | €121 – 218 incl. 21 % VAT flat rate€100 – 180 excl. VAT · €106 – 191 incl. 6 % VAT |
| Thermocouple or sensor replacement | €145 – 242 incl. 21 % VAT flat rate€120 – 200 excl. VAT · €127 – 212 incl. 6 % VAT |
| Expansion vessel replacement | €218 – 363 incl. 21 % VAT flat rate€180 – 300 excl. VAT · €191 – 318 incl. 6 % VAT |
| Circulation pump replacement | €302 – 544 incl. 21 % VAT flat rate€250 – 450 excl. VAT · €265 – 477 incl. 6 % VAT |
| Boiler heat exchanger replacement | €424 – 847 incl. 21 % VAT flat rate€350 – 700 excl. VAT · €371 – 742 incl. 6 % VAT |
| Surcharge | Evenings, nights, weekends and public holidays: +50 to 100 % on labour; difficult access (cramped cellar, attic): +10 to 25 € |
Sources
The price is fixed on the phone before the technician sets off for Brussels. After that it does not change without your consent.
Boiler type, brand if you know it, symptom or error code. We state the service or diagnosis fee before leaving.
Fee stated by phoneThe engineer identifies the cause, shows it to you and states the repair amount, part included. Without your agreement he opens nothing further.
Agreement before any partWork carried out, combustion analysis, safety and pressure checks. The system is restarted in front of you.
Verified restartService certificate handed over on site, invoice with travel, labour and parts itemised, VAT at 6 % or 21 % shown.
Documents handed over on siteTwo choices and you have an order of magnitude excluding VAT, without leaving your number. Belgian market ranges, not our own price list.
Estimated range · excl. VAT
6 %: private dwelling over ten years old, works with parts fitted. Otherwise 21 %.
Indicative estimate excluding VAT based on 2026 Belgian market ranges. The actual amount is quoted on the phone and confirmed on site before work begins.
The number one complaint about repair firms is the line nobody saw coming. Here are the ones we rule out.
Document · Commitment
If it is urgent, call. If it can wait, pick a day and time in Brussels: the slot is confirmed straight away.
Describe the situation in three fields. We come back to you with a slot and a price for Brussels.