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If you want to allow your pet to go and come as they please without opening the door, you can put in a cat flap. You should employ a professional to install the cat flap. They can help you navigate the complexities of fitting different types of cat flaps into different doors and walls. Installation With a cat flap, your pet can enter and out of the house at any time without having to open the door. The range of pet flaps available on the market is huge, including microchip-proof and bite-proof doors to