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How to Fix Common Bi Folding Door Repair Problems Bi-folding doors allow for an effortless transition between outdoor and indoor spaces. In time, they will be worn out and require repair. There are several ways to fix your bi-folding doors. Here are some of the most common issues and solutions: Misalignment. Misalignment A misalignment could be the reason of the bi-folding doors being capable of sealing properly, or creating drafts in the home. This can be due to the frame's movement in different clim