UPVC door panels provide a long-term solution to composite doors. They are strong, energy efficient, and fireproof. Additionally, they are inexpensive and easy to maintain. The most straightforward way to install a cat flap into a uPVC panel is to order an extra double-glazed sealed unit with a pre-cut hole https://www.repairmywindowsanddoors.co.uk/cheltenham-cat-flap-installer-near-me/