Founded in 1980, Carstensen Contracting is one of the leading construction companies in the United States. It maintains a staff of more than 80 employees. The company maintains an underground division that offers a range of water and sewer services. Carstensen Contracting provides a variety of construction, installation and design services to the wind power industry. It also offers a range of general contracting solutions, such as planning, budgeting, new construction and renovation. The company provides various concrete work services for streets, sidewalks, curbs, gutters and parking lots. Carstensen Contracting offers a variety of boring, drilling, basement excavation and site preparation solutions. Additionally, it provides remodeling, project management and supervision services.