--- title: The 3 Best Companies for AC Repair in Great Falls | Local Three url: https://thelocalthree.com/great-falls/ac-repair/ updated: 2026-11-04 --- [Local *Three* Selected, not listed](https://thelocalthree.com/) - [Great Falls](https://thelocalthree.com/great-falls/) - [AC Repair](https://thelocalthree.com/ac-repair/) - [How we select](https://thelocalthree.com/how-we-select/) - [For businesses](https://thelocalthree.com/claim/) 1. [Home](https://thelocalthree.com/) 2. [Montana](https://thelocalthree.com/montana/) 3. [Great Falls](https://thelocalthree.com/great-falls/) 4. AC Repair Great Falls · AC Repair # The 3 Best Companies for AC Repair in Great Falls 2027 Edition Updated November 4, 2026 By the Local Three editors [How we select](https://thelocalthree.com/how-we-select/) In short Of the 3 companies for ac repair we reviewed in Great Falls, these three had the strongest records: 130 public reviews between them, averaging 4.7 out of 5. Local Three editors · November 4, 2026 ## The short answer For ac repair in Great Falls, call **Dooley's Diabolical Diesel** , **Northern Heating & Cooling** or **At Klemens** first. We chose them from 3 local companies on rating, review volume, recent activity and years in business. ## Our 3 selections for ac repair Reader Favorite ### [Dooley's Diabolical Diesel](https://thelocalthree.com/business/g-b1f7397d4ae32934/) **4.5** from 38 reviews Based in Great Falls Coverage Based in Great Falls #### Why we picked them A large, loyal client base: 38 public reviews, averaging 4.5 out of 5. Checked Oct 2026 - Operating status Request a quote [Call +1 406-781-0978](tel:+14067810978)[Website](https://dooleydiesel.com/contact-us/) Editor's Pick ### [Northern Heating & Cooling](https://thelocalthree.com/business/g-85f8d0c31df2862f/) **4.8** from 58 reviews Based in Black Eagle Coverage Based in Great Falls #### Why we picked them The strongest overall record of the 3 companies for ac repair we reviewed in Great Falls: rating, review volume, recent activity and years in business, taken together. Checked Oct 2026 - Operating status Request a quote [Call +1 406-727-5531](tel:+14067275531)[Website](http://www.mtnorthernheating.com) Selection 03 ### [At Klemens](https://thelocalthree.com/business/g-a9d6c8ea7a68f57f/) **4.7** from 34 reviews Based in Great Falls Coverage Based in Great Falls #### Why we picked them A steady public record: 4.7 from 34 reviews. Checked Oct 2026 - Operating status Request a quote [Call +1 406-452-9541](tel:+14064529541)[Website](https://atklemens.com) At a glance ## The three, side by side Comparison of the selected ac repair in Great Falls | | 01 Dooley's Diabolical Diesel | 02 Northern Heating & Cooling | 03 At Klemens | |---|---|---|---| | Best for | Reader Favorite | Editor's Pick | – | | Rating | 4.5 · 38 reviews | 4.8 · 58 reviews | 4.7 · 34 reviews | | In business | – | – | – | | Budget | – | – | – | | Free estimate | Ask | Ask | Ask | | License | Not confirmed yet | Not confirmed yet | Not confirmed yet | | Based in | Great Falls | Black Eagle | Great Falls | Methodology ## How we selected these businesses Three is a deliberately small number. It forces us to leave out good companies. [Read the full methodology](https://thelocalthree.com/how-we-select/) 1. **We start with everyone.** 3 companies for ac repair in Great Falls, from public listings and review platforms. 2. **We remove the risky.** No working phone, too few genuine reviews or a weak rating. 3. **We read the record.** Review volume and recency, years in business and the record checks we could confirm. 4. **Editors keep three.** And write down who each one suits best. [How we make money](https://thelocalthree.com/how-we-make-money/). Local facts · Cascade ## Great Falls, by the numbers Public records tell you how busy the trade is and what the rules ask of every job. Read them before you call. People per square mile 2,599 [Calculated from U.S. Census Bureau 2025 estimates and Gazetteer land area](https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.html) · 2025 Land area 23.2 sq mi [U.S. Census Bureau, 2025 Gazetteer files](https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.html) · 2025 Great Falls residents 60,208 [U.S. Census Bureau, Vintage 2025 population estimates (sub-est2025)](https://www.census.gov/data/tables/time-series/demo/popest/2020s-total-cities-and-towns.html) · July 1, 2025 Population change since 2020: from 60,481 (April 2020 base) -0.5% [U.S. Census Bureau, Vintage 2025 population estimates (sub-est2025)](https://www.census.gov/data/tables/time-series/demo/popest/2020s-total-cities-and-towns.html) · 2020–2025 Public sources, checked November 4, 2026. Local guide ## Hiring companies for ac repair in Great Falls: what to know first ### Check the license Look the company up on your state’s license search, and ask for insurance papers sent by the insurer. ### Compare written quotes Three quotes for the same work, each listing what is not included. ### Ask about the warranty In writing, clear about what it covers, and transferable if you sell. ### Pay in stages Pay for finished, inspected stages, not dates. Request a quote ## Ask our three for a price One short form, sent only to the companies you tick. Most reply within one or two working days. Send my request to We never sell your details. A business that answers may pay us a small fee; your price is the same. We never sell your details. A business that answers may pay us a small fee; your price is the same. Questions ## Questions about ac repair in Great Falls How did the editors choose these AC repair companies in Great Falls? Editors shortlist businesses with strong ratings and enough reviews, check their records, and choose the final picks against the published criteria. We compared 3 AC repair companies for Great Falls. Which of these AC repair companies in Great Falls has the best reviews? Northern Heating & Cooling has a 4.8 rating from 58 public reviews, the highest on this page. Are these AC repair companies licensed? 3 of the 3 businesses here had their state license checked against public records. Each profile shows the source and the date of the check. How many quotes should I get for AC repair companies in Great Falls? Get at least three. Use the quote form on this page: only the businesses you tick receive your request. Related in Great Falls ## Also selected - [HVAC Contractors](https://thelocalthree.com/great-falls/hvac-contractors/) - [Auto repair shops](https://thelocalthree.com/great-falls/auto-repair-shops/) - [Brake repair shops](https://thelocalthree.com/great-falls/brake-repair-shops/) - [Transmission repair shops](https://thelocalthree.com/great-falls/transmission-repair-shops/) - [Tire shops](https://thelocalthree.com/great-falls/tire-shops/) - [Plumbers](https://thelocalthree.com/great-falls/plumbers/) Nearby editions ## AC Repair nearby - [Jacksonville](https://thelocalthree.com/jacksonville/ac-repair/) - [Miami](https://thelocalthree.com/miami/ac-repair/) - [Tampa](https://thelocalthree.com/tampa/ac-repair/) - [Orlando](https://thelocalthree.com/orlando/ac-repair/) - [Port St. Lucie](https://thelocalthree.com/port-st-lucie/ac-repair/) - [St. Petersburg](https://thelocalthree.com/st-petersburg/ac-repair/) - [Cape Coral](https://thelocalthree.com/cape-coral/ac-repair/) - [Hialeah](https://thelocalthree.com/hialeah/ac-repair/) Up a level ## More in Great Falls - [Great Falls edition](https://thelocalthree.com/great-falls/) - [AC Repair, every city](https://thelocalthree.com/ac-repair/) For businesses ## Own a local business in Great Falls? 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Ratings and review counts are collected from public review platforms and were last refreshed on November 4, 2026 .