https://clinfowiki.win/wiki/Po....st:Using_a_Cat_Flap_
If you want to install a cat flap in your home, it is best to hire a professional tradesperson. DIY projects usually result in poorly fitted pet flaps that let in draughts or increase the cost of energy. SheffLOCK can be installed as a cat flap in most kinds of doors like wood composite, uPVC, composite, glass doors and even external walls. It takes approximately two hours to put up the new cat flap. Cost of pet flap A pet flap allows your cat to go and come whenever it wants. If the flap isn't properly installed, it cou