How to Prepare for Your EPC Inspection in Brussels

Document checklist, property access tips and advice to optimise your energy score. Everything you need to know before the audit by your certified EPC assessor.

Updated 13 March 2026
30 min
Studio/apartment visit
8
Documents on the checklist
24-48h
Delivery time
10 years
Validity

Contents

  1. Documents to prepare
  2. Preparing access to the property
  3. What improves your EPC score
  4. The day of the visit
  5. After the visit
  6. EPC prices in Brussels
  7. Frequently asked questions

Good preparation = a better EPC score. Here is everything you need to know.

1. Documents to prepare before the visit

Without documents, the assessor applies unfavourable default values. Here are the 8 documents you should have ready:

Building plans Architectural plans showing surface areas and wall thicknesses
Insulation invoices Roof, walls, floors, windows (with technical data sheets)
Technical data sheets for materials Lambda value of insulation material, glazing type
Heating compliance certificate Boiler type, output, year of installation
Window invoices Glazing type (single, double, triple)
Ventilation certificate Mechanical ventilation system if present
Solar panel certificate Installation certificate and output
Planning permit For major renovations

Warning: default values

Without proof, an insulated wall is treated as uninsulated. Result: -1 to 2 labels on your score.

2. Preparing access to the property

Ensure smooth access to all areas for a quick and complete audit.

The boiler

Clear the technical room, note the make and model

The loft

If the insulation is visible, this is a bonus for your score

The cellar / basement

To check the floor insulation

All rooms

Including bedrooms, bathroom and utility room

The meters

Electricity and gas

The windows

The assessor checks the glazing type

Visit duration

30 min for a studio or apartment, 45-90 min for a house.

Rented property? Rights and obligations

Send a written notice to the tenant before the visit. If refused, a justice of the peace can compel access.

3. What improves your EPC score

These are the elements with the most impact on your energy label (A to G).

High impact

Roof insulation25-30% of heat escapes through the roof
Heating typeA modern condensing boiler significantly improves the score
Double / triple glazingReplacing single glazing has a major impact
Wall insulationInterior or exterior

Moderate impact

Floor insulationOften overlooked but counted in the calculation
Mechanical ventilationEspecially with heat recovery
Solar panelsPhotovoltaic or thermal
AirtightnessBlower door test if available

Works before the audit

Complete your works before the audit for a better score. See priority works →

4. The day of the visit: how it works

Typical flow of the EPC audit at your property.

Welcome the assessor Present the gathered documents (plans, invoices, technical data sheets)
Walk-through of the property The assessor measures surface areas, identifies materials and checks insulation
Systems inspection Heating, domestic hot water, ventilation
Photographs Taken to document the official report
Questions Use the visit to ask about possible improvements

5. After the visit: your EPC Certificate

Certificate delivered within 24 to 48 hours. You receive:

Official certificate in PDF

Registered with Brussels Environment

Unique verifiable code

Verifiable online by anyone (buyer, tenant, notary)

Personalised recommendations

Tips to improve your energy score

Valid for 10 years

Required for every sale or rental in Brussels

EPC Certificate prices in Brussels

Fixed prices, no hidden costs.

Property type Price incl. VAT
Studio / Room€ 125
Apartment < 100 m²€ 165
Apartment 100-150 m²€ 195
Apartment 150-200 m²€ 225
Duplex / Triplexfrom € 225
House 151-200 m²€ 245
House 201-250 m²€ 265
House 251-300 m²€ 285
House 300-400 m²€ 325
Building < 3 units€ 305
Building > 3 unitsOn request

AL Energy tip

Site visit + analysis + official certificate + registration included. No hidden costs. All our prices → | EPC Certificate Brussels →

Estimate your EPC price

Select your property type to find out your price.

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Frequently Asked Questions — EPC Preparation

What documents should I prepare for the EPC inspection?

8 documents: plans, insulation invoices, technical data sheets, heating certificate, window invoices, ventilation certificate, solar panel certificate, planning permit. Full checklist ↑

How long does an EPC inspection take?

30 min for a studio or apartment, 45-90 min for a house.

What happens if I don't have all the documents?

The assessor applies unfavourable default values. An insulated wall without proof is treated as uninsulated. Potential loss: 1 to 2 labels.

Does preparation affect the EPC score?

Yes. With the right supporting documents, the assessor uses actual values instead of default values, directly improving your score.

What does the EPC assessor check during the visit?

Insulation, windows, heating, ventilation, solar panels, surface area of each room + photographs. Full process →

What do I receive after the EPC inspection?

Within 24 to 48 hours: official PDF certificate with verifiable code, energy label (A to G) and recommendations. Valid for 10 years.

We cover the entire Brussels-Capital Region

Browse our pages by property type:

Apartment House Studio / Room Building

We cover all 19 municipalities:

Brussels City (1000) Schaerbeek (1030) Etterbeek (1040) Ixelles (1050) Saint-Gilles (1060) Anderlecht (1070) Molenbeek (1080) Koekelberg (1081) Berchem-Sainte-Agathe (1082) Ganshoren (1083) Jette (1090) Evere (1140) Woluwe-Saint-Pierre (1150) Auderghem (1160) Watermael-Boitsfort (1170) Uccle (1180) Forest (1190) Woluwe-Saint-Lambert (1200) Saint-Josse (1210)

Ready for your EPC Certificate?

Appointment within 48 hours across the 19 municipalities of Brussels. Certificate delivered within 24 hours.

+32 233 233 20
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