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If you want to install an animal flap at your home, it is best to employ a professional tradesperson. DIY projects usually result in a poorly-fitted pet flap, which can let in draughts and lead to higher energy bills. SheffLOCK is able to install a cat flap on all types of doors, including wood, glass, uPVC composites and even external walls. On average, it takes about two hours to install the cat flap. Cost of pet flap A pet flap is a great method to allow your cat to move around at will. If the flap isn't properly installed, it will