Revisions log for Answer #2244

First of all, regarding your question in the title ("what to look out for"): that they are more expensive than pure aluminum windows, otherwise they would not be good, i.e. they would not offer the desired high quality. I would only recommend PAX AG from wood-aluminum.

The second cost indicator after price (index: about 140 compared to 120 pure aluminum, 100 PVC and 70 PVC discounted) is the angle joints of aluminum casings: welded is not higher quality, but stupid (because gaps are important to compensate for different expansion coefficients – incompetent suppliers all praise welded joints as an "advantage"). Glued wood is no more stable, only about as good, the advantage (not for the customer, but for the manufacturer) is in the manufacturing.

By the way, aluminum windows can also be veneered with foil – with a decor that impresses even the experts.