Redlinger Bros. Plumbing & Heating Company started in Watertown on April 1, 1946, shortly after World War II, when brothers Howard and Clark Redlinger re-opened the family plumbing and heating business originally started by their father, Orson. A branch office opened in 1960 in Yankton. The Aberdeen office opened in 2003 and in 2011, Redlinger Bros. added its newest location in Sioux Falls. Howard's son John worked at Redlinger Bros. from 1974 to 2002. Jim C. Redlinger joined the firm in 1981 and serves as the current president.