HVAC contractors are professionals who specialize in the installation, maintenance, and repair of heating, ventilation, and air conditioning systems. They ensure that indoor environments are comfortable by regulating temperature and air quality. These contractors are trained to work with various systems, including furnaces, air conditioners, and ventilation systems. To become an HVAC contractor, individuals typically undergo training and certification to understand the technical aspects of these systems. They may also be required to obtain licenses, depending on local regulations. Their expertise helps homeowners and businesses maintain efficient and safe climate control systems.