UPVC door panels offer a long-term solution to composite doors. They are durable, effective and fireproof. They are also affordable and easy-to-maintain. The most convenient way to insert an animal flap on a uPVC panel is to order an extra double-glazed sealed unit with a pre-cut hole for the flap. https://www.repairmywindowsanddoors.co.uk/bexhill-on-sea-cat-flap-installer-near-me/