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If you would like to allow your pet to go and come as they please without opening the door, you can put in an animal flap. However, you must hire a vetted professional to install one. They can help you navigate the complexities of putting different kinds of cat flaps to different doors and walls. Installation A cat flap lets your pet to move around the house whenever they want without having to open the door or window for them. There are a variety of pet flaps that are available including microchip-reading and bite-proof d