Dunigan Bros., Inc is a family-owned-and-operated heavy civil contractor that has served the water and wastewater industry since 1945. With over 75 years of experience, we have the knowledge, skills, and resources to be able to complete even the most complicated utility projects. We are known for taking on some of the most difficult wet utility projects and take pride in providing the essential utilities that our customers need. We primarily serve government agencies (Cities, States, Counties) providing construction of Sanitary Sewer, Storm Sewer, Water Distribution, Water Transmission, Pumping Stations, and Highway/Roadway construction.