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The addition of a cat flap to your door's panel is an essential task that should be carried out by an experienced professional. These doors typically consist of the plastic exterior, which is thin and flimsy, and then joined to a soft, insulation polystyrene core. These materials can be difficult to cut. It's much easier to install the cat flap inside an existing glass pane or have a new door constructed with the hole already made. A glass glazier can help you. Easy to Fit Upvc door panels are an excellent