DIY Bifold Door Roller Replacement The bifold roller is the most common failure issue in doors that fold internally. A simple DIY fix is available to solve the problem. The rollers are constructed of stainless steel and are resistant to breakage. They are simple to install with the included hardware. https://bifoldingdoorrepairnearme50986.webbuzzfeed.com/31032769/7-things-about-bi-fold-door-repairs-near-me-you-ll-kick-yourself-for-not-knowing