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Double-glazed cat flaps let your pet to go in and out of the house without restriction. This can reduce stress, increase their feeling of freedom, and encourage active play and exploration. The pet flap hole is cut during manufacture and installed in new uPVC windows and doors. However, it should not be installed in existing glass that is tempered. Cost If you are considering installing an animal flap on your double glazing, it's important to think about the cost of installation. This will depend on the type of door you pick and h