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It is recommended to hire an professional to install a cat-flap inside your home. DIY jobs usually result in poorly-fitted pet flaps which allow draughts and lead to more energy costs. SheffLOCK can fit the cat flap into all kinds of doors like wood composite, uPVC and glass doors and even external walls. It takes approximately 2 hours on average to put in a new cat flap. Cost of the pet flap A pet flap is a great method to allow your cat to leave and come whenever it wants. If the flap is not properly installed, it wil