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If you're planning to put in a cat flap in your home, it is recommended to hire a professional tradesperson. DIY projects usually result in poorly fitting pet flaps that could let in draughts or increase energy bills. SheffLOCK can be fitted as a cat flap in most types of doors including wood composite, uPVC and glass doors, as well as external walls. It takes about two hours to put in a new cat flap. The cost of the pet flap A pet flap is a gr