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The installation of a cat flap in solid uPVC door panels or double glazed sealed units is much simpler than it sounds. If you don't have the proper tools or expertise, you'll need to employ a professional. Follow this guide to learn how to measure and mark the space in the uPVC panel for your cat flap. Additionally, learn how to make the flap weatherproof and draft resistant. Safety A upvc panel with a cat flap is a great solution to ensure your pet's security while allowing the