Bi Fold Repairs - How to Properly Maintain and Repair Your Bi Fold Doors Many bi fold doors become difficult to open and might even allow a draft. The hardware could be out of alignment over time. It's generally fairly simple to get your bi fold doors back on track. https://bifoldingdoorrepairnearme50986.webbuzzfeed.com/31034031/this-is-the-advanced-guide-to-bi-folding-door-repair-near-me