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uPVC door panels offer a long-term solution to composite doors. They are strong, durable and resistant to fire. In addition, they are affordable and easy to maintain. The most convenient way to insert an animal flap on a uPVC panel is to purchase a replacement double glazed sealed unit that has a pre-made hole for the flap. This is much safer than cutting 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