UPVC panels are a durable and long-lasting substitute for composite doors. They are durable, energy efficient, and fireproof. Additionally, they are inexpensive and easy to maintain. The easiest way to fit the cat flap onto a uPVC panel is to order an extra double-glazed sealed unit with a pre-cut hole https://www.repairmywindowsanddoors.co.uk/chatham-cat-flap-installer-near-me/