Gas boiler service
Cleaning of burner and heat exchanger, safety checks, combustion analysis, adjustment. Service certificate compliant with regional rules handed over on site.
Overijse · Flemish Brabant
Boiler breakdownCold radiatorBoiler serviceFaulty thermostat? One team.
Heating engineer in Overijse for the statutory service, breakdowns and replacement of pumps, expansion vessels or thermostats. One amount stated, no line added afterwards.
PRICE UPFRONT before the job startsCERTIFICATE issued after the serviceGAS · OIL conventional and condensing6 % VAT homes over 10 years old
- VAT BE 1027.949.184
- Free quote
- FR · NL · EN
DispatchSector: Overijse (3090)
34minOverijse · 25.2 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.
StatusTeam reachable by phone and WhatsApp
TimingTime slot and price confirmed by phone before the technician leaves
HeatingOverijse · 3090
In short — Heating engineer in Overijse
FUSE SERVICES provides heating engineer interventions across Overijse in postcode 3090. Operating 24 hours a day, 7 days a week, public holidays included, our heating engineer team assists residents with heating systems day and night. You can book an intervention or request information directly by telephoning 02 886 10 49 at any hour.
Emergency
Heating engineer in Overijse: boiler breakdown? One team.
- 01Call
- 02Diagnosis on the phone
- 03Call-out
01 — Prices
Indicative Belgian market prices
The ranges the market charges in 2026, published as they are. Your exact price for Overijse 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
- https://blog.trustup.be/fr/prix-entretien-chaudiere-gaz/ — accessed 3 September 2026
- https://www.bobex.be/fr-be/chaudiere/entretien/ — accessed 3 September 2026
- https://www.bobex.be/fr-be/chaudiere/depannage/ — accessed 3 September 2026
- https://blog.trustup.be/fr/depannage-plombier-prix/ — accessed 3 September 2026
02 — On the ground
Overijse: what changes on site
Overijse, postcode 3090, Flemish Brabant. One page per municipality, with its neighbours and distances.
Overijse is situated at a straight-line distance of 17.8 km from our office in Drogenbos, 1620, and 16.9 km from the centre of Brussels. Within Flemish Brabant, where all 63 covered municipalities in the zone receive complete coverage, service extends throughout postcode 3090, including the sub-locality of Overijse. Nearby covered municipalities include Huldenberg at 2.5 km, Hoeilaart at 6.4 km, La Hulpe at 6.6 km, Rixensart at 6.7 km, Wavre at 6.8 km, and Tervuren at 7.0 km.
Local sheet3090 · Flemish Brabant
Neighbouring municipalities of Overijse we cover
Local sheet
- Postcode
- 3090
- Region
- Flemish Brabant
- Brussels centre
- 16.9 km as the crow flies
Neighbouring municipalities of Overijse we cover
- Huldenberg
- 2.5 km
- Hoeilaart
- 6.4 km
- La Hulpe
- 6.6 km
- Rixensart
- 6.7 km
- Wavre
- 6.8 km
- Tervuren
- 7.0 km
03 — Questions
Your questions before we arrive
What people in Overijse ask before confirming.
How long for a boiler repair in winter?
The time is given on the phone according to the day's round; a home without heating or hot water comes before a planned service. If a part must be ordered, we give the supplier lead time before you confirm, and we get the system running provisionally when it is safe to do so. See the prices →
What guarantee covers a replaced part?
New parts are covered by the two-year legal conformity guarantee under Belgian law, plus the manufacturer's warranty where it is longer. The labour guarantee is written on the invoice. An identical fault on the same part within that period is redone without a diagnosis fee. Request a quote →
Breakdown tonight: emergency or appointment tomorrow?
A smell of gas is an emergency for Sibelga or 112, not for a heating engineer. For a boiler that has stopped without danger, next-day working-hours appointment costs the normal fee; an evening or weekend visit carries the surcharge stated on the phone. We give you both options and the price of each. See the prices →
Conventional gas boiler service (certificate included) in Overijse: how much does it cost?
The Belgian market in 2026 sits between €100 and €135 excluding VAT for conventional gas boiler service (certificate included), night and weekend surcharges excluded. This is not our own rate card: your exact amount is announced on the phone before the technician leaves for Overijse, and the invoice separates call-out, labour and parts. Request a quote →
Do you really cover Overijse (3090)?
Yes. Overijse is in our area, Flemish Brabant included. The nearest municipality we also cover is Huldenberg, 2.5 km away. The slot is confirmed by phone before the technician leaves. See the prices →
What does a call-out in Overijse cost and how is pricing handled?
