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Bi Fold Repairs - Save Money and Keep Your Home Secure If your bifold doors are difficult to open or allow a draft, it is likely that the hardware has degraded. It is in need of repair. If you don't address this issue, it could result in costly repairs. Whether your internal or external bi fold doors are glass or solid, they are vulnerable to wear and tear. Regular maintenance can help reduce damage. Locks Bi fold doors are beautiful and functional additions to any home. Like every wind