How to Repair Bifold Door Top Roller Guide If your bifold doors are sticking to the wall, they might require some maintenance. You may need to clean, lubricate or adjust them. The problem could be caused by an unfastened bolt on the top pivot, or by the top guide roller. https://repairing-bifold-doors65865.kylieblog.com/31198710/what-s-the-current-job-market-for-bi-fold-door-repairs-professionals