https://telegra.ph/Cat-Flap-Installers-10-25-8
A through wall cat flap is a great method to allow your pets to leave and come whenever they like. But, should be careful not to install it too high in the wall. This can cause energy loss and allow burglars to break into your home. If you are planning to sell your house in the near future, having an opening in a cavity wall could be an issue for the new owners. Glass cat doors are a safer option. Easy to install A wall-to-wall cat flap lets your cat to come and go whenever it wants. It is easy to install and there are a variety of models