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How to Repair Bifold Door Top Roller Guide If your bifold doors are sticking and squeaking, they may require some maintenance. It is possible that you need to clean and lubricate them or adjust them. The issue could be caused by loose screws on the top pivot or the top roller guide. This kit contains all the hardware you require to restore your bi-fold wardrobe door to its optimal performance. Take the door off It might seem difficult and difficult to install