A2B

building and facility operations and maintenance services, namely, building maintenance and repair of heating, ventilation, and air conditioning (HVAC) systems; equipment maintenance and repair, preventative maintenance of energy systems and equipment in buildings and industrial facilities, service and maintenance of heating, ventilation, air-conditioning (HVAC) systems, fire safety, environmental controls, building automation and controls, and security equipment; installation, repair and retrofitting of building automation and control systems; testing, adjusting, and balancing (TAB) services, namely, air and water balancing, duct pressure testing, sound and vibration measurements, indoor air quality services, fire-life safety testing; comprehensive preventative maintenance services for electrical, mechanical, environmental [ and sanitary ] systems of buildings and industrial facilities; consulting services in the field of maintenance and repair of buildings and industrial facilities