Call us for fast and friendly, professional service of your HVAC equipment.

We deliver comfort,
convenience, and energy efficiency.

Intermountain Heating and Air Conditioning is Helena’s leader in HVAC, heating, air conditioning and geothermal. We provide sales, service and installation for residential and commercial projects.

Heating & Cooling

We sell and service the most technologically advanced and efficient heating and cooling systems the HVAC industry has to offer. Learn More

Clean Air

Our units are silent, energy efficient, and guaranteed to provide you with the cleanest and freshest air possible. Learn More


Our humidifiers add moisture to the air when it’s needed, which saves energy by avoiding the constant circulation of air. Learn More

Home Automation

Our products seamlessly integrate with whole-home automation systems, including lighting, security, and sound. Learn More


If you’re wondering how you can save an average of 70 percent on heating and cooling, call Intermountain for an on-site geothermal consultation. Learn More

Trane heating and cooling specialist helena

12 or 72 Months Special Financing*

*On qualifying equipment. Subject to credit approval


Wonderful contractor to work with. Installers were Exceptional; System works great!
Rating: 5 stars
I am highly pleased with this company. I really couldn’t ask for better service. All around great customer service!
Rating: 5 stars
Both the office staff and the technician were very understanding and took my concerns to be important. They were helpful and had my problem solved and I now have a warm and comfortable house.
Thank you so much for doing a great job from start to finish. You delivered excellent customer service. I am very impressed and pleased to find a company that is so thoughtful and professional.
Rating: 5 stars

Our Vendors

Intermountain is the only Trane dealer in the Helena area and also sells systems from numerous other manufacturers including:

Trane Heating and Air ConditioningHoneywellMitsubishi Electric Air Conditioning SystemsWaterfurnace Geothermal Heat PumpsVenmar Clean AirRinnai Heating