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Installing a cat-flap to your home is a simple procedure. You'll need to be aware of a few issues before you begin. You can install Upvc panels that have a cat door without having to cut a hole into your door or wall. Many glass companies provide them with holes already made for a pet-door. 1. Safety The cat flaps made of upvc can be easily erected and fitted to a variety of different doors. They are energy-efficient and weatherproof and feature an air-tight seal built-in to he