EPB assessors in Brussels and Wallonia: regional approval

What the EPB assessor does

The assessor visits the home, collects the data (insulation, heating, windows and so on) and issues the certificate, which gives the property’s energy class. The more technical proof you provide (invoices, technical sheets), the better the result: the assessor can take into account only what is visible or backed by evidence. After the visit, you receive a provisional version to check before the official certificate is issued, and the certificate then appears within 24 hours in the Region’s register.

The certificate must exist before the property is put on the market, and its energy class must appear in the advertisement. For the obligations and sanctions, see the guide the EPB certificate.

The title and where to check it

Brussels. Brussels Environment approves assessors after a training course validated by an examination. A residential assessor is an individual approved by the Region, with a diploma or a proven experience in energy. The online list is titled “Liste des certificateurs PEB résidentiels (personnes physiques)” and is found through the page find an EPB assessor. You are free to choose your assessor. The register of valid certificates lets you check whether a home already has one.

Wallonia. According to the Walloon public service (SPW Énergie), a legal person can be approved if it has among its staff or collaborators at least one approved residential assessor, bound to it by an agreement. The SPW publishes the full list of residential EPB assessors on its page residential EPB assessors, as a downloadable file.

Flanders. The Flemish agency VEKA approves energy experts (“energiedeskundigen”) for the EPC. Its page says the lists are updated monthly, with type A for residential units and type D for non-residential ones. For the Flemish rules, see vlaanderen.be.

In every case, check the approval number of the professional who visits you, by hand, one professional at a time, on the page of the Region concerned.

Terms of use of the registers. Brussels Environment (legal notice, 1 July 2026), word for word (in French, our translation below):

« L’utilisation des informations contenues sur ce site est autorisée et même encouragée pour autant qu’il soit fait mention de Bruxelles Environnement en tant que source et que les conditions d’utilisation énumérées ci-dessous soient respectées. » — “The use of the information on this site is authorised and even encouraged provided that Brussels Environment is mentioned as the source and the conditions of use listed below are respected.”

« Conformément aux dispositions de la loi du 30 juin 1994 relative au droit d’auteur et aux droits voisins, vous avez le droit de télécharger et de reproduire les informations figurant sur ce site pour votre usage personnel. » — “In accordance with the Act of 30 June 1994 on copyright and neighbouring rights, you have the right to download and reproduce the information on this site for your personal use.”

« Bruxelles Environnement se réserve tous les droits de propriété intellectuelle sur le site ainsi que sur les informations qui y sont mises à disposition, notamment les photographies et les cartes. » — “Brussels Environment reserves all intellectual property rights over the site and the information made available on it, in particular photographs and maps.”

Wallonia (SPW Énergie portal legal notice), word for word: « Sauf stipulation contraire, l’information textuelle ou chiffrée figurant sur le site peut être utilisée gratuitement mais moyennant mention de la source et uniquement pour un usage qui ne soit ni commercial, ni publicitaire. » — “Unless otherwise stipulated, the textual or numerical information on the site may be used free of charge but with mention of the source and only for a use that is neither commercial nor advertising.” The list of assessors comes from the dataset “Liste des acteurs de l’énergie”, whose metadata record reads: « Cette donnée est disponible sous les termes de la licence ouverte CC BY 4.0. Les réutilisations sont autorisées moyennant citation de la source et mention explicite des modifications apportées à la donnée. » — “This data is available under the terms of the open licence CC BY 4.0. Reuse is permitted on condition that the source is cited and any modifications made to the data are explicitly mentioned.” Payotte copies none of these lists.

How Payotte chooses the firm

Payotte selects one firm per municipality, on a published scoring grid based only on public data. For this trade:

• the trade is presented for Wallonia, where companies can be approved and appear on the SPW list; in Brussels the approval is personal, and we read no list of companies for Flanders, so a listing cannot rest on a register of companies there;
• only companies are selected, with a neutral name: no assessor is named;
• the title is displayed on the firm’s own website; the listing reads “declared title, checkable with” the Region and sends you to the list page;
• at most 3 listings per enterprise number;
• the selection is free for the firm and never paid for. An approval number that belongs to a person is not copied onto the listing.

Questions to ask

• What is your approval number, and in which Region? Is the company itself approved (Wallonia)?
• What is the price, including VAT, for my home (surface, type, number of floors)?
• What proof should I prepare for the visit (insulation, boiler and window invoices)?
• When will I receive the certificate, and will there be a provisional version to check?
• What happens if I dispute the class obtained?