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If you want to install a cat flap in your home, it's recommended to work with a professional tradesperson. DIY projects usually result in poorly-fitted pet flaps which allow drafts and result in more energy costs. SheffLOCK can fit a cat flap on all kinds of doors, including wood composite, uPVC and glass doors as well as exterior walls. It takes around 2 hours on average to put in a new cat flap. Cost of pet flap A pet flap permits your cat to move around whenever it wishes. However, if the flap is not correctly installed, it ma