In Brussels, the heating technician who comes to your home must hold a certification issued by Brussels Environment to carry out the regulatory checks of your installation. This status of certified PEB boiler technician determines the validity of the maintenance certificate, a document to be kept for five years. Therefore, choosing a heating professional is not just about comparing prices: the legal compliance of the technician directly affects that of your home.
Ban on oil heating in Brussels: an immediate selection filter
Since June 1, 2025, the installation of a new oil boiler is prohibited in the Brussels-Capital Region, including replacing an old device, except for specific exemptions provided by the PEB heating regulations. This measure radically changes the profile of the heating technician to consider for a replacement project.
A professional who still spontaneously offers an oil solution without mentioning this ban is simply not up to date. This is a direct disqualification criterion, even before discussing prices or timelines.
The alternatives mainly involve gas, heat pumps, and hybrid systems. A detailed guide published on the Facefull News website covers the regulatory points to check before signing a quote. This initial screening based on regulatory knowledge eliminates some unreliable service providers.
Periodic PEB checks: frequencies and obligations of the certified technician
The periodic PEB check is a legal obligation in Brussels, and its frequency varies according to the fuel used:
- Every two years for gas boilers and water heaters.
- Every year for oil boilers and solid fuel appliances (wood, pellets).
- The certificate issued must be kept for five years, and a copy is digitally recorded with Brussels Environment.
This framework has a direct consequence on the choice of heating technician: only a certified technician can issue a valid certificate. Maintenance performed by a non-certified technician does not put you in compliance, even if the technical work is correct. In the event of a disaster, your home insurance may refuse compensation if the certificate is missing or comes from an unrecognized technician.
Before entrusting the maintenance of your boiler, ask for the technician’s PEB certification number and verify it on the Brussels Environment portal. This verification takes a few minutes and protects you for several years.
Technical skills according to the type of heating installation
Not all heating technicians master the same systems. A specialist installer in gas condensing boilers may not necessarily have the expertise to size an air-water heat pump or configure a hybrid system combining multiple energy sources.
Gas, heat pump, solar: diverging professions
The installation of a heat pump requires skills in handling refrigerants and precise thermal sizing, under penalty of overconsumption. For gas, the Cerga certification remains a recognized indicator in Belgium, attesting to compliance with safety standards specific to natural gas installations.
Ask the question directly: how many installations similar to yours has the professional completed in the past year? A technician specialized in your type of system reduces the risk of poor workmanship. Interventions on thermal solar equipment or underfloor heating require yet another skill set.
The quote as a skill revealer
A detailed quote mentions the brand and model of the device, the power in kW suitable for the volume to be heated, the type of connection, any necessary flue or drainage work, and the cost of commissioning. A quote that limits itself to a line “boiler installation” without these details reflects a lack of technical rigor.
Check references and customer reviews in Brussels
Recommendations from acquaintances remain the most reliable channel. But when they are lacking, online reviews deserve careful reading rather than just a glance at the overall rating.
Focus on reviews that describe a concrete situation: type of breakdown, response time, behavior in the face of an unforeseen event. Generic comments like “very good, I recommend” provide no actionable information. Also, look for the professional’s responses to negative reviews: how a heating technician handles a dispute says more than twenty positive reviews.
- Check that the technician has an active Belgian company number (BCE), which can be consulted online.
- Request at least two recent references for projects comparable to yours in the Brussels region.
- Compare a minimum of three quotes for the same scope of work, ensuring that each covers the same items.
The warranty on the work and the installed equipment must be clearly stated in the quote. A multi-year warranty on the device is worthless if the labor is not covered, as it is often the faulty installation that causes early breakdowns.
Choosing a heating professional in Brussels relies on three verifications that nothing can replace: valid PEB certification, mastery of the type of installation concerned, and transparency of the quote. With the recent ban on oil heating and the tightening of periodic checks, these criteria are no longer a matter of caution but of legal compliance.