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How to Replace UPVC Window Handle When you are looking to replace the window handle made of UPVC, the first thing you need to think about is the type of handle and lock that you own. In-line Espagnolette handles are a standard choice and can be fitted into any UPVC window with an operating mechanism that is cranked (where handing applies). You can remove the spindle by opening the window 90 degrees and rotating the screw or pin. Spindle The first step to replace upvc window handles is to make sure that the new handle is compatible with the type of w