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How to Repair Bifold Door Top Roller Guide If your bifold door is squeaking, it's likely that they need some attention. They may need to be cleaned and lubricated or adjusted. The issue could be caused by an unfastened screw on the top pivot or the top roller guide. This kit contains all the hardware you require to restore your bi-fold wardrobe door system to its peak performance. Take the door off It may appear complicated and challenging to put in