During World War II, the stained glass windows of the United States were neglected as the metal and glass that would normally be used for their repair was rationed for the war effort. In 1946, recognizing an opportunity to aid many of these churches, James E. Hauser founded the Hauser Art Glass Company in Winona, Minnesota.

The company specialized in serving small, remote churches. James guided the company on a steady growth pattern. Glass artists specializing in replicating different design styles joined the studio as the company's projects became larger and more complex. In 1960, Hauser Art Glass began creating moderately priced windows for neighborhood churches as well as windows for hotels, restaurants, and private homes.

In 1977, Willet Studios became a division of the Hauser Art Glass Company. In 1994, James E. Hauser retired, however, the tradition of excellence continues as his two sons, James A. Hauser and Michael Hauser lead the company in developing new and innovative opportunities.

For example, the company changed its name in 2005 to Willet Hauser Architectural Glass to more accurately reflect the long-term direction of the business.