How to Repair Bifold Door Top Roller Guide If your bifold doors have become stuck, they probably require some maintenance. You may need to clean, lubricate or adjust them. The issue could be caused by an unfastened screw on the top pivot or the top roller guide. This kit comes https://repairing-bifold-doors36278.blogadvize.com/37413152/why-you-should-focus-on-enhancing-bi-fold-door-repairs