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Cat flaps allow your pet to come and go whenever they want, without you having to let them in or out. They also can help to prevent your cat from toileting in the house. Fitting a cat flap in a door panel made of Upvc is much easier than in a glass door, but it will require some expertise and the proper tools. Take a measurement of the door Installing a cat door into a front door could be difficult, but as long as the cat flap is of the correct one and you follow the instructions, it shouldn't be too difficult. We will show you how