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Best HVAC Contractors in Helena, MT (2026)

31 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Helena: All Season Heating & Air Conditioning, LLC, CR Score 63/100; 4.9★ from 763 Google reviews.

  2. 6

    Best for emergencies (open 24/7): Ambient Air Solutions, posts 24/7 hours; ranked #6 of 31.

  3. 3

    Most-reviewed: 3 Brothers Plumbing & Heating, 756 Google reviews at 4.7★, the most of 31 ranked after All Season Heating & Air Conditioning, LLC; ranked #3.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

31 Helena HVAC contractors are ranked here by CR Score, from ten published factors. 6 are open 24/7, 7 open Saturdays and 7 open Sundays, based on posted hours. The median Google rating is 4.6★ across 31 rated businesses.

Top 10 HVAC contractors in Helena at a glance

Top 10 HVAC contractors in Helena at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1All Season Heating & Air Conditioning, LLC634.9★ (763)Helena—Overall
2American Sheet Metal625.0★ (323)Helena——
33 Brothers Plumbing & Heating624.7★ (756)Helena—Most reviews
4Superior Heating and Cooling604.9★ (151)Helena——
5Jak's Heating and Air595.0★ (100)Helena——
6Ambient Air Solutions594.3★ (12)Helena24/7Emergencies
7City Plumbing & Heating Co595.0★ (8)Helena Valley West Central, 1 mi away24/7—
8Intermountain Heating and Air Conditioning584.6★ (123)Helena——
9A1 Mitchell's Heating & Cooling LLC574.0★ (8)HelenaSat · Sun · Evenings—
10Big Sky Plumbing & Heating564.3★ (63)Helena——

The 31 best HVAC contractors in Helena, ranked

Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.

  1. Based in Helena

    62/100CR Score

    Ranked #2 because of its Google rating and trade focus: 5.0★ from 323 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 323 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    1526 Hauser Blvd, Helena, MT 59601
  2. 60/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.9★ from 151 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 151 Google reviews
    Hours
    Mon–Fri 8:30 AM–5 PM · Sat–Sun closed
    Address
    1145 Hahn Rd, Helena, MT 59602
  3. Based in Helena

    59/100CR Score

    Ranked #5 because of its Google rating and trade focus: 5.0★ from 100 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 100 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    3300 Cb Loop, Helena, MT 59602
  4. Based in Helena

    59/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.3★ from 12 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.3★ from 12 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4185 N Montana Ave STE 3, Helena, MT 59602
  5. Based in Helena

    56/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.3★ from 63 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.3★ from 63 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    1923 Dodge Ave STE C, Helena, MT 59601
  6. Based in Helena

    55/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Air conditioning contractor”.

    Based on 7 of 10 factors; credentials, recency and availability not yet collected.

    • 4.2★ from 5 Google reviews
    Address
    Helena, MT 59601
  7. Based in Helena

    53/100CR Score

    Ranked #19 because of its Google rating and trade focus: 3.7★ from 13 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 3.7★ from 13 Google reviews
    Hours
    Mon–Wed 8 AM–5 PM · Thu 8 AM–4 PM · Fri 8 AM–12 PM · Sat–Sun closed
    Address
    1601 A St, Helena, MT 59601
  8. Based in Helena

    52/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.8★ from 24 Google reviews, listed on Google as “Plumber”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 24 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    783 Carter Dr Suite A, Helena, MT 59601
  9. Based in Helena Valley West Central, 13 mi away

    52/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.2★ from 9 Google reviews, listed on Google as “Plumber”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.2★ from 9 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
  10. Based in Helena

    51/100CR Score

    Ranked #22 because of its Google rating and review volume: 4.8★ from 45 Google reviews.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 45 Google reviews
    Hours
    Mon–Fri 7 AM–5 PM · Sat–Sun closed
    Address
    1410 Orange Ave, Helena, MT 59601
  11. Based in Helena Valley West Central, 20 mi away

    51/100CR Score

    Ranked #24 because of its Google rating and trade focus: 4.8★ from 19 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 19 Google reviews
    Hours
    Mon–Fri 7 AM–5 PM · Sat–Sun closed
  12. Based in Helena Valley West Central, 23 mi away

    50/100CR Score

    Ranked #25 because of its Google rating and trade focus: 4.8★ from 18 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 18 Google reviews
    Hours
    Mon–Fri 7 AM–5 PM · Sat–Sun closed

All 31 HVAC contractors

#1 to #25 are shown in full above. Here are #26 to #31, in CR Score order; each links to its profile.

