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How to Repair Bifold Door Top Roller Guide If your bifold door is squeaking it's likely they need some attention. You may need to clean, lubricate or adjust them. The problem may be caused by a loose screw 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 peak performance. Remove the Door It might seem difficult and difficult to set up an internal set of bifold doors however for DIYers with a little experienc