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A wall-to-wall cat flap is a great way to allow your pets to come and go whenever they like. However, you should be careful not to place it too high in the wall. This could result in the loss of energy and also allow burglars to enter your home. Additionally, if you're planning to sell your house in the near future having an opening in a cavity wall can be an issue for the new owners. Glass cat doors are a much safer alternative. Easy to install A t