Bi Fold Repairs - How to Properly Maintain and Repair Your Bi Fold Doors Bi-fold doors can be difficult to open, and some may even allow drafts. This is often because the hardware is falling out of alignment over time. Restoring your bi-fold doors in line is usually pretty simple. https://replace-bifold-doors59219.ttblogs.com/10018857/so-you-ve-bought-bi-fold-door-repair-now-what