https://stairways.wiki/wiki/Ad....ding_a_Composite_Doo
Professional cat flap installers can install your pet's door in either a door or wall. This is more secure as the burglar cannot reach through it. It also prevents the spread of draughts and also reduces the energy costs. The Tasker will mark out the position of the cat flap on your door, then drill the corners. They will also smooth the edges of the frame to give it a smooth finish. Microchip cat flaps A microchip cat flap is an easy and effective way to keep your pet safe in your home. It detects the unique microchip number