https://mozillabd.science/wiki..../Installing_a_Cat_Fl
You're tired of having get up to open the door to your pet. A cat flap may be the solution. Pet-flap installers can put them in any kind of door, regardless of whether it's uPVC or composite. They can also install them in some types of wall. Security Cat flaps are usually used to cover doors, however many install them in windows or double-glazed doors. If you don't have a wooden wall or door, having one installed into glass is a great option. It's an excellent option for people who rent. You'll require a glazier t