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Are you tired of having to stand up to open the door to your pet. A cat flap could be the solution. Pet-flap fitters are able to install them on any type of door that is available, including uPVC or composite doors. They can also be installed in some types of wall. Security It is common to see cat flaps installed into doors, however there are many who have them installed into windows or double-glazed doors. If you don't have a wood door