How to Fix Common Bi Folding Door Repair Problems Bi-folding doors allow for seamless transitions between indoor and outdoor spaces. In time, they will be worn out and require repair. There are a variety of ways to fix your bi folding doors. Here are a few common issues and solutions: https://bifolddoorrollerreplaceme93732.win-blog.com/10600978/from-all-over-the-web-20-fabulous-infographics-about-bi-fold-door-repair