http://brewwiki.win/wiki/Post:....Replacement_Upvc_Doo
The installation of a cat flap in solid uPVC door panels or double-glazed sealed units is much simpler than it may sound. If you don't have the proper tools or no experience, you'll need a professional. This guide will teach you how to mark, measure and cut the cat flap on the uPVC panel. Additionally, learn how to make the flap weather and draft-proof. Safety A upvc door with cat flaps is a great way to ensure your pet's security and still allow them freedom of movement. These panels can be constructed from recycl