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Bi Folding Door Repair Tips Bi-fold doors are a great method of connecting your indoors and outdoors. They are perfect for letting sunlight and fresh air in, however they need to be maintained in a timely manner to prevent damage. There are a variety of common issues that you may face with your bifold door. Fortunately, they are usually easy to fix. Cracked Pivot Pins If you've recently installed carpeting or changed the floor material in your home, you might be noticing that your bi-folding doors scrape along the bottom. Luck