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You'll need to hire an installer for your cat flap for installing an animal door on your uPVC or glass panel. They can also help with more sophisticated models, like microchip pet flaps. DIY attempts to install a pet flap can often cause problems such as draughts or low energy efficiency. Professional tradespeople can save you from the headache and expense that comes with dealing with these issues. Cost The cost of installing a cat flap could be influenced by a variety of factors. The kind of flap y