Hans-Willi Althen provided us with incredible support during a very difficult time. Calm, clear, reliable, and with great sensitivity – exactly what you would want. He was always available, explained everything clearly, and gave us a great deal of peace of mind. On the day of the funeral, it was very comforting for us to know that our parents were in good hands with him. We are very grateful for his support and can wholeheartedly recommend Hans-Willi Althen.

Craftsmanship with Tradition Althen Carpentry manufactures its own high-quality uPVC windows and doors. We had windows installed by Althen in our residential and commercial building about 25 years ago, and they are still in perfect condition today. And should anything ever go wrong, Althen is on-site immediately to repair or service the windows. In addition to window manufacturing, this traditional carpentry workshop also handles all the usual carpentry work around the house.