We are able to fit cat flaps into almost any type of glass, whether it's single glazing, double glazing, laminated or toughened glass, it's no problem for us! When deciding to get a cat flap installed, it is important to know that in most cases, we will have to replace the existing glass with new glass that has a hole manufactured for the cat flap. For us to be able to cut a hole to facilitate a cat flap, it is also important to know that the glass must be at least 390mm (39cm) in either direction, this is so that once the hole is cut, there is enough glass remaining around the hole to have the strength to hold the cat flap without cracking. When ordering a cat flap installation from us, you have 2 options. We can provide a basic 4-way locking cat flap with our installations on request or alternatively, if you require a micro-chip or magnetic cat flap, we usually advise that you source these yourself as there is such a wide variety of styles and prices that we feel this saves tim