Established in 1997, Sierra Insulation Contractors Inc. is a provider of insulation products for commercial and industrial building projects. Based in Ontario, Calif., the company has worked with several contractors for various projects, such as regional shopping centers, theaters, major distribution warehouses, manufacturing plants and other various types of commercial and industrial projects. It is a member of the Insulate America, a national cooperative, providing training programs and buying power to keep us on a competitive level. Sierra Insulation Contractors Inc. uses products from some of the leading companies, such as Johns Marville, Thermafiber and Foam Sales and Marketing. The competed projects of the company include The Burke Historical Office Building, The Home Depot Victorville and Medline Distribution Center.