The surcharge for triple glazing instead of double glazing is €21,750 gross + approx. €500 energy consultant for the KfW application, so €2,250 additional costs, but fully eligible for 15% funding (€3,250), so the whole thing is worthwhile even without considering heating costs. Then the triple glazed ones will be.
The offer is then a total of €21,750 (-€3,250 funding) for the following elements, Kömmerling profiles, Siegenia fittings, anthracite outside, white inside, including removal, installation, disposal. Can anyone assess the price? So far, unfortunately, I have not received a comparison offer ...
It is a small (very reputable and recommended to me) carpentry ...
