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Installing a cat flap on your door is an important task that should be carried out by an experienced professional. These doors are usually made of a plastic exterior, which is then bonded to an insulating, soft polystyrene core. These materials are often difficult to cut. It's much simpler to install a cat flap in an existing pane of glass or have a brand new door made with the hole already drilled. A glazier is capable of doing this for you. Easy to Fit Upvc door panels can be an excellent option if you have a pet cat and would like to let it in an