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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. It is possible that you need to clean and lubricate them or adjust them. could be caused by loose bolts on the top pivot or by the top guide roller. This kit contains everything you need to restore your bi-fold wardrobe door to its optimal performance. Take the door off It might seem difficult and difficult to install a set of bifold internal doors however for those who are DIYers wit