C. H. Koch Plumbing & Heating, Inc. opened for business in the year 1950. Our brave founder, Clarence H. Koch, was grandfathered into the trade by the state inspector when new regulations were implemented. Clarence eventually received his Master Plumber's License after he had taken his exam. Clarence worked diligently as the sole owner of his business until his two sons, John and Clarence (Butch), were ready to join him in the trade. C. H. Koch Plumbing & Heating, Inc. has grown over the years, from servicing the Oshkosh/Omro area to, now, the greater Fox Valley area.