AC Installation in the Greater Missoula Area

Don't Wait...Call Hellgate

At Hellgate Plumbing, Heating and Cooling, we are your trusted partners for top-notch AC installation, ensuring residential properties stay cool, comfortable, and productive. We pride ourselves on installing high-quality Rheem air conditioning systems, renowned for their exceptional efficiency, durability, and quiet operation. Rheem has a long-standing reputation for innovation, offering models with advanced features like variable-speed compressors for precise temperature control, and EcoNet® compatibility for smart home integration. 

Whether you’re constructing a new building and require a complete cooling solution or your current system is faltering, our certified technicians offer customized installation services designed to meet your unique needs and budget. We also understand that a new AC unit is an investment, which is why we offer flexible financing options, seasonal specials, and comprehensive post-installation maintenance programs, including our Diamond Club, to make the process as smooth and beneficial as possible

Why Invest in a New AC Unit?

Installing a new air conditioning system is not just about replacing old equipment. It is about improving how your home feels, functions, and performs during Western Montana’s warmest months. A modern AC system offers real advantages that go beyond simple cooling.

Lower Energy Costs

Older air conditioners often work harder than they should, driving up energy bills month after month. New systems are built with improved efficiency standards that use less energy to deliver consistent cooling. Over time, those savings can make a noticeable difference in your monthly utility costs.

More Consistent Comfort

If some rooms in your home never seem to cool properly, an aging system may be the reason. New air conditioners provide more even temperature control and improved airflow. The result is a home that feels comfortable from room to room, even during peak summer heat.

Cleaner Indoor Air

As AC systems age, they can circulate dust, allergens, and other airborne particles. Modern systems paired with upgraded filtration help improve indoor air quality. This creates a healthier environment for your family and reduces the buildup of unwanted pollutants inside your home.

Fewer Breakdowns and Repairs

Frequent AC repairs are often a sign that a system is nearing the end of its lifespan. New air conditioners are built for reliability and long-term performance. Installing a new unit can reduce surprise breakdowns and give you peace of mind during the hottest days of the year.

Quieter Operation

Older systems tend to be loud and disruptive as components wear down. Today’s air conditioners are designed to operate much more quietly. This means better comfort without the constant background noise of a struggling system.

Environmentally Responsible Cooling

Many older AC units rely on outdated refrigerants that are no longer environmentally friendly. New systems use modern refrigerants and technology that reduce environmental impact. Upgrading helps lower your carbon footprint while improving efficiency.

Added Home Value

A new, energy-efficient air conditioning system is an attractive feature for potential buyers. It signals that the home has been well cared for and updated with modern comfort solutions. Even if you are not planning to sell soon, it is an investment that adds long-term value.

We're here to help!

Our team will help you select the perfect Rheem model for your specific needs.

Why Homeowners Choose Hellgate for AC Installation

Installing a new air conditioner is a long-term decision, and who installs it matters just as much as the equipment itself. Homeowners across Western Montana turn to Hellgate Plumbing, Heating and Cooling because we focus on doing the job right, not rushing through it.

  • Installation done with intention: We do not take a one-size-fits-all approach to AC installation. Every home is evaluated for size, layout, and cooling demands so the system performs the way it is supposed to from day one.
  • Built for local conditions: Western Montana homes face unique weather swings and temperature demands. Our team installs systems with those conditions in mind, helping prevent short cycling, uneven cooling, and early system failure.
  • Clear expectations from start to finish: We walk you through the process before any work begins so you know what to expect. From system selection to installation day, communication stays clear and straightforward.
  • Long-term system care: Our Diamond Club maintenance program is designed to protect your new investment. Members receive regular maintenance and priority scheduling, helping their new AC system run efficiently and reliably year after year.
  • Respect for your home: A new installation should not leave behind a mess or stress. Our technicians treat your home with care, keep the work area clean, and complete installations with professionalism and attention to detail.

Don’t let the Montana Heat Impact Your Comfort or Your Business

Contact Hellgate Plumbing, Heating and Cooling today to schedule a consultation for your AC installation in the Missoula, Lolo, East Missoula, Florence, Hamilton, Stevensville, and Superior, MT areas. Our dedicated team is ready to provide you with a free estimate and help you find the ideal cooling solution, featuring dependable Rheem systems, for your residential property.

