https://blogfreely.net/baconla....ke6/cat-flap-fitters
uPVC door panels offer a long-term alternative to composite doors. They are durable, effective and resistant to fire. They are also inexpensive and easy-to-maintain. The purchase of a double-glazed, sealed unit that has already cut a hole for the cat flap is the most convenient way to install an animal flap inside a uPVC sheet. This is safer than cutting a hole into an existing glass panel. UPVC Doors are easy to maintain Unlike traditional wooden doors, uPVC doors don't require frequent painting or sanding. They are also energ