66/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 5,220 Google reviews, the most in Walnut Creek.
- 4.9★ from 5,220 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 261 Arthur Rd, Martinez, CA 94553
Best HVAC Contractors in Walnut Creek, CA (2026)
533 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Walnut Creek: Service Champions, CR Score 66/100; 4.9★ from 5,220 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Hometown Heating and Air Conditioning, posts 24/7 hours; ranked #2 of 533.
- 13
Most-reviewed: Service Champions, 4,721 Google reviews at 4.9★, the most of 533 ranked after Service Champions; ranked #13.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
533 Walnut Creek HVAC contractors are ranked here by CR Score, from ten published factors. 136 are open 24/7, 320 open Saturdays and 236 open Sundays, based on posted hours. The median Google rating is 4.9★ across 533 rated businesses.
Top 10 HVAC contractors in Walnut Creek at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Service Champions | 66 | 4.9★ (5,220) | Martinez, 7 mi away | 24/7 | Overall |
| 2 | Hometown Heating and Air Conditioning | 65 | 4.9★ (2,463) | Concord, 7 mi away | 24/7 | Emergencies |
| 3 | Chill Heating and Cooling | 65 | 5.0★ (481) | Walnut Creek | 24/7 | — |
| 4 | Perfect Star Heating, Cooling, & Electrical | 65 | 4.9★ (1,255) | Concord, 5 mi away | 24/7 | — |
| 5 | Reliable Appliance, Heating and Air | 64 | 4.9★ (2,473) | Alamo, 6 mi away | Sat · Sun · Evenings | — |
| 6 | Chill Heating and Cooling | 64 | 5.0★ (1,017) | San Ramon, 10 mi away | 24/7 | — |
| 7 | Freschi Service Experts | 63 | 4.8★ (1,046) | Concord, 8 mi away | 24/7 | — |
| 8 | Perfect Star Heating, Cooling, & Electrical | 63 | 4.9★ (2,331) | Antioch, 14 mi away | 24/7 | — |
| 9 | Albert Nahman Plumbing, Heating, and Cooling | 63 | 4.7★ (3,311) | Berkeley, 12 mi away | 24/7 | — |
| 10 | Comfy Heating & Air Conditioning | 63 | 4.9★ (602) | Danville, 7 mi away | 24/7 | — |
The 533 best HVAC contractors in Walnut Creek, 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 Concord, 7 mi away
65/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 2,463 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 2,463 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4075 Nelson Ave Suite D, Concord, CA 94520
Based in Walnut Creek
65/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 481 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 481 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11 Cll Este, Walnut Creek, CA 94597
Based in Concord, 5 mi away
65/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 1,255 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 1,255 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4415 Cowell Rd, Concord, CA 94518
Based in Alamo, 6 mi away
64/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 2,473 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 2,473 Google reviews
- Hours
- Mon–Sun 6 AM–7 PM
Based in San Ramon, 10 mi away
64/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 1,017 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 1,017 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 23 Beta Ct suite f, San Ramon, CA 94583
Based in Concord, 8 mi away
63/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 1,046 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 1,046 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2440 Sprig Ct, Concord, CA 94520
Based in Antioch, 14 mi away
63/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 2,331 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 2,331 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2595 W 10th St, Antioch, CA 94509
Based in Berkeley, 12 mi away
63/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.7★ from 3,311 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 3,311 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3333 Martin Luther King Jr Way, Berkeley, CA 94703
Based in Danville, 7 mi away
63/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 602 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 602 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 801 Lancelot Ct, Danville, CA 94526
Based in Pleasant Hill, 2 mi away
63/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.8★ from 370 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 370 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3301 Vincent Rd, Pleasant Hill, CA 94523
Based in Pleasanton, 18 mi away
63/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 3,438 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 3,438 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2158 Rheem Dr, Pleasanton, CA 94588
Based in Livermore, 21 mi away
63/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 4,721 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 4,721 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 207 Boeing Ct, Livermore, CA 94551
Based in Concord, 6 mi away
62/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 324 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 324 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1717 Solano Way STE 7, Concord, CA 94520
Based in Pittsburg, 12 mi away
62/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 851 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 851 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 620 Garcia Ave ste a, Pittsburg, CA 94565
Based in Pleasanton, 17 mi away
62/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.8★ from 2,337 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 2,337 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7020 Commerce Dr, Pleasanton, CA 94588
Based in Alamo, 4 mi away
62/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.9★ from 358 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 358 Google reviews
- Hours
- Mon–Fri 8 AM–8 PM · Sat–Sun 9 AM–5 PM
#18 Fuse Service
Based in Walnut Creek
61/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 54 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1557 2nd Ave, Walnut Creek, CA 94597
Based in Brentwood, 21 mi away
61/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 709 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 709 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 570 Valdry Ct C3, Brentwood