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Bi Fold Repairs - Save Money and Keep Your Home Secure If your bifold doors are hard to open or allow drafts, it's likely that the hardware is degraded and requires repairing. Ignoring these problems can cause a large repair bill. If your exterior or internal bi fold doors are glass or solid, they are prone to wear and tear. Regular maintenance will help minimize damage. Locks They're a stunning and practical addition to any home. Like any other door or window they may become misaligned or damaged over time. You