Our design/build proficiency includes HVAC systems for clean rooms, computer rooms, health care facilities, OR's, new construction, and so much more. Whether you're in need of piping, ductwork, kitchen exhausts, preventative HVAC maintenance, or repair of all makes and models, CAC Mechanical Services Inc. provides value you can trust. CAC Mechanical Services Inc. specializes in the expert service of all types of HVAC and Refrigeration equipment. As a third generation family owned and operated business in Salem, NH and surrounding areas, we continue to set ourselves apart through a solutions based approach.