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Verified Reviews for Heating And Air Conditioning Service pros in Hardin, MT

*The Angi rating for Heating And Air Conditioning Service companies in Hardin, MT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Hardin, MT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on November 22, 2025

Find Heating and air conditioning pros in Hardin

Avatar for AU Electric, LLC

AU Electric, LLC

5.00(
14
)
•Approved Pro

AU Electric, LLC

5.00(
14
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

AU Electric LLC is dedicated to providing our customers with the best quality and craftsmanship. We are a family and veteran owned and operated business. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"Great to work with, very reasonable. Highly recommend"

Classic W on March 2023

AU Electric LLC is dedicated to providing our customers with the best quality and craftsmanship. We are a family and veteran owned and operated business. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"Great to work with, very reasonable. Highly recommend"

Classic W on March 2023

Avatar for Omega Home Maintenance

Omega Home Maintenance

5.00(
11
)
•Approved Pro

Omega Home Maintenance

5.00(
11
)
•Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
65 local quotes requested

We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!

"Brian was awesome to work with from start to finish. Timely, professional and the completed project looks great. We will definitely use him again."

Kari F on April 2025

We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!

"Brian was awesome to work with from start to finish. Timely, professional and the completed project looks great. We will definitely use him again."

Kari F on April 2025

Avatar for Sentri Homes

Sentri Homes

No reviews yet

Sentri Homes

No reviews yet
117 local quotes requested

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Day and Night heating

No reviews yet

Day and Night heating

No reviews yet

all forms of heating on all brands of equipment as well as accessories such as humidification, air treatment and maintenance. No overtime charges or travel fees just a straight hourly wage broken up in as little as 15 minute increments. Senior and military discounts.

all forms of heating on all brands of equipment as well as accessories such as humidification, air treatment and maintenance. No overtime charges or travel fees just a straight hourly wage broken up in as little as 15 minute increments. Senior and military discounts.

Aire Serv of Kalispell

No reviews yet

Aire Serv of Kalispell

No reviews yet
32 years of experience

Aire Serv of Kalispell is well-established in the Flathead Valley for over 20 years. We specialize in heating and cooling system upgrades or replacements, emergency service, and system tune-ups. All of our pricing is upfront, and we guarantee our work. We provide service to Bigfork, Kalispell, Swan Valley, Columbia Falls, Whitefish, Polson and the rest of the Flathead Valley.

Aire Serv of Kalispell is well-established in the Flathead Valley for over 20 years. We specialize in heating and cooling system upgrades or replacements, emergency service, and system tune-ups. All of our pricing is upfront, and we guarantee our work. We provide service to Bigfork, Kalispell, Swan Valley, Columbia Falls, Whitefish, Polson and the rest of the Flathead Valley.

Avatar for Second Nature (Formerly FilterEasy)

Second Nature (Formerly FilterEasy)

5.00(
1
)

Second Nature (Formerly FilterEasy)

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Second Nature, formerly FilterEasy, empowers its members to achieve long-lasting, sustainable home wellness with convenient subscription plans, including high-quality home air filters and refrigerator water filters. We exist to simplify home wellness, to make it so easy and convenient that it becomes second nature. Learn about our products and subscribe at www.SecondNature.com/home.

Second Nature, formerly FilterEasy, empowers its members to achieve long-lasting, sustainable home wellness with convenient subscription plans, including high-quality home air filters and refrigerator water filters. We exist to simplify home wellness, to make it so easy and convenient that it becomes second nature. Learn about our products and subscribe at www.SecondNature.com/home.

h.j gilchrist & co.

4.00(
2
)

h.j gilchrist & co.

4.00(
2
)
Customers say: Quality work
46 years of experience

Been proudly service great falls and surrounding area since 1979. We specialize in seamless steel siding, soffitt, fascia, trim & steel rain gutters and down spouts. We have worked with all types of siding, steel and asphalt roofs, windows, doors, etc....dedicated to serving the great people off great falls leaving with you a piece of mind that your getting a top end job that will take it easy on your check book. Sincerely Harold & Nick gilchrist.

"Nice job but took 5 months to start from estimate date. Please be sure to get every point and conversation with Harold in writing and stay with Harold until he gives you a receipt for all money paid. Be sure to immediately get every piece of work completed before he is paid. He will drag it out. Do not go with just his word as he does not back up he verbal promises."

Annette C on June 2020

Been proudly service great falls and surrounding area since 1979. We specialize in seamless steel siding, soffitt, fascia, trim & steel rain gutters and down spouts. We have worked with all types of siding, steel and asphalt roofs, windows, doors, etc....dedicated to serving the great people off great falls leaving with you a piece of mind that your getting a top end job that will take it easy on your check book. Sincerely Harold & Nick gilchrist.

"Nice job but took 5 months to start from estimate date. Please be sure to get every point and conversation with Harold in writing and stay with Harold until he gives you a receipt for all money paid. Be sure to immediately get every piece of work completed before he is paid. He will drag it out. Do not go with just his word as he does not back up he verbal promises."

Annette C on June 2020

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Heating and Air Conditioning questions, answered by experts

A calculation method that your HVAC contractor will use to ensure your system does what it's supposed to is measuring duct output, or its CFM. The calculation requires knowing the cross-sectional area of the ductwork and determining the air speed past any given point within it.

To extend your HVAC system’s lifespan, it’s crucial to keep up with maintenance. This includes changing filters and thermostat batteries, keeping the outside unit clean and clear of clutter, and lubricating moving parts. Watch out for leaks, mold buildup, and blockages to ensure your unit stays in good working order. Spotting these issues early can be the difference between a simple, wallet-friendly repair and an expensive replacement.

You should plan to change your AC unit's filter every one to three months, depending on the manufacturer's recommendations. You should also clean the coils at least once per year, but if you have pets or someone in your household has allergies, you might need to clean them more often. Fortunately, many pros will clean the coils and change the filter for you during an inspection, which you should schedule once or twice per year.

You should get anywhere from three to five quotes for HVAC replacement to get an idea of the average cost of a new unit. Although this quote-collecting process can be time consuming, it allows you to compare what work is required, what type of unit you should install, and how much you should expect to pay for the service.

Repairing an AC unit is usually more cost-effective than replacing it, but you should consider the age of your system. Most central AC units last around 15 years, and window units last for between eight and 10 years. If your central AC is more than 10 years old or your window AC is over six years old, you should consider replacing the AC unit rather than repairing it. The repair will fix your issue, but you’ll likely save money in the long run by replacing it rather than repairing it only to replace it a few years later.

The Hardin, MT homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.

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