Overview
A poorly insulated home loses 25-30% of heat through the roof, 20-25% through walls and 10-15% through windows. The result: you're heating the outdoors. Thermal insulation tackles the root cause and delivers up to 30% energy savings in the first year.
High-impact zones: roof (priority #1), façades, triple-glazed windows, floor slabs and basements. Cumulative subsidies up to CHF 5,000–20,000. Immediate comfort gains in summer and winter. Average ROI in 3 to 8 years.
Key leverage: proper insulation reduces the size (and cost) of a future heating system, increases overall subsidies and optimizes any energy renovation. Investing in heating before insulating is money left on the table.
Available programs
Building Programme
FederalReference programme for cantonal subsidies linked to energy renovation of buildings in Switzerland.
CHF 1,000 - 30,000
Federal and cantonal tax deductions
TaxYour energy renovation costs are deductible from federal direct tax and cantonal taxes. Spread over up to 3 tax periods.
Zürich – Energy Funding Programme
CantonalZürich subsidy programme for heating replacement and building envelope improvement.
CHF 3,000 - 40,000
Bern – Energy Programme
CantonalComprehensive Bern programme covering insulation, heating and global renovation with some of Switzerland's highest amounts.
CHF 5,000 - 80,000
Geneva – Eco-Housing Programme
CantonalGeneva cantonal programme for energy renovation with bonus for rental buildings. 2026 envelope: CHF 80 million.
CHF 5,000 - 50,000
Window replacement subsidy
CantonalCantonal aid for replacing windows with triple-glazed models (Uw ≤ 1.0 W/m²K).
CHF 70 - 150
Roof insulation subsidy – Cantonal
CantonalCantonal aid for roof insulation (flat and pitched). Amount per m² varies by canton.
CHF 30 - 60
Wall insulation subsidy – Cantonal
CantonalCantonal subsidy for façade insulation (external walls). Amount per m² depending on canton.
CHF 40 - 80