Started in 1953, Champion Window Manufacturing Company builds and installs more vinyl replacement windows, storm windows and doors, entry doors patio rooms and siding than any other company in the United States. More than 48,000 homeowners join the ranks of customers on an annual basis. The company operates factories in Cincinnati and Denver. Champion's control over every aspect of manufacturing, distribution, installation and servicing removes all customer concerns about who is responsible for their home improvement project. In 2004, Champion was ranked America's largest window, patio room and door company by Qualified Remodeler magazine. The company operates more than 50 factory showrooms in 25-plus states.