https://www.repairmywindowsand....doors.co.uk/halifax-
Replacement Double Glazing Window Handles It is important to replace a damaged double-glazed window handle in order to ensure safety and functionality. uPVC handles work on a spindle which runs through the centre of the handle and into the lock mechanism inside the window frame. You will need to be aware of the step height of your uPVC handle. This can be determined by looking for screw cover caps on the inside of the handle. Tilt Turn In Europe tilt and turn windows are an increasingly popular choice.