Denton Gunther Underground is primarily an underground contractor specializing in storm and sanitary sewer and watermain construction. Launched in 2006, DGU combines the reputation of Gunther Construction with the experience of Bill Hillyer and Mike Hillyer, former owners of Hillyer, Inc., a west central Illinois underground contractor. Denton Gunther underground has experience in the following areas.

By combining Gunther Construction and Denton Gunther Underground all your site work needs can be completed by one organization, increasing efficiency.