https://zenwriting.net/seederb....oard9/fit-a-cat-flap
If you're planning to put in a cat flap in your home, it is recommended to hire an expert tradesperson. result in poorly fitted pet flaps that let in draughts or increase the cost of energy. SheffLOCK is able to put cat flaps on all types of doors, including wood, glass, uPVC composites and even exterior walls. It takes about 2 hours to install a cat flap. The cost of the pet flap A pet flap lets your cat to go and come whenever it wishes. If the flap is not properly installed, it will allow heat to escape from you