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A double-glazed cat flap enables your pet to go inside and out of the home freely. This can reduce stress levels, boost their sense of freedom, and encourage exercise and exploration. It can be fitted into new uPVC doors and windows, and the pet flap hole is cut at the time of manufacture. However, it shouldn't be installed in existing tempered glass. Cost When deciding to install a cat flap on your double glazing, it's important to think about the cost of installation. The cost of installation will