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How to Fix a Bifold Doors Top Pivot Bifold doors can be a great option for creating seamless transitions between indoor and outdoor spaces. Like any door, bifold doors can have problems. is easy to fix the bifolding door. It's usually as simple as loosing the screw and then adjusting the height. Fixing the hinges Bifold doors are a great way to open up a space and letting more light. They usually fold ba