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You could consider installing a cat flap on the door made of upvc if you want to allow your pet to go inside and out of the house without fearing that they will leave unwanted "gifts". This option is less expensive than replacing the entire door and is simpler to install. While is possible to install a cat flap in your own uPVC door, it is important to be aware that this is a difficult job and could lead to costly errors. Easy to install If you have a cat or dog in the house, it's important to be able to let them into and