Thermal insulation
Energy-efficient renovations of old buildings are subsidized
The subsidies amount to CHF 2,000 to CHF 200,000 and are calculated depending on the individual components and their surface area. The amount of the expected subsidies can be estimated using the table below. Subsidies are only paid once for each category of measure.
Only buildings (areas of permanently heated rooms) with a building permit issued before March 30, 1993 are eligible for subsidies.
Funding application
The funding application and the power of attorney must always be submitted in full and on paper, including all enclosures. Submissions by e-mail are not sufficient. The content of applications will only be processed once the application documents have been received in full.
Förderantrag Wärmedämmung (PDF), gültig ab 01.02.2026
| a.) Wall and floor components exposed to external air | 100.- CHF/m2 |
| - U-Wert ≤ 0.2 W/m2K und | |
| - Fenstersanierung od. Bestehende Fenster Uw ≤ 2.0 W/m2K | |
| b.) Windows / external doors | 100.- CHF/m2 |
| - Uw ≤ 1.1 W/m2K und Ug ≤ 0.7 W/m2K und | |
| - Aussenwandsanierung od. bestehende Wand U-Wert < 0.4 W/m2K | |
| c.) Roof | 100.- CHF/m2 |
| - U-Wert ≤ 0.2 W/m2K | |
| d.) Ceiling to unheated space (attic floor) | 50.- CHF/m2 |
| - U-Wert ≤ 0.25 W/m2K | |
| e.) Internal wall to unheated space | 50.- CHF/m2 |
| f.) Wall / floor to ground or unheated space | 50.- CHF/m2 |
| - U-Wert ≤ 0.3 W/m2K bzw. 0.2 W/m2K zu Erdreich | |
| - U-Wert ≤ 0.25 W/m2K zu Erdreich bei Bodenheizung | |
| - U-Wert ≤ 0.4 W/m2K zu unbeheizt |
- Only new installations and materials that comply with the current state of the art may be used.
Minimum subsidy amount The subsidy measure must be extensive enough to reach the subsidy amount of CHF 2,000.
Extensions and conversions/changes of use In the case of conversions, only existing areas that are being renovated to make them more energy-efficient are eligible. In accordance with Art. 4 Para. 2a EEG, measures are not subsidized if they are mandatory due to other legal regulations. This applies to the construction of new areas (e.g. extensions or roof extensions) and changes of use from previously unheated rooms to newly heated rooms (e.g. attic or shed to new residential use).
Year of construction Only buildings with a building permit prior to March 30, 1993 are eligible.
Start of Construction – Forfeiture of Entitlement The entitlement to receive funding grants lapses if the measures are commenced before a legally binding approval of the funding has been issued.
Project Author / Planner Funding grants are only paid out if competent planning and professional implementation of the measures are ensured.
Time Limit In accordance with Art. 25 of the Energy Act (EEG), the funding approval is subject to a time limit. The measure must be started within one year of the decision on the granting of funding and completed within two years.
Mandatory Other Provisions The measure is not subsidized if it is mandatory due to other legal regulations in accordance with Art. 4. para. 2a) EEG (e.g. development plan, air conditioning, swimming pool heating, conversion, etc.).
Repeat Funding Funding grants are awarded only once per measure; repeat funding of the same measure is only possible after a period of 20 years has elapsed.
For the assessment of any potential funding after 20 years, the original funding approval date is decisive.