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Bi Fold Repairs - Save Money and Keep Your Home Secure If your bifold doors are hard to open or let in drafts, it's likely that their hardware has degenerated and needs repairing. Ignoring this problem can result in costly repairs. No matter if your external or internal bi fold doors are glass or solid, they are prone to wear and wear and tear. Regular maintenance can reduce the damage. Locks Bi fold doors are gorgeous and functional as a perfect addition to any home. Like every other door or windo