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uPVC panels are a strong and long-lasting alternative to composite doors. They are durable, effective and resistant to fire. They are also inexpensive and easy-to-maintain. Ordering a double-glazed sealed unit that has a hole already made for the cat flap is the easiest way to install the cat flap on a uPVC sheet. This is much safer than trying to cut the hole in an existing glass panel. UPVC doors are easy to maintain Unlike traditional wooden doors, uPVC doors don't require frequent painting or s