HVAC contractors in Helena, ranks 26 to 31
RankBusinessCR ScoreGoogle ratingDistance
26Hamper's Plumbing & Heating504.3★ (13)3 mi
27McGlynn Plumbing and Heating494.5★ (6)2 mi
28Montana City Plumbing and Heating493.4★ (5)In Helena
29All Temp Heating & Cooling484.3★ (8)21 mi
30American Plumbing & Heating485.0★ (4)6 mi
31CCS Refrigeration461.8★ (5)18 mi

Also serving Helena

19 more HVAC contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.

Unranked HVAC contractors serving Helena
BusinessGoogle ratingDistance
A & M Plumbing & Heating LLC5.0★ (1)4 mi
AM PM HVAC Repair1 mi
BP Plumbing and Heating LLC5.0★ (1)In Helena
BSA Maintenance5.0★ (1)1 mi
Capital Plumbing & Heating5.0★ (1)In Helena
Hamper's Plumbing & Heating5.0★ (2)In Helena
J.B. Plumbing and Heating3.0★ (2)1 mi
Jinx's Mobile Home Services15 mi
LONG Building Technologies5.0★ (1)In Helena
Old Montana Electric5.0★ (8)In Helena
PJ's RefrigerationIn Helena
Progress Plumbing & HeatingIn Helena
Ridge Heating & CoolingIn Helena
Rocky Mountain Refrigeration, LLC1 mi
Rugged Ridge Plumbing and Heating5.0★ (2)25 mi
SERVPRO of Helena & Great Falls4.8★ (232)In Helena
Sleeping Giant Mechanical5.0★ (2)In Helena
Superior Heating IncIn Helena
TC Plumbing and Heating5.0★ (1)15 mi

How much do HVAC contractors cost in Helena?

National price ranges in USD, not adjusted for Helena. Each row names its basis and the month we checked it.

How much do HVAC contractors cost in Helena?
JobLowTypicalHighBasisChecked
AC replacement$3,887$5,978$8,073Per system, installed (unit plus labor); typical range of customer-reported jobs. US national rangeOctober 2026
Furnace replacement$2,823$4,814$6,896Per system, installed; typical range of customer-reported jobs. US national rangeOctober 2026

When to hire an HVAC contractor in Montana

In Montana, furnace and heat pump calls peak in the coldest winter weeks and AC calls in summer heat waves. Spring and fall are the easiest times to book maintenance or a replacement.

How we ranked Helena HVAC contractors

We scored 31 Helena HVAC contractors on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Helena data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

HVAC contractors in Helena: frequently asked questions

Who is the best HVAC contractor in Helena?

By CR Score, the highest-ranked HVAC contractor in Helena, MT is All Season Heating & Air Conditioning, LLC with a CR Score of 63/100. It has 4.9★ from 763 Google reviews. American Sheet Metal (#2) and 3 Brothers Plumbing & Heating (#3) follow. We ranked 31 HVAC contractors on ten factors, last updated October 22, 2026.

How many HVAC contractors are there in Helena?

ContractorsRanked ranks 31 HVAC contractors serving Helena, MT. 17 of them are based in Helena; the rest serve it from nearby towns. Another 19 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in Helena are open 24/7?

6 ranked HVAC contractors in Helena post 24/7 hours. The highest-ranked are Ambient Air Solutions (#6), City Plumbing & Heating Co (#7) and Rocky Mountain Refrigeration (#11). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Helena work on weekends?

7 of 31 ranked HVAC contractors post Saturday hours and 7 post Sunday hours. The highest-ranked open Saturdays are Ambient Air Solutions (#6), City Plumbing & Heating Co (#7) and A1 Mitchell's Heating & Cooling LLC (#9). Posted hours are office hours; crews may book weekend jobs separately.

How much does ac replacement cost in Helena?

AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Helena. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Helena HVAC contractors have?

The median Google rating among 31 rated HVAC contractors in Helena is 4.6★, with a median of 13 reviews. All Season Heating & Air Conditioning, LLC has the most, 763 reviews, and ranks #1. We adjust ratings for review count, so a few five-star reviews cannot top the list.

When is the best time to hire an HVAC contractor in Helena?

In Montana, furnace and heat pump calls peak in the coldest winter weeks and AC calls in summer heat waves. Spring and fall are the easiest times to book maintenance or a replacement.

How does ContractorsRanked rank HVAC contractors?

Each HVAC contractor gets a 0–100 CR Score from ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Update log for Helena

  1. October 2026: CR Scores recalculated for 31 hvac contractors serving Helena.
  2. October 2026: 1 duplicate listing merged.