It does not matter if your windows was burned by a candle unintentionally, the windowhandle does not work or the the windows fall on your head.
All these problem could be solved by Fensterklinik. Even gears from brands which are not more available on the market will be repaired. E.g. Aubi, Sigenia, Roto, Winkhaus.
We guarantee that every window will be repaired!