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Bi Folding Door Repair Tips Bi-fold doors let you completely open up your space and connect indoors with outdoors. They are great for letting in sunshine and fresh air, however it's important to maintain them properly in order to ensure they don't suffer damage. There are a variety of problems with your bi-folding door. Fortunately, they are easy to repair. Cracked Pivot Pins You may have noticed that your bi-folding doors are scratching along the bottom in the event that you've installed carpe