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How to Replace UPVC Window Handle When you are looking to replace windows made of UPVC, the primary thing to consider is the kind of handle and lock that you have. The handle that is in-line with Espagnolette is a standard choice that will fit any UPVC window with a cranked system (where the handing is appropriate). You can remove the spindle by opening the windows 90 degrees and rotating the pin or screw. Spindle The first step in replacing upvc window handles is to make sure that the new handle is compat