Grant for replacing windows and exterior doors

• Work must not be started, nor contract signed, before approval for the grant is given.
• The exterior doors and windows to be replaced must be older than 30 years.
• The U-value (thermal transmittance) of the new doors, including frame/sash and mullions, must be equal to or lower than 0.8 W/m²K.
• The average U-value for the new windows, including frame/sash and mullions, must also be ≤ 0.8 W/m²K.

An U-value is a measure of how efficiently a window or door reduces heat loss.

• Only housing cooperatives and condominium associations registered with an organization number in the Enhetsregister can apply.

For buildings that are listed («gullistet») with the City Heritage Preservation Authority (Byantikvaren), the following applies:

• The average U-value for windows, including frame/sash and mullions, must be ≤ 1.0 W/m²K. Otherwise, the same criteria listed above must be met.
• The application must include a detailed cost quotation for windows and exterior doors, and confirmation that the U-value requirement will be met.

• The support rate for new windows and doors is 20 percent.
• For windows in heritage-listed buildings («Gul liste»), with U-values between 0.8 and 1.0 W/m²K, 15 percent support is given.
• The maximum support sum per housing cooperative or condo association is 2 million Norwegian kroner.

1. Obtain offers (quotations) for new windows or doors from a supplier.
2. The application must include a cost estimate with itemized costs for windows and external doors, and documentation that the U-value requirement will be met.
3. Submit a grant application and attach quotations and supplier documentation of U-values.
4. Submit a final report after the windows and/or doors have been replaced.
5. The grant is paid out after the final report is received and processed by Klimaetaten.