9 AC Installation Contractors in Missoula, MT

4.7 avg rating
3,783 total reviews6 offer 24/7 service
Need emergency service? 7 HVAC providers in Missoula offer 24/7 availability

Top-Rated AC Installation Contractors in Missoula

#1

Hellgate Plumbing, Heating, And Cooling

4.9(1,138 reviews)
24/7 Highly Rated

Among 1,138 reviews, positive feedback consistently mentions technician communication skills, same-day service response, and pricing transparency, while the…

725 Strand Ave, Missoula, MT 59801
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#2

Garden City Plumbing & Heating, Inc

4.8(993 reviews)
Highly Rated

Among four sampled reviews, three award perfect ratings citing rapid response times and specific technician competence. Two reviewers name individual…

3955 Flynn Ln, Missoula, MT 59808
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#3

Right Now Plumbing and Heating

4.8(494 reviews)
24/7 Highly Rated

495 reviews yield a 4.8 average rating, with technicians Jeremy, Tyler, and Brent appearing across multiple positive evaluations. Reviewers consistently note…

924 N Russell St, Missoula, MT 59808
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All AC Installation Contractors (9 total)

Temp Right Service

4.8(479)
24/7 Highly Rated

All 479 reviews carry 5-star ratings, with reviewers specifically naming technicians Ben, Terrance Wallace,…

5818 Sandpiper Dr, Missoula, MT 59808
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Anderson's Heating, Air Conditioning & Plumbing

4.5(294)
24/7

Five recent reviewers award five stars, with two praising same-day arrival during urgent situations (bathroom…

3912 Brooks St, Missoula, MT 59804
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Hotchkiss Heating & Air

4.9(183)
24/7 Highly Rated

Every reviewer awarded 5 stars, with 3 explicitly naming the technicians who performed their work. Customers…

2221 S 3rd St W, Missoula, MT 59801
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Design Air, Inc.

4.6(87)

Five-star reviews dominate the 87-review sample, with recurring mentions of professional technician…

1510 Bulwer St unit c, Missoula, MT 59802
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Air Quality Mechanical

4.5(74)

Four of five sampled reviewers specifically mention same-day or Quick response service. All five-star reviews…

1940 Montana St, Missoula, MT 59801
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Valiant Heating and Cooling

4.9(41)
24/7

Six of seven five-star reviews explicitly describe same-day or within-hour emergency response, while the sole…

2120 S Reserve St #456, Missoula, MT 59801
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AC Installation Costs in Missoula

New central AC installation costs in Missoula, by system type and brand.

ServiceLowAverageHigh
Window unit
$168$392$784
Ductless mini-split (single zone)
$2,240$5,040$8,960
Central AC replacement (existing ducts)
$3,920$7,280$13,440
Central AC new install (with ductwork)
$7,840$13,440$22,400
Carrier (residential)
$4,256$6,944$11,760
Trane (residential)
$5,600$9,856$15,232
Lennox (residential)
$3,920$7,280$13,440
Rheem (residential)
$3,584$6,160$10,080

Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.

AC Installation in Missoula, MT: What to Expect

Missoula sits tucked into a northern Rockies valley at roughly 3,200 feet elevation, where IECC zone 6B brings warm, dry summers topping out near 85 F with just a handful of days pushing past 90 each July. That short cooling season still creates genuine demand, especially as late-summer wildfire smoke sends households hunting for filtration and cleaner indoor air. Nine contractors serve the Missoula market, and their combined record speaks for itself: an average rating hovering around 4.7 across thousands of verified homeowner reviews, reflecting steady, competent work on every call for AC Installation in Missoula.

Pricing reflects the scope homeowners choose. A window unit runs roughly $168 to $784, while a ductless mini-split single-zone system lands around $2,240 to $8,960, and a central AC replacement leveraging existing ductwork typically costs $3,920 to $13,440. Every installer in Montana carries state-level licensing verification, giving residents confidence that the contractor stepping onto their property meets recognized trade standards before any compressor hits the pad.

Reading through local reviews paints a clear picture of what separates one company from another. Homeowners repeatedly call out technician communication, with Hellgate's team earning mention for explaining things clearly on every job. Response time surfaces as a quiet differentiator across the market, and names keep appearing in positive contexts , Wayne and Matt with Garden City, Jeremy and Brent attached to Right Now, all mentioned in reviews that award perfect ratings for getting the job done right the first time.

Frequently Asked Questions

New AC installation in Missoula costs $168-$22,400 depending on system type. Window units run $150-$700, ductless mini-splits $2,000-$8,000 per zone, central AC replacement with existing ducts $3,500-$12,000, and full new installs with ductwork $7,000-$20,000. SEER rating, tonnage, and brand significantly affect pricing.