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How to Repair Bifold Door Top Roller Guide If your bifold doors are sticking, they probably require a little attention. They could need to be cleaned or lubricated, or even adjusted. The issue could be caused by loose screws on the top pivot or the top guide roller. This kit includes all the hardware you require to restore your bi-fold wardrobe door to its best performance. Remove the Door It may appear complicated and difficult to set up an internal set of bifold doors however for DI