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Replacement Window Handle Upvc window handles include a spindle through them, which is connected to the lock mechanism inside the frame. In time, this could become loose, and eventually break. Replacing a damaged or broken window handle is easy and straightforward. Open the window, and then remove all screws (often hidden behind caps made of plastic). The spindle will be revealed. You can cut it to the right length. What's the problem? As time passes, your window handle can begin to sho