Certificates adapted to your profile

The certificate of competence (for candidates) may relate to one or more of the following seven categories of professional activities:

• Photovoltaic systems, including roof-integrated systems.
• Solar thermal systems for domestic hot water production, including roof-integrated systems.
• Solar thermal installations for combined systems (domestic hot water and heating), including roof-integrated systems.
• Centralised biomass installations (heating and/or domestic hot water), biomass boilers.
• Biomass wood-based decentralised heating stoves for decentralised heating.
• Heat pumps (heating with or without domestic hot water), with the exception of superficial geothermal systems.
• Superficial geothermal systems.

Who is eligible to receive a certificate ?

You can apply for a certificate if you are in one of the following situations.

In Flanders:

• You have been trained in one of the technologies listed above, you have passed the relevant exams, and you have at least one month’s experience in a core profession.
• You are a renewable energy systems installer and hold a foreign certificate. Please apply for recognition of your foreign certificate in Belgium.
• You hold a valid SOLTHERM accreditation. Please apply to convert your SOLTHERM accreditation into a certificate of competence or a candidate’s certificate of competence (no longer possible since 1 January 2016).
• You are a training and/or examination centre recognised by a region and you wish to apply for a certificate of competence for one or more students.

In Wallonia:

• You have been trained in one of the technologies listed above, you have passed the relevant exams, you have at least one month’s experience in a core profession, and you can demonstrate professional eligibility.
• You are a renewable energy systems installer and have a foreign certificate. Please apply to have your foreign certificate recognised as equivalent in Belgium.
• You are a training and/or examination centre recognised by a region and you wish to apply for a certificate of competence for one or more students.

In Brussels:

• You have been trained in one of the technologies listed above, you have passed the relevant exams, you have at least one month’s experience in a core profession, and you wish to obtain a certificate of competence.
• You are a renewable energy systems installer and have a foreign certificate. Please apply to have your foreign certificate recognised as equivalent in Belgium.
• You are a training and/or examination centre recognised by a region and you wish to apply for a certificate of competence for one or more students. To do so, please create an account using the email address of the examination centre and ask RESCert to link the account to the examination centre. You can obtain more information from RESCert on the procedure for submitting an application for certification on behalf of a student by authorisation.

You must meet certain terms and conditions

The candidate’s certificate of competence:

The candidate’s certificate of competence is no longer in use in the Flemish Region (since 1 January 2019), in the Walloon Region (since 21 September 2020), or in the Brussels-Capital Region (since 1 June 2024).

Note: The candidate’s certificate of competence cannot be used for subsidies, and people holding a candidate’s certificate of competence do not appear on the list of certified installers on this website.

Note on heat pumps

If you only have the RESCert certificate for heat pumps, you cannot carry out operations involving fluorinated greenhouse gases or ozone depleting substances. These lead to a risk of emissions from refrigerants (installation, repair, checking for leaks, etc.). Specific accreditation as a category I, II, III or IV refrigeration technician, and accreditation for the refrigeration business, are therefore mandatory. Further information can be found on the following websites:

• For the Flemish Region
• For the Walloon Region
• For the Brussels-Capital Region

Last change: 2 October 2026