Guerriere & Halnon Inc. undertakes all facets of surveying, civil engineering and site planning. The company serves government agencies, industrial, commercial, and residential developers as well as private landowners and design firms. It provides a wide range of surveying services, including computer-aided design and drafting (CAD), hydrographic, retracement, condominium conversion, construction layout and geographical information system (GIS). In addition, Guerriere & Halnon Inc. offers sanitary engineering, computer plotting, consulting and Haz-Woper surveying. Some of its projects include Bungay Brook Golf Club, The Home Depot, Outback Steakhouse and Milford Regional Medical Center.