18/09/2025

How to improve your EPB score in Brussels: 10 tips that really work

Why improve your EPB score?

Le energy performance certificate is compulsory in Brussels for any property sale or rental. A poor score can reduce the value of your property and discourage buyers or tenants. Conversely, a good EPB :

  • makes your property more attractive

  • reduces your energy bills

  • increases your everyday comfort

Visit 10 concrete actions to significantly improve your EPB score.


1. Insulate your roof

The roof is responsible for a large proportion of heat loss. Good insulation can save your EPB several letters.
💡 Tip insulation: check the thickness and quality of the existing insulation, and top it up if necessary.


2. Replace glazing with double or triple glazing

Single-glazed windows lower your EPB score. Installing high-performance glazing (HR++ or triple glazing) improves thermal and acoustic insulation.


3. Insulate walls and floors

Insulating walls from the inside or outside, and insulating floors, can significantly reduce energy loss.


4. Install a condensing boiler or heat pump

An old heating system is a negative factor for your EPB score. Replacing your boiler with a condensing boiler or heat pump is a worthwhile investment.


5. Replace or maintain radiators and thermostats

Programmable thermostats and thermostatic valves optimise heat consumption.


6. Improve ventilation

A controlled mechanical ventilation (CMV) system with heat recovery improves comfort while reducing energy losses.


7. Eliminate thermal bridges

Poorly insulated joints (between walls, roofs, floors) lead to significant energy losses. Correcting them can improve your EPB score.


8. Install solar panels

The electricity produced by photovoltaic panels reduces your primary energy consumption, which has a positive effect on your EPB certificate.


9. Keep your invoices and proof

When the EPB expert visits, provide all the documents (invoices, plans, insulation certificates). Without proof, certain improvements will not be taken into account when calculating your score.


Conclusion

Improving your EPC score is a winning investment: more comfort, lower costs and higher resale value.

📞 Need an EPB certificate in Brussels? Contact-Contact us today to schedule your inspection or get a free quote.