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Repairing Bifold Doors Bifold doors are an attractive feature for your home but over time the hardware that holds them together will deteriorate. Cleaning and lubricating the mechanism (including the locks) can keep them running smoothly and efficiently. Of course, the issue is easily fixed. This guide will show you how to fix your bifold doors if they become difficult to open or close. Cracked Pivot Pins A bifold door is made up of a pair of panels that slide on tracks that are installed in th