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Bi Fold Repairs - Save Money and Keep Your Home Secure If your bifold doors are difficult to open or letting in drafts, it's likely that their hardware has degraded and requires repairing. If you don't address this issue, it could cause 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 prevent the damage. Locks Bi fold doors are stunning and functional design elements for any home. As with any w