68/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 1,417 Google reviews, the most in Atwater.
- 4.9★ from 1,417 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 701 Enterprise Ct, Atwater, CA 95301
Best HVAC Contractors in Atwater, CA (2026)
68 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Atwater: ARMS Air Conditioning And Heating, CR Score 68/100; 4.9★ from 1,417 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Cosmic Comfort Electrical & HVAC | Merced, posts 24/7 hours; ranked #2 of 68.
- 3
Most-reviewed: Wally Falke's Heating & Air Conditioning, 1,295 Google reviews at 4.9★, the most of 68 ranked after ARMS Air Conditioning And Heating; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
68 Atwater HVAC contractors are ranked here by CR Score, from ten published factors. 19 are open 24/7, 47 open Saturdays and 28 open Sundays, based on posted hours. The median Google rating is 4.9★ across 68 rated businesses.
Top 10 HVAC contractors in Atwater at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | ARMS Air Conditioning And Heating | 68 | 4.9★ (1,417) | Atwater | 24/7 | Overall |
| 2 | Cosmic Comfort Electrical & HVAC | Merced | 67 | 4.9★ (719) | Atwater | 24/7 | Emergencies |
| 3 | Wally Falke's Heating & Air Conditioning | 64 | 4.9★ (1,295) | Turlock, 16 mi away | 24/7 | Most reviews |
| 4 | N & C Heating and Air LLC | 63 | 4.9★ (185) | Merced, 8 mi away | 24/7 | — |
| 5 | Perez Repair Heating & Air | 62 | 4.8★ (103) | Merced, 5 mi away | 24/7 | — |
| 6 | Evolution Heating & Cooling | 61 | 4.9★ (312) | Turlock, 17 mi away | 24/7 | — |
| 7 | Thorsen's - Norquist, Inc. | 61 | 4.8★ (500) | Turlock, 18 mi away | 24/7 | — |
| 8 | Mel's Heating & Air Corporation | 61 | 4.8★ (398) | Turlock, 18 mi away | 24/7 | — |
| 9 | ZACS AIR SYSTEMS | 61 | 4.9★ (59) | Merced, 8 mi away | 24/7 | — |
| 10 | Young's Air Conditioning | 60 | 5.0★ (325) | Los Banos, 24 mi away | 24/7 | — |
The 68 best HVAC contractors in Atwater, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Atwater
67/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 719 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 719 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3564 Atwater Blvd, Atwater, CA 95301
Based in Turlock, 16 mi away
64/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 1,295 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 1,295 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1575 Lander Ave, Turlock, CA 95380
Based in Merced, 8 mi away
63/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 185 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 185 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3811 N St #59, Merced, CA 95348
Based in Merced, 5 mi away
62/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.8★ from 103 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 103 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Turlock, 17 mi away
61/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 312 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 312 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1220 S Walnut Rd, Turlock, CA 95380
Based in Turlock, 18 mi away
61/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 500 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 500 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2310 N Walnut Rd, Turlock, CA 95382
Based in Turlock, 18 mi away
61/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.8★ from 398 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.8★ from 398 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1745 McCormick St, Turlock, CA 95380
Based in Merced, 8 mi away
61/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 59 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 59 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6 E 27th St, Merced, CA 95340
Based in Los Banos, 24 mi away
60/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 325 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 325 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 25 West G St, Los Banos, CA 93635
Based in Atwater
60/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 35 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
Based in Los Banos, 24 mi away
59/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.8★ from 328 Google reviews, listed on Google as “Heating contractor”.
- 4.8★ from 328 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 821 4th St, Los Banos, CA 93635
Based in Turlock, 17 mi away
59/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 79 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 79 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 200 N Broadway Ste D, Turlock, CA 95380
#14 Air Tactics
Based in Atwater
59/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 17 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 17 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#15 Holl Sheet Metal
Based in Merced, 6 mi away
59/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 280 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 280 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 3811 State Hwy 59, Merced, CA 95348
Based in Ceres, 12 mi away
59/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 30 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Turlock, 16 mi away
58/100CR ScoreRanked #17 because of its Google rating and review volume: 4.8★ from 396 Google reviews.
- 4.8★ from 396 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 821 W F St, Turlock, CA 95380
Based in Atwater
58/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.8★ from 81 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 81 Google reviews
- Hours
- Mon–Fri 7 AM–4 PM · Sat–Sun closed
Based in Atwater
58/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.1★ from 18 Google reviews, listed on Google as “HVAC contractor”.
- 4.1★ from 18 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 8 AM–3 PM · Sun 8 AM–5 PM
#20 Comfort Zone
Based in Atwater
57/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 7 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
Based in Los Banos, 24 mi away
57/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.8★ from 652 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 652 Google reviews
- Hours
- Mon–Sat 6 AM–10 PM · Sun closed
- Address
- 940 G St, Los Banos, CA 93635
Based in Atwater
57/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.8★ from 41 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 41 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 3600 Atwater Blvd, Atwater, CA 95301
#23 Jantz Electrical
Based in Atwater
56/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.4★ from 5 Google reviews, listed on Google as “HVAC contractor”.
