How to Repair Bifold Door Top Roller Guide If your bifold doors are squeaking to the wall, they might require some maintenance. You may have to clean, lubricate or adjust them. The problem may be caused by loose screws on the top pivot or the top guide roller. This kit https://bifoldingdoorrepairnearme48343.dsiblogger.com/63577954/20-interesting-quotes-about-bi-fold-door-repairs