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How to Repair Bifold Door Top Roller Guide If your bifold doors are sticking to the wall, they might need a little maintenance. They could require cleaning or lubricated, or even adjusted. The issue could be caused by loose bolts on the top pivot or by the top guide roller. This kit contains all the hardware you require to restore your bi-fold wardrobe door to its optimal performance. Remove the Door It may seem complicated and difficult to install a set of bifold i