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are a strong and long-lasting substitute for composite doors. They are strong, durable and fireproof. They are also affordable and easy to maintain. The purchase of a double-glazed, sealed unit with a hole already made for the cat flap is the simplest way to install the cat flap on a uPVC sheet. This is much more secure than trying to cut a hole in an existing glass panel. UPVC doors are easy to maintain Unlike traditional wooden doors, uPVC doors don't require frequent painting or sanding. They are also energy