123 HVAC Heating & Cooling provides professional heating and air conditioning services across Westchester County and the surrounding areas. As an authorized Daikin and Trane/Mitsubishi dealer, the company specializes in both residential and commercial climate control solutions. Experienced technicians handle everything from urgent air conditioning repairs and seasonal tune-ups to complete system replacements. The business offers extensive expertise in modern ductless mini-splits and high-efficiency heat pumps, helping homeowners transition to energy-efficient comfort systems. Heating services include the installation, maintenance, and repair of gas and oil furnaces. Regular maintenance agreements are available to keep HVAC systems operating at peak performance throughout the year. Dedicated to reliable indoor climate management, this locally owned business serves numerous communities including Yorktown Heights, Chappaqua, and White Plains.