Gil Haugan Construction, Inc. is a second generation, family owned commercial construction firm located in Sioux Falls, South ... Dakota which serves the entire Midwest. Since 1960, we are as proud of the strong relationships we have built as the buildings we have constructed. Professional services with an emphasis on quality is our hallmark. Services include: General Contracting, Design/Build, Construction Management and Steel and Precast Erection for Industrial, Commercial and Institutional projects. In addition, GHCi is a Concrete Specialist and offers Concrete Laser Screed Service. read more