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How to Repair Bifold Door Top Roller Guide If your bifold door is squeaking then it's likely that they need some attention. You may have to clean and lubricate them or adjust them. The problem may be caused by a loose screw on the top pivot or by the top roller guide. This kit comes with all the hardware required to bring your bi-fold closet door system to optimal performance. Remove the Door It may seem complicated and difficult to install an internal set of bifold doors but for those who are DI