Is your home EPC-rated E or F?
You are required to renovate to label C within 5 years — we handle the entire project.
Since 1 January 2023, the Flemish government requires every buyer of a residential property with EPC label E or F to renovate it to label C (or better) within 5 years of purchase. Non-compliance = administrative fines of €500 to €200,000.
English-speaking service available for expat clients in Brussels and EU institutions.
Calculate your deadline
When did you buy your home?
What does the law say? — Flemish EPC renovation obligation
In 3 points
Who?
Anyone who has bought (or inherited) a residential property with EPC label E or F since 1 January 2023.
When?
Within 5 years of the deed. Bought in 2023 → deadline 31/12/2027. 2024 → end of 2028. 2025 → end of 2029.
Consequence?
Administrative fine of €500 to €200,000. The obligation follows the property on resale.
From label E to C — in one renovation project
The 4 pillars that make the biggest difference
Heat pump
1–2 label jumps
Replaces your gas or oil boiler with a sustainable system using up to 75% less energy.
Subsidy up to €8,000
Typical: €18,000–€28,000 before subsidy
Insulation
1 label jump
Roof, wall or floor — with the heat pump, the biggest lever for EPC score.
Subsidy up to €5,750
Typical: €4,000–€15,000
Carried out by trusted partners — we can recommend one.
New windows
0.5 label jump
High-performance double glazing + insulated frames = fewer drafts and less heat loss.
Subsidy up to €5,250
Typical: €8,000–€20,000
Ventilation
EPB-compliant
System D with heat recovery = healthy air without heat loss.
Mandatory on renovation
Typical: €4,000–€7,500
Which subsidies do you get in 2026?
Mijn VerbouwPremie — Flemish government — based on your income
| Works | Cat. 4 (modest) | Cat. 3 | Cat. 2 | Cat. 1 (higher income) |
|---|---|---|---|---|
| Heat pump air/water | €6,000 | €4,500 | €1,500 | Removed 1/3/2026 |
| Heat pump geothermal | €8,000 | €6,000 | €4,000 | Removed 1/3/2026 |
| Hybrid heat pump | €4,000 | €3,000 | €800 | |
| Heat pump water heater | €1,200 | €1,050 | €450 | |
| Roof insulation | max €5,750 | max €4,025 | €16/m² | €8/m² |
| Wall insulation | max €5,000 | max €3,500 | 7.5–22.5 €/m² | 5–15 €/m² |
| Windows & glazing | max €5,250 | max €3,675 | €64/m² (max 20m²) | €30/m² (max 20m²) |
Case study: Family V. in Grimbergen
From EPC label E to C in 7 weeks
Situation
Family of 4, home built in 1978, bought in June 2023 for €385,000 — EPC label E (368 kWh/m²). Renovation-obligation deadline: 31 December 2027.
Approach
- Replace oil boiler with an air/water heat pump (Buderus)
- Attic-floor insulation, 22 cm PUR
- System D ventilation with heat recovery
Result
"Ecowatt took care of everything — quotes, subsidy applications, site coordination. Seven weeks and it was done." — V.
Why choose Ecowatt?
Buderus System Partner
Extended warranty on your Buderus installation available as a paid option, on request.
2 locations
Vilvoorde HQ + warehouses in Eppegem and Evere — fast on site.
20+ years experience
Senior technicians hold RESCert — we can issue the official certificates needed to unlock regional subsidies.
Subsidy tools & guidance
Calculator, regional overviews, clear eligibility — we guide you through. You file it (we'll handle it for you soon).
Active throughout the Brussels–Mechelen–Leuven triangle, with priority service in Vilvoorde, Zaventem, Grimbergen, Mechelen, Zemst, Kortenberg, Leuven and all 19 Brussels municipalities.
English-speaking technicians available for the expat community in Brussels and EU institutions.
Frequently asked questions
Free on-site visit + renovation plan
At your home within 7 days — no commitment, tailored, with subsidy calculation.
- Current EPC analysis + target label
- Heat pump + insulation + ventilation proposal
- Full subsidy calculation
- Quote within 14 days of visit
Information updated: April 2026 · Subsidies per Mijn VerbouwPremie 2026 (Flemish Government).