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How to Replace UPVC Window Handle When replacing the window handle made of UPVC, the first thing to think about is the kind of handle and lock that you currently have. The handle that is in-line with Espagnolette is a standard choice that can be fitted to any UPVC window that is equipped with a crank system (where handing is applicable). They include a small screw or pin that holds the spindle. You can remove by opening the window and twisting 90 degrees. Spindle To replace upvc window handles, you mus