Dougherty Heating & Air is a full-service HVAC company that has been providing Tyler, TX, and surrounding areas with top-notch service for the past 6 years. Specializing in both residential and commercial heating and air conditioning systems, as well as refrigeration system solutions in all sizes, the team at Dougherty Heating & Air has the technical skills and over 20 years of on the job experience to repair or install any system in use today.