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How to Repair a Composite Door Composite doors are extremely robust, however they can have issues. Most of the time, these problems can be easily resolved through simple maintenance and periodic inspections. It's usually enough to tighten the hinges or add longer screws to get them back in position. Make sure to flush the drainage holes regularly. Draughts Composite doors are energy efficient, offer high levels of security, and may develop draughts over time. This is due to the gaps between the frame and the