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How to Repair Bifold Door Top Roller Guide If your bifold door is squeaking it's likely they require some maintenance. They may need to be cleaned or lubricated, or even adjusted. The issue could be caused by an unfastened screw on the top pivot or by the top roller guide. This kit contains all the hardware you require to restore your bi-fold wardrobe door system to its best performance. Remove the Door It may seem complicated and difficult to install the bifold internal doors however for those