How to Repair Bifold Door Top Roller Guide If your bifold door is sticking, it's likely that they need some maintenance. They may need to be cleaned or lubricated, or even adjusted. The problem could be caused by a loose bolt on the top pivot or by the top guide https://bi-fold-door-repair-near21566.sharebyblog.com/30593397/10-mistaken-answers-to-common-bi-fold-door-repairs-questions-do-you-know-the-right-answers