Denver HVAC Company

We Believe in Doing the Job Right!

Since 1970, Major Heating and Air Conditioning has been providing quality heating and air conditioning to Colorado’s residents and facility managers. And today, we also provide renewable Geothermal for both residential and commercial projects. We strive to provide our customers with high quality customer service and products at an exceptional value. Our technicians are proficient in up-to-date system installation and service techniques. We take great pride in providing the Denver metro area with quality installations of new equipment and servicing existing heating and cooling systems. We specialize in everything that heats, cools, or looks like it does! We are proud members of the Better Business Bureau, with an A+ rating since 1983.

At a Glance

  • A + Rating with the BBB
  • Premier heating and air conditioning installation and servicing
  • Free estimates on new equipment
  • Customized maintenance plans
  • 24-hour Emergency service
  • EPA, LEED, and NATE certified technicians
  • Over 40 years of industry experience