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uPVC panels are a strong and long-lasting substitute for composite doors. They are durable, energy efficient, and fireproof. They are also reasonably priced and easy to maintain. The easiest way to fit the cat flap onto a uPVC panel is to purchase an extra double-glazed sealed unit with a premade hole for the flap. This is safer than cutting a hole into an existing glass panel. UPVC doors are easy to maintain Unlike traditional wooden doors, uPVC doors don't require fr