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A popular option for homeowners, a composite cat flap offers a secure entry point for your pet. It also reduces the risk that unwanted animals will gain access to your home. However, adding a cat flap to your composite door requires experience and knowledge of the door's composition. Any structural modifications could compromise the integrity of the door, and also affect its thermal performance. Include a cat flap to a composite door A cat flap lets your pet move around the house without letting in other animals or cats. It also helps reduce heating