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Bi Fold Repairs - Save Money and Keep Your Home Secure If your bi-fold doors aren't easy to open or allow drafts, it's likely that the hardware has degraded. It is in need of repair. Ignoring this problem can lead to expensive repairs. Wear and tear is a concern for all bi-fold doors, whether they are glass or solid. Regular servicing will help minimise the risk of damage. Locks Bi fold doors are stunning and practical additions to any home. As with any windows or doors, they may become damaged or misaligned