The amount is stated on the phone before the technician leaves. Labour carries a surcharge for evening, night, Sunday, and public holiday attendance. No part is ordered without its price being stated, and no service is invoiced without a certificate handed over. Request a quote →
Are the sub-localities of Overijse covered by the heating engineer service?
Yes, our heating engineer service covers the sub-locality of Overijse within postcode 3090. Complete coverage applies across this municipality as part of our work throughout all 63 covered municipalities in the zone of Flemish Brabant. See the prices →
Does the heating engineer team travel to Overijse and where is the company based?
Yes, our heating engineer attends Overijse across its 44.4 km2 territory. FUSE SERVICES is based at its registered office at Chaussée de Ruisbroek 257 in Drogenbos, located at a straight-line distance of 17.8 km from Overijse. Request a quote →
Will my boiler in Overijse be repaired instead of replaced?
Yes, our written promise confirms that no boiler replacement is proposed when a priced repair will do. Technicians handle repairs such as circulation pump replacement, thermocouple or sensor replacement, or expansion vessel replacement before considering full unit replacement. See the prices →
Can I contact a heating engineer during the night, on Sunday, or on public holidays?
Yes, telephone assistance and call-outs run 24 hours a day, 7 days a week, public holidays included. You can reach our heating engineer service in Overijse at any time by calling 02 886 10 49. Request a quote →
04 — Estimate
Your price range in 20 seconds
Two choices and you have an order of magnitude excluding VAT, without leaving your number. Belgian market ranges, not our own price list.
Preliminary quoteEstimate for Overijse
Estimated range · excl. VAT
- incl. 6 % VAT
- incl. 21 % 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.
05 — Method
Four steps, no surprises
The price is fixed on the phone before the technician sets off for Overijse. After that it does not change without your consent.
1
You call
Boiler type, brand if you know it, symptom or error code. We state the service or diagnosis fee before leaving.
Fee stated by phone2
Diagnosis and pricing
The 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 part3
Repair or service
Work carried out, combustion analysis, safety and pressure checks. The system is restarted in front of you.
Verified restart4
Certificate and invoice
Service certificate handed over on site, invoice with travel, labour and parts itemised, VAT at 6 % or 21 % shown.
Documents handed over on site06 — Scope
What we do at your place
One technician comes to Overijse, one itemised invoice.
Across an area of 44.4 km2 populated by 25169 inhabitants in the arrondissement administratif de Hal-Vilvorde, local heating engineer requirements in Overijse vary widely. Interventions encompass fault diagnosis with call-out and one hour of labour, bleeding and balancing the radiator circuit, or an oil boiler service with nozzle and sweep included. Technicians also carry out a conventional gas boiler service with certificate included, flue sweeping, or a boiler heat exchanger replacement. When calling, please describe your boiler type and any observed warning signs.
Oil boiler service
Nozzle replacement, combustion chamber cleaning, flue sweeping where needed, burner adjustment and flue gas measurement. Mandatory annual certificate.
Boiler repairs
Error code, lockout, no hot water, burner that will not start. Fixed-fee diagnosis, then repair amount stated before any part is ordered.
Pump, vessel, valve
Replacement of the parts behind pressure and circulation faults: pump, expansion vessel, safety valve, automatic air vent. Part reference shown on the invoice.
Radiators and thermostats
Bleeding and balancing the circuit, thermostatic valve replacement, fitting a room or smart thermostat. Connection to the existing circuit where needed.
Boiler replacement
When repairing no longer makes sense: written quote for a condensing boiler, removal of the old one, connection, commissioning and first certificate.
07 — Commitment
What will never appear on your invoice
The number one complaint about repair firms is the line nobody saw coming. Here are the ones we rule out.
Document · Commitment
- 01No boiler replacement proposed when a priced repair will do.
- 02No part ordered without its price being stated.
- 03No service invoiced without a certificate handed over.
- 04No seasonal surcharge: the October fee is the May fee.
Signed: FUSE SOLUTIONS SRL · VAT BE 1027.949.184
Appointment
Emergency or appointment in Overijse
If it is urgent, call. If it can wait, pick a day and time in Overijse: the slot is confirmed straight away.
Contact
A quote for Overijse? Call us.
Describe the situation in three fields. We come back to you with a slot and a price for Overijse.
Price stated before the call-outinfo@fuse-services.be
We also work around Overijse
- Heating engineer for Huldenberg and around2.5 km
- Heating engineer: call-out in Hoeilaart6.4 km
- Heating engineer in La Hulpe6.6 km
- Heating engineer — Rixensart6.7 km
- Heating engineer in Wavre (1300)6.8 km
- Heating engineer in the municipality of Tervuren7.0 km