What does an EPA assessor do?
An EPA assessor, also called an energy assessor, inspects your home and determines the energy label. They are the only party officially allowed to do so. Below you can read what the assessor does and how to recognise a good one.
Contents
What is an EPA assessor?
EPA stands for EnergiePrestatieAdvies, Dutch for energy performance advice. An EPA assessor has been declared competent and works under a valid certificate to assess energy labels using the NTA 8800 method. For homes that competence is called EP-W, for commercial buildings EP-U.
Only such a person may register the label in EP-Online, the national register that estate agents, notaries and tenants consult. A report from an uncertified party is not an energy label, however professional it looks.
What does an EPA assessor do during the assessment?
The assessment is evidence gathering. The assessor records what is actually present and substantiates it, because without evidence the method applies unfavourable default values.
- Measuring the floor area and the heat-loss surfaces.
- Establishing the insulation of roof, walls, floor and glazing.
- Recording the heating, hot water, ventilation and any solar panels.
- Photographing every element that counts, as supporting evidence.
- Entering it into certified software and registering it in EP-Online.
How do you recognise a good assessor?
Every assessor on this platform is checked before appearing. If you go elsewhere, look for these:
- A valid certificate for the type of building you have.
- A price including registration, with no separate costs afterwards.
- An on-site assessment, not just a questionnaire.
- Reviews from earlier customers you can read.
What does an EPA assessor cost?
Assessors on this platform charge between €199 and €489 for a home assessment including registration. You see the price and delivery time per assessor before you choose.
The EPA assessor in numbers
| What EPA stands for | EnergiePrestatieAdvies (energy performance advice) |
| Competence for homes | EP-W |
| Competence for commercial | EP-U |
| Statutory exclusive right | Only a certified assessor may register in EP-Online |
| Method of working | On-site assessment with photographic and dimensional evidence |
| Calculation method | NTA 8800 since 1 January 2021 |
Frequently asked questions
What is the difference between an EPA assessor and an energy assessor?
In everyday use they are the same. What counts formally is whether someone has been declared competent and works under a valid certificate: only then may the label be registered in EP-Online.
Does the assessor have to visit?
For a home, an on-site assessment is the norm. The assessor has to establish and photograph what is actually present, because without evidence NTA 8800 applies unfavourable default values.
How do I check that an assessor is certified?
Ask for the certificate and its type (EP-W or EP-U) and check that it matches your building. Assessors on this platform are checked in advance.
How long does an assessment take?
According to RVO, about one and a half to two hours on site. The processing and registration follow afterwards.
Sources
The rules and definitions on this page come from the official sources below. Last checked on 24 September 2026.
Checked and certified.
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