Window Replacement Subsidies in Europe

Replacing old single-pane windows with double or triple glazing reduces heat loss by 50-70% through the window surface. While less impactful than roof or wall insulation on the whole-building scale, windows are often the first visible renovation homeowners undertake. Subsidies are available in all 5 countries but typically at lower rates than major insulation works.

Subsidy Comparison by Country

Country	Scheme	Rate	Typical Amount
🇫🇷 France	MaPrimeRenov + CEE	40-100 EUR per window + CEE	500-2,000 EUR per window
🇩🇪 Germany	BEG EM	15-20% of costs	1,000-3,000 EUR
🇮🇹 Italy	Ecobonus 50%	50% tax credit	2,000-6,000 EUR
🇧🇪 Belgium	Regional premiums	Varies by region	500-3,000 EUR
🇪🇸 Spain	PREE	35-65% of costs	1,000-4,000 EUR

Frequently Asked Questions

Should I get double or triple glazing?

In climate zones with harsh winters (northern France, Germany, Belgium), triple glazing offers better insulation (Uw ~0.8 vs ~1.3 for double) but costs 20-30% more. In milder climates (southern France, Spain, Italy), double glazing is usually sufficient and more cost-effective with subsidies.

API Example

Calculate double/triple glazing windows subsidies with a single API call:

curl -X POST https://greencalc.io/api/v1/eligibility/simulate \
  -H "Content-Type: application/json" \
  -H "X-Api-Key: gc_sandbox_demo_key" \
  -d '{"country_code": "FR",
    "household": {"annual_income": 25000, "persons": 3, "owner_status": "OWNER_OCCUPIER"},
    "property": {"construction_year": 1985, "property_type": "HOUSE", "surface_area": 100},
    "works": [{"work_type": "WINDOWS_DOUBLE_GLAZING", "estimated_cost": 15000}]
  }'

Other Work Types

Roof Insulation Heat Pump (Air-Water)Wall Insulation (Exterior)Solar Panels (Photovoltaic)

Try the GreenCalc API

Calculate subsidy eligibility for any EU renovation project with a single API call.

Read the Docs