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A cat flap that is built into the wall allows your pets to come out and in whenever they want. You must be careful to not install it too high into the wall. This could result in the loss of energy and also allow burglars to gain entry into your home. A hole in a cavity can also be a problem for future owners if you plan to sell your home. Glass cat doors offer an alternative that is safer. Easy to install A wall-to-wall cat flap lets your cat to come or go as it pleases. There are numerous models a