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uPVC door panels offer an alternative for composite doors. They are strong, durable and resistant to fire. Additionally, they are affordable and easy to maintain. -glazed sealed unit with an opening already cut for the cat flap is the easiest way to install a cat flap in a uPVC sheet. This is much more secure than trying to cut holes 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 effici