https://opensourcebridge.scien....ce/wiki/Cat_Flap_Cov
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It is best to employ an professional to install a cat-flap in your home. result in poorly fitting pet flaps that can let in drafts or increase the cost of energy. SheffLOCK can install a cat flap on all kinds of doors, including wood, glass, uPVC composite and even on external walls. It takes about two hours to install the cat flap. The cost of the pet flap A pet flap is a great option to let your cat leave and come at will. If the flap is not installed correct