https://output.jsbin.com/bukigusele/
You'll need to hire an installer for your cat flap if you want to install an animal door on your uPVC or glass panel. They can also help with more advanced models, like microchip pet flaps. DIY attempts to install a pet flap can often result in problems like draughts or low energy efficiency. Professional tradespeople can spare you from the hassle and expense of dealing with these issues. Cost There are a number of factors that influence the cost of installing a cat flap. The type of flap you select and the type of surface you wish to install it on