- 4.4★ from 5 Google reviews
- Hours
- Mon–Sun 9 AM–5 PM
- Address
- 1120 Commerce Ave #142, Atwater, CA 95301
Based in Merced, 8 mi away
56/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 35 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 8 AM–12 PM · Sun closed
- Address
- 20 W Olive Ave, Merced, CA 95348
#25 Calor Air HVAC
Based in Merced, 4 mi away
56/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 7 Google reviews
- Hours
- Mon–Fri 7 AM–10 PM · Sat–Sun 7 AM–5 PM
HVAC contractors ranked #26 to #50
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 68 ranked HVAC contractors here; the rest are on their profiles.
Also serving Atwater
20 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.
| Business | Google rating | Distance |
|---|---|---|
| Air Accommodations | 5.0★ (1) | 16 mi |
| Air Boss Air-conditioning heating | 5.0★ (1) | 8 mi |
| Air Eaze Heating & Air Conditioning | 4.5★ (2) | 7 mi |
| ALL- Care heating & Air | 8 mi | |
| Alpha Finance Group | 5.0★ (1) | 24 mi |
| Best Results Heating And Air | 3 mi | |
| California HVAC Mechanical LLC | 5.0★ (1) | 24 mi |
| Central Valley Airconditioning | In Atwater | |
| Comfort zone mechanical | 12 mi | |
| Commercial Filter Services Inc | 5.0★ (1) | 17 mi |
| Golden Valley Heating & Air | 8 mi | |
| Grissom Construction Inc. | 11 mi | |
| Martinez Heating and Air Conditioning Inc | 6 mi | |
| Phenomenal Auto Detailing | 5.0★ (119) | 25 mi |
| Phenomenal heat and air | 5.0★ (3) | 25 mi |
| Placidos Heat and Air | 5.0★ (1) | 18 mi |
| Roo's Heating And Air Conditioning | 8 mi | |
| T & T Solutions | 5.0★ (1) | In Atwater |
| Therma Tech Inc | 17 mi | |
| Workman Duct Solutions | 5.0★ (1) | In Atwater |
How much do HVAC contractors cost in Atwater?
National price ranges in USD, not adjusted for Atwater. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| AC replacement | $3,887 | $5,978 | $8,073 | Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 2026 |
| Furnace replacement | $2,823 | $4,814 | $6,896 | Per system, installed; typical range of customer-reported jobs. US national range | October 2026 |
How to check an HVAC contractor's license in California
In California, Contractors State License Board (CSLB) licenses C-20 Warm-Air Heating, Ventilating and Air-Conditioning contractor license.
Jobs of $1,000 or more in labor and materials (from January 1, 2025).
- Search the business name or license number on the Contractors State License Board (CSLB) license lookup.
- Check that the status is active and the name matches the contract or truck.
- Ask for proof of insurance before work starts.
No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.
Guide checked October 2026. How we verify licenses
When to hire an HVAC contractor in California
California's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.
How we ranked Atwater HVAC contractors
We scored 68 Atwater 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.
| Factor | Weight | Computed from | In Atwater data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |
HVAC contractors in Atwater: frequently asked questions
Who is the best HVAC contractor in Atwater?
By CR Score, the highest-ranked HVAC contractor in Atwater, CA is ARMS Air Conditioning And Heating with a CR Score of 68/100. It has 4.9★ from 1,417 Google reviews. It is open 24/7. Cosmic Comfort Electrical & HVAC | Merced (#2) and Wally Falke's Heating & Air Conditioning (#3) follow. We ranked 68 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in Atwater?
ContractorsRanked ranks 68 HVAC contractors serving Atwater, CA. 14 of them are based in Atwater; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in Atwater are open 24/7?
19 ranked HVAC contractors in Atwater post 24/7 hours. The highest-ranked are ARMS Air Conditioning And Heating (#1), Cosmic Comfort Electrical & HVAC | Merced (#2) and Wally Falke's Heating & Air Conditioning (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Atwater work on weekends?
47 of 68 ranked HVAC contractors post Saturday hours and 28 post Sunday hours. The highest-ranked open Saturdays are ARMS Air Conditioning And Heating (#1), Cosmic Comfort Electrical & HVAC | Merced (#2) and Wally Falke's Heating & Air Conditioning (#3). Posted hours are office hours; crews may book weekend jobs separately.
How do I check an HVAC contractor's license in California?
In California, Contractors State License Board (CSLB) handles licensing and covers C-20 Warm-Air Heating, Ventilating and Air-Conditioning contractor license. Search the business or license number at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx. Jobs of $1,000 or more in labor and materials (from January 1, 2025).
How much does ac replacement cost in Atwater?
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 Atwater. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Atwater HVAC contractors have?
The median Google rating among 68 rated HVAC contractors in Atwater is 4.9★, with a median of 34 reviews. ARMS Air Conditioning And Heating has the most, 1,417 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 Atwater?
California's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.
Update log for Atwater
- October 2026: CR Scores recalculated for 68 hvac contractors serving Atwater.
- October 2026: 3 duplicate listings merged.
More HVAC contractors and Atwater pages
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