A Professional cat flap fitter will install your pet door into a door, or the wall. The wall-mounted version is more secure, as an intruder cannot reach through. It also reduces energy bills and helps to prevent draughts. The Tasker will mark the location where the cat flap should be https://www.repairmywindowsanddoors.co.uk/ramsgate-cat-flap-installer-near-me/