Your domain registration is pending. Check back in an hour


$79 Summer Tune-Up Special
Filter replacement and condenser cleanup included.

Call now to schedule an appointment at 970-714-0515.

Licensed & Insured Repair, Maintenance, Replacement & New Installation For All Your AC Equipment. Call Now! Serving Greeley, Loveland, Longmont, Johnstown, Millike...

Read More

Licensed Repair, Maintenance & Replacement For All Your AC Equipment. Call Now! Serving Greeley, Loveland, Longmont, Johnstown, Milliken, Windsor, and surrounding areas. Call 970-714-0515


Heating & Air Conditioning Service

  • Heating & Air Conditioning Service

    For Residential and Commercial properties • 24/7 Emergency service • Furnace and Air Conditioning installation, & repair • Furnace and Air Conditioning maintenance • Installation and service for remodeling and renovation projects • Boiler maintenance & repair• Parts and support for do-it-yourselfers • Mobile and manufactured homes


2 weeks ago
The furnace gave up during the winter. The previous company wanted to have the chimney removed and to replace the water heater as well. George came up with some ideas for the new furnace, and the lining of the chimney and everything was done in less than two days for half of the cost the other company quoted. The inspector was very impressed. George is one of the kindest and nicest people one might meet who will do anything to help the best way possible.
- Anna U
20 hours ago
Awesome prompt and thorough service! And the latest technology to quickly identify any issues! Highly recommend them.
- Ken B
6 months ago
Simply impressed and appreciative of Mountain States Heat and Air. They surpassed my expectations. George came over, inspected, and got my boiler heating system up and running in no time. After the system was up and running, he figured out, an air plug had developed in the top zone (I have a total of 3) He carefully inspected my system, and discovered it was in poor shape. (Just a little background: I have had it serviced every year, using the same company, and they always reassured me it was functioning optimally) George of Mountain State Heating and Air, pointed out each area of concern, and replaced valves, pipes, zone controllers. Not only that, he explained where each part was and its purpose, with some general upkeep information. It turned into a big job, but George did it correctly and with great integrity. MY HEATING HAS NEVER WORKED THIS WELL IN THE 5 YEARS SINCE I PURCHASED MY HOME!!!! Mountain States Heat and Air will be my exclusive heating provider!
- Damoine R

Contact Us


Call now
  • (970) 714-0515


Get directions
3405 West 16th Street
Unit 22
Greeley, CO 80634
United States

Business Hours

Mon:8:00 AM – 8:00 PM
Tue:8:00 AM – 8:00 PM
Wed:8:00 AM – 8:00 PM
Thu:8:00 AM – 8:00 PM
Fri:8:00 AM – 8:00 PM
Sat:8:00 AM – 8:00 PM
Sun:8:00 AM – 8:00 PM
Contact Us
Message sent. We'll get back to you soon.