Rated 5 / 5 from 11 reviews
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Intermountain The family-owned business of Intermountain would like to introduce you to their employees. We are very proud of our employees, and they are an essential part of the company. Their knowledge and dedication are what make this company a successful team. We have nearly 100 years combined installation and service experience, in addition to numerous ongoing training certificates.

We do service on most makes and models of furnaces, boilers, air conditioners, geothermal furnaces and garage unit heaters. Call us for fast and friendly, professional service of your HVAC equipment. We offer free estimates in the Helena area.
Highlights and features
  • Commercial HVAC, Maintenance Services, Cooling Services, Heating Services, Residential HVAC, Systems & Equipment, Installation Services, Ventilation Services
Associations and certifications
  • Better Business Bureau
  • Building Industry Association
Services
Air Conditioning
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When it comes to heating and cooling America's homes, people see Trane as the industry experts more than any other brand. Trane XR and XLi air conditioners represent a serious commitment to your comfort and peace of mind. They are some of the most advanced air conditioners Trane has ever created, and they are some of the most efficient. So you stay comfortable and energy smart even in the worst weather, year after year.
Filtration
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Designed from the ground up to clean the air like nothing before, CleanEffects makes the air in your home feel cleaner and fresher than you thought possible. As an accessory to your matched Trane system, CleanEffects: removes up to an incredible 99.98% of allergens from filtered air, traps particles as small as .1 micron in size, up to 100 times more effective than standard 1" filter, can reduce your need to dust by up to 50%, has had its performance verified by leading experts at the Harvard School of Public Health.
Videos
Geothermal Heating and Cooling from WaterFurnace
Geothermal Heating and Cooling from WaterFurnace
Learn more about geothermal. Use the renewable solar energy stored in your yard to save on heating, cooling and hot water costs. WaterFurnace geothermal heat pumps are good for the environment and great for your budget.
Reviews (11)
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The Bunches
Aug 10, 2022
Professional and pride in a job well done. Two things most businesses fall short of these days. Not at Intermountain however. From the estimate given by Brad, to the install completed by Jeff my experience was nothing less than spectacular. If anyone asked me to recommend a HVAC contractor, without hesitation it would be Intermountain. Jeff and Brad are to be commended. Employees like them are few and far between. Kudos!
Jim & Vanessa
Aug 10, 2022
Thanks for taking the time to follow up with the call and then coming out to the house. Cracking the window has helped subdue the gas smell, keeps the house from getting so hot and gives a peace of mind knowing that there is no gas leak.
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.