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Bi Folding Door Repair Tips Bi-fold doors enable you to fully open up a space and connect indoors to outdoors. They are great to let the sun and fresh air in, but they must be maintained in a timely manner to prevent damage. You may encounter a number of problems with your bi-folding door. Fortunately, they are usually easy to repair. Cracked Pivot Pins You may have noticed that the bi-folding doors of your home are scraping across the bottom in the event that you've instal