How to Repair Bifold Door Top Roller Guide If your bifold doors are squeaking and squeaking, they may require a little attention. You may have to clean and lubricate them or adjust them. The issue could be caused by an unfastened screw on the top pivot or the top roller https://bifold-door-roller-replac47182.digitollblog.com/30498335/10-wrong-answers-for-common-bi-fold-door-repairs-questions-do-you-know-the-right-ones