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How to Repair Bifold Door Top Roller Guide If your bifold doors are sticking to the wall, they might require some maintenance. They may require cleaning, lubricated or adjusted. The issue could be caused by an unfastened screw on the top pivot or by the top roller guide. This kit includes all the necessary hardware to restore your bi-fold closet door system to its best performance. Take the door off Installing an interior set of bifold doors could appear to be a complicated and difficult p