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uPVC panels are a long-lasting and long-lasting substitute for composite doors. They are strong energy efficient, durable, and are resistant to fire. They are also inexpensive and easy-to-maintain. A double-glazed sealed unit with an opening already cut for the cat flap is the easiest method to install a cat flap in a uPVC sheet. This is safer than cutting 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 als