How to Repair Bifold Door Top Roller Guide If your bifold doors are squeaking to the wall, they might need a little maintenance. They could require cleaning and lubricated or adjusted. The issue could be caused by an unfastened bolt on the top pivot or by the top guide roller. https://bifold-door-repair-near-m22309.blogolenta.com/27389043/20-interesting-quotes-about-bi-fold-door-repairs