HVAC technology is advancing to increase efficiency and optimize comfort. The PM Contracting team is skilled in state-of-the art HVAC systems, including Variable Refrigerant Flow technology. This method of heating and cooling buildings is gaining ground in the US after becoming a standard of use in Europe. VRF is a popular choice in schools and office buildings where multiple zones of control are required. Besides being highly energy efficient, VRF offers dehumidification, and quietness, and can easily switch from heating to cooling.