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You could consider installing a cat flap onto a upvc panel door in order to let your pet go inside and out of the home without worrying that they'll leave behind unwanted "gifts". This option is less expensive than replacing the entire door and is simpler to install. It is possible to set up an animal flap on your own uPVC doors, but it is a tricky task that can lead to costly errors. Easy to install When you have a pet or a cat living in