How to Repair Bifold Door Top Roller Guide If your bifold doors have become stuck and squeaking, they may require some maintenance. They may require cleaning, lubricated or adjusted. The issue could be caused by loose bolts at the top pivot or by the top guide roller. This kit contains https://bifold-door-glass-replace05174.bloggazza.com/29778595/4-dirty-little-tips-on-bi-fold-door-repairs-and-the-bi-fold-door-repairs-industry