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How to Repair Bifold Door Top Roller Guide If your bifold door is squeaking, it's likely that they require some maintenance. They could require cleaning, lubricated or adjusted. The problem may be caused by an unfastened screw on the top pivot or the top roller guide. This kit includes all the necessary hardware to bring your bi-fold closet door to its best performance. Remove the Door Installing an interior set of bifold doors might seem like a complex and difficult task however, it's actually easy