Entech Sales & Service provides a wide range of services for commercial and industrial buildings. The company has expertise in mechanical services, building automation, energy management, card-access systems, closed-circuit television, elevator control, lot supervision, alarm monitoring and system integration. It performs current testing, vibration analysis, water treatment, and air and water balancing. Entech offers rebuilt air- and water-cooled equipment, as well as cooling towers. The company s line of accessories includes flexible ducts, air handlers, dehumidifiers, transformers, pumps, cooling towers and fuel tanks. It also has an inventory of cooling units and generators for rent. Entech Sales & Service is a diversified organization with offices in several key Texas cities, including Farmers Branch.