❄️ Official Rankings
10 Best HVAC in Great Falls, MT (October 2026)
We compared 10 hvac serving Great Falls and Cascade County, Montana, and ranked the top providers by verified reviews, ratings, and local reputation — 837 customer reviews in all.
The 10 listed below hold an average rating of 4.8 out of 5, led by Northern Heating & Cooling. Updated for October 2026.
- HVAC ranked
- 10
- Average rating
- 4.8★
- Reviews analyzed
- 837
- Area code
- 406
⭐ 4.9 · 200 reviews
2501 17th St NE, Black Eagle, MT 59414
⭐ 5.0 · 67 reviews
315 4th St S, Great Falls, MT 59405
⭐ 4.8 · 38 reviews
301 2nd St S, Great Falls, MT 59405
⭐ 4.6 · 290 reviews
1019 8th Ave N, Great Falls, MT 59401
⭐ 4.7 · 47 reviews
600 2nd St S, Great Falls, MT 59405
⭐ 4.6 · 88 reviews
3405 8th Ave N, Great Falls, MT 59401
HVAC listed here serve Great Falls, Cascade County, and nearby ZIP codes including 59401, 59403, 59404, 59405, 59406.