DIY Bifold Door Roller Replacement The bifold roller is the most frequent failure problem in internal folding doors. The issue is easily fixed by using a simple DIY solution. The rollers are made of stainless steel and are resistant to breaking. They are simple to install using the included hardware. https://bifold-door-seal-replacem35998.bloguetechno.com/10-things-people-hate-about-bi-fold-door-repairs-near-me-65806929