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A through-wall cat flap allows your pets to come out and in whenever they like. But, you should be careful not to place it too high on the wall. This could result in energy loss and also the possibility of burglars breaking into your home. A cavity with a hole can also be a problem for future owners if you intend to sell your house. Glass cat doors are a much safer choice. Easy to install A wall-to-wall cat flap is a great method to allow your cat to move around as it pleases. It is easy to install and there are a variety o