https://hoffman-gardner-2.tech....netbloggers.de/cat-f
uPVC door panels offer a long-term solution to composite doors. They are strong energy efficient, durable, and fireproof. They are also inexpensive and easy-to-maintain. The most convenient way to insert a cat flap into a uPVC panel is to order an extra double-glazed sealed unit with a premade hole for the cat flap. This is more secure than cutting a hole in an existing glass panel. UPVC Doors are easy to maintain Unlike traditional wooden doors, uPVC doors don't require frequent painting or sand