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Intermountain Heating & AC When mother nature throws all she can at you we are here to accept the challenge and keep you and your family comfortable, no matter how frightful the weather. 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.

We sell and service the most technologically advanced and efficient heating and cooling systems the HVAC industry has to offer. Our units are silent, energy efficient, and guaranteed to provide you with the cleanest and freshest air possible.
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Intermountain Heating and Air Conditioning was established on a tradition of outstanding customer service and quality products. Intermountain is the only Trane dealer in the Helena area and also sells systems from numerous other manufacturers including Honeywell, Mitsubishi, Gensco, and WaterFurnace Geothermal Heat Pumps.
Southwest Montana is a place of extremes, known for its cold winters and hot summers. Intermountain sells and services the most technologically advanced and efficient heating and cooling systems the HVAC industry has to offer, ensuring our customers are comfortable no matter what the weather is like outside. We service what we sell as well as many other furnaces and air conditioners. For peace of mind, ask about our maintenance contracts.
Perhaps one of the greatest health concerns of our time is air quality. Intermountain offers air filtration systems that have the capability of filtering up to 99.98 percent of airborne allergens, including dust, pollen, smoke, pet dander, bacteria and mold spores. Our units are silent, energy efficient, and guaranteed to provide you with the cleanest and freshest air possible. It is possible to breathe fresh air inside as if you were outside and fully enjoy your home.
In our climate, humidity can affect the efficiency of your furnace and air conditioner. Our humidifiers add moisture to the air when it's needed, which saves energy by avoiding the constant circulation of air. Additionally, humidified air feels warmer, allowing you to turn down your thermostat to save even more energy.
Reviews (9)
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David Mancuso
Apr 27, 2022
Excellent sales and service, install went smoothly. Installers were very friendly and professional. Equipment was delivered in perfect shape, service techs worked with us on placement and performance. We would highly recommend these guys! Services: Thermostat installation, Ductless heating & A/C services, Install AC
Bridger Mahlum
Feb 18, 2022
I don't often write reviews - this is my first in about five years. But this one is justified because of the exceptional end-to-end experience I had with the Intermountain team. I was having problems with my Jotul gas stove, and after being declined for servicing by other businesses that sold these units, Intermountain enthusiastically booked an appointment for a technician to visit my home despite them not retailing with Jotul.

I had to reschedule twice, but they didn't blink, steadfast in their commitment to service. Russell visited my home last month, arriving a few minutes early, and performed a complete servicing of the unit within an hour. My home has since maintained a consistent temperature during these cold months in Helena, all thanks to Intermountain. I can't recommend them enough - they take on any challenge and treat their customers with unwavering respect.

Look no further for your heating and A/C needs! EDIT: I was not asked to leave this review. In fact, I contacted Intermountain asking them how I can do so - just another demonstration of their focus on delivering results and letting those outcomes do the talking for them.
Michael Throckmorton
Jan 07, 2022
I called after hours and Sean came as soon as he could. Quick diagnosis and repair. He fixed everything and left a clean workspace. I recommend this business completely. Service: Heating system maintenance
Drew Pearson
Nov 14, 2021
Chad with Intermountain was a knowledgeable installer and great to work with. We are very happy with the service products we received. Would highly recommend. Services: Install thermostat, Install AC
On Track
Nov 03, 2021
A business is only as good as their employees and I have to say, you guys have nailed it! Chad and his partner were absolutely amazing gentleman from the minute they walked in the door. They spent 2 days at our new house installing a new heating system and the entire time they were incredibly polite, informative, and even offered to walk us through everything they did to make sure we were completely happy.

As the CEO of a large landscape and excavation companyin multiple locations including Helena I am jealous that these folks work for this company and not my company! Keep up the fantastic work. Jason Clark CEO On Track Lawn and Landscape Inc
Jeff Wald
Aug 15, 2021
We put an addition on to our home and converted our current structure from a boiler/water heat system to forced air. Here are some things you need to know about Intermountain: 1. Their staff is incredibly professional, courteous, and kind. 2. Their communication is EXTRAORDINARY for a sub-contractor. They always showed up exactly when they said they would and always called ahead.

They actually exceeded my expectations regarding timelines. 3. The system they installed is phenomenal. Even the owner (Keven) himself was involved and was quite clear that they stood behind their products, service, and work. 4. I was pleasantly surprised at the bids we received. It was very affordable. 5. The staff bent over backwards for us even when we didn't have some things in place for them.

For example, I didn't have 220 service quite in place when they arrived, and Intermountain returned later to resume work almost immediately after my electrician put it in place. 6. I was actually given a refund when they didn't use some materials they thought they would. I would recommend Intermountain to anyone and will continue to use them for maintenance and service. I was very impressed.
William Frank
Jul 13, 2021
The level of professionalism started with the very first phone call to this company. The scheduler answered quickly promptly politely and have the knowledge for the questions that I had. Scheduling an estimator to come out to my house was effortlessly completed within a few minutes and did not waste any time. The salesman that showed up to do the estimate put my wife at ease answered every question that she had and made her feel completely comfortable and confident in what they were quoting. Michael the service desk lady was probably one of the most polite and Curtis people I have ever met in the home improvement business. Russell the gentleman who installed our unit was 100% professional trustworthy and knowledgeable in answering any questions I had during the install.

After the fact the follow-up service was phenomenal and top-tier. I would recommend this company to anyone that is seeking AC or heating work done on their house this is the company to go with.
Andy Weamer
Jul 05, 2021
Intermountain did a great job with my AC install. It wasn't an easy job because all new vents had to be ran in the attic. This meant being in a stuffy attic with old shredded fiberglass insulation during a warmer than average June. Their competition didn't even bother to send a bid after looking at it. The work was done quickly and looks great. I would highly recommend Intermountain to anyone looking for heating or cooling solutions.
I. S. Batchmann
Jun 27, 2019
They did a very nice job of installing an air conditioner/ heating unit in my home. Installation took less than a day, although I had to schedule the work more than a month in advance. The technicians were good at their jobs, and made extra efforts to ensure that I could operate the unit effectively. It works great, and my home is much more comfortable now.