Purchase decision small semi-detached house 100 sqm from 1930

Offer for the blown-in insulation is 350 € net per cubic meter of material + labor costs of 57 € / hour for sealing work or similar. I will commission this - and expect total costs of 5,000 € - 6,000 €.

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 ...

Are these only the windows or also new blinds and motors?

The offer includes all roller shutters and radio motors. Prices are gross.

Relatively cheap nowadays, in my opinion. I paid something similar. Although I had larger, sometimes significantly larger windows, but only 11 and no HS door. However, partly venetian blinds but almost two years ago.

The lift-and-slide door is by far the most expensive item at almost €5,000. However, I will have a parallel tilt-and-slide door offered to me. That one is also space-saving. If it is €2,000 cheaper, then that’s what it will be.