Budget planning for second house construction - experiences

I think you have to find a window builder for wood/aluminum windows who predominantly or exclusively sells/installs wood/aluminum. The usual window builders certainly have different material distributions (80% plastic, 20% others). The conditions are also different there.

In our area, there are a few window builders who mainly install wood/aluminum. Then we see the price differences when we compare a wood/aluminum expert with a "normal" plastic window builder.