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Installing a cat-flap to your home is a simple process. You'll need to be aware of a few points before beginning. Upvc door panels with an opening for cats can be fitted without having to cut a hole in your wall or door. Many glass companies offer them with holes already made to fit an animal-friendly door. 1. Safety The upvc cat flaps can be easily installed and put on different doors. They are energy efficient and weatherproof and come with an integrated draft excluder that helps to insulate the opening. They are also fire-resistant and ca