DIY Bifold Door Roller Replacement The bifold roller is the most frequent failure issue in doors that fold internally. A simple DIY fix is available to solve the issue. The rollers are made of stainless steel and are resistant to breakage. They are easy to install using the included hardware. https://bifolddoorrepairsnearme13662.laowaiblog.com/29760647/why-we-why-we-bi-fold-door-repairs-near-me-and-you-should-too