Calculation example from the municipality
Suppose someone has a house from the 1960s and plans to insulate the floor. This costs approximately 2150 euros for 80m2. If the person applies for the new insulation subsidy, the municipality will contribute the first 750 euros. The government will contribute another 440 euros via the ISDE subsidy. In that case it still costs 960 euros to insulate the floor. According to the municipality, this amount will be recouped in approximately four years.