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Testimonials

Hear From Our Satisfied Customers

Jay W
3 days ago
Hellgate replaced our aging toilet with a modern model. Overall, they did a good job and the experience was satisfactory.
Amy Courser
4 days ago
Fantastic service! On our first call, they were able to schedule us for repair very quickly! On the day of the service, they arrived promptly as promised and thoroughly outlined our repair options. The repairs were completed quickly at a fair cost. We were very impressed with how thorough, friendly and helpful they were. Highly recommend!!!
Ken C.
6 days ago
Work was performed in a straight forward, professional manner. I did have to tighten-up some bolts, when a small leak appeared, after the service man left. I am left with the feeling though, that the service was overpriced - and no senior discount was offered ( I must admitt, that in the pressure of the moment, I forgot to ask about thay )
Ken C.
6 days ago
Work was performed in a straight forward, professional manner. I did have to tighten-up some bolts, when a small leak appeared, after the service man left. I am left with the feeling though, that the service was overpriced - and no senior discount was offered ( I must admitt, that in the pressure of the moment, I forgot to ask about thay )
Jerry Matthews
2 weeks ago
Well what can I say they were great they got out here quick and figured out the problem and let me know what option I had and they had a salesperson come out the same day to discuss financing on the new furnace they did everything they could plus some they did A great job I'd recommend them big time thank you guys hellgate heating plumbing and cooling and the secretaries and the people that answer the phone they were all damn nice
Jim Smitham
2 weeks ago
Our furnace wasn't operating correctly and we were away for the winter. I called on a Friday to see if a technician could check out the furnace before the weekend. Hellgate for us in and the furnace was up and operating correctly before the cold weekend. We really appreciate them helping us out. I would recommend Hellgate Plumbing and Heating to anyone.
Colleen O'Connell
2 weeks ago
First time using Hellgate and I highly recommend them. Their communication, prompt service, as well as updates while at the house was excellent. Our technician was wonderful!
Cary Cyr
3 weeks ago
RE:Annual scheduled boiler maintenance Always courteous and professional. Thank you Hellgate Plumbing for offering a membership with monthly billing.
Dan Sieckman
3 weeks ago
I’ve been a customer for several years. So far, both the work and the employees have been great.
Jena Names
3 weeks ago
I have an older heater (1998) and the tech (Sinjun) did an honest inspection and service. I was a bit suspect that I would get a sales pitch for a new unit, due to the age of the unit. The tech let me know, based on his inspection, that there is a lot of life still left! The inspection and service was well documented with photos and a walkthrough.
Lindsey Smith
3 weeks ago
Sinjun was fantastic! Explained option very clear and replaced our fireplace thermostat with ease. Highly recommend this company.
jezua garrison
3 weeks ago
Abram did a great job! Quick easy and professional. No complaints!
Ray Curtis
3 weeks ago
I am completely delighted with what Talan and Sinjun did for me! Hellgate P and H should be proud of them. They came in and professionally took care of my problem. Obviously, they knew what they were doing! Additionally, they were stellar representatives for the company!
Seana Iverson
3 weeks ago
Highly recommend Hellgate plumbing!! Honest, prompt and thorough I've had several plumbing issues recently and they came to my rescue
Karen Lacey
3 weeks ago
Sinjun and Talan were quickly able to assess and solve the problem of the unusual sound on the furnace
Kate Laney
3 weeks ago
I received a free plumbing inspection after signing up as a Diamond member. The technician arrived on time, inspected all the pipes and fittings, including the crawl space. Very efficient and pleasant. They sent me a text with a picture of the technician, his name, and a bit about him. I thought this was a. Dry nice touch. I love their service and the touches like that are a bonus.
Deborah Tomas
4 weeks ago
Clear, easy to understand communication, great attitude in spite of difficult circumstances, got a big project finished in record time, so the inconvenience of no hot water and having the kitchen torn apart didn’t last long. Price reasonable
Alex Segal
4 weeks ago
No one wants to replace their furnace less than a year after buying a home, but Hellgate made the process surprisingly easy. Jakob, Jacob and Caiden did an amazing job planning the work and executing it completely and on schedule. Even when a minor roadblock presented itself Jakob came to me with a plan ready to execute and did so without an increase in cost or the timetable Highly recommend Hellgate to anyone, their professionalism and quality of work cannot be beat. I'd also recommend Jakob and Caiden be applauded for their work. Both were absolutely respectful of me, my home and my property. Thanks! Update 1/9/26: The water pump on my furnace went out sometime early this morning and after some brief troubleshooting I realized I was in over my head! A quick phone call and a few hours later Sinjun and Talan were here to help! Within 30 minutes the problem had been diagnosed and a fix had been recommended. Not 7 hours after noticing the problem it was completely fixed and heat had returned! Not only that, but it was covered by warranty so not a penny had to be spent. I honestly cannot recommend Hellgate enough! Sinjun and Talan were amazingly professional, kind and swift. You can pay for good work but you cannot put a price on this level of service and competence so again, thank you so much Hellgate, Sinjun and Talan!

    Get Assistance Today

    Don't Wait... Call Hellgate

    Responsive and reliable. Help when you need it most. Hellgate Plumbing, Heating and Cooling has provided residents of Missoula, Lolo, Florence, MT, and beyond with reliable and affordable HVAC and plumbing services for over 40 years.