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Bi Folding Door Repair Tips Bi-fold doors are an excellent way to connect your indoors and outdoor. They are ideal to let the sun and fresh air in, but they must be maintained in a timely manner to prevent damage. There could be a myriad of issues with your bi-folding door. Fortunately, they are simple to repair. Cracked Pivot Pins You may have noticed that your bi-folding doors are scratching across the bottom if you've added carpeting to your home or changed the