The Home Depot, Inc. operates as a home improvement retailer. It operates The Home Depot stores that sell various building materials, home improvement products, and lawn and garden products, as well as provide installation, home maintenance, and professional service programs to do-it-yourself, do-it-for-me, and professional customers. The company offers installation programs that include flooring, cabinets, countertops, water heaters, and sheds; and professional installation in various categories sold through its in-home sales programs, such as roofing, siding, windows, kitchen and bath refacing, furnaces, and central air systems, as well as act as a contractor to provide installation services to its do-it-for-me customers through third-party installers. It primarily serves professional remodelers, general contractors, repairmen, small business owners, and tradesmen. The company also sells its products through online. As of the September 18, 2015, the company had 2,270 stores located in 50 states in the United States, the District of Columbia, Puerto Rico, U.S. Virgin Islands, Guam, Canada, and Mexico. The Home Depot, Inc. was founded in 1978 and is based in Atlanta, Georgia.