Call Major Heating and Air Conditioning
720-856-4848 (M-F 7am-5pm MT)
Please use this number to schedule an appointment, request service information or for any other needs.
24/7 Emergency Service – Call 720-856-4848
Residential Service:  Throughout the Greater Denver Metro Area including Boulder, Brighton, Highlands Ranch, and Parker, as well as the Rocky Mountain Region including Aspen, Steamboat Springs, and Vail.

  • Commercial Service: Throughout the Rocky Mountain Region
  • Geothermal Service: Nationwide

At Major, our exclusive Major Service System™ ensures your comfort based on your unique lifestyle. Our Comfort Specialists are always eager to help and answer your questions.

If you prefer to email, please fill out the form. One of our Comfort Specialists will get back to you within one business hour (during normal business hours).