HVAC engineers play an important role in the building industry, ensuring proper climate control of homes, office buildings, and other facilities. An HVAC engineer's job duties can include the design, installation, maintenance, and repair of heating, ventilation, air conditioning, cooling, and refrigeration systems. HVAC engineers can design systems for residential, industrial, institutional, and commercial buildings, including schools, office buildings, and health care facilities. They may meet directly with clients, work with engineering colleagues like management, installers and repair technicians, design new systems or find solutions for existing system problems, and prepare estimates. These professionals can work for consulting or design firms, government agencies, facilities offices, or HVAC equipment sales offices. HVAC engineers need solid problem-solving skills to ensure the heating, cooling, refrigeration, and ventilation systems meet the needs of the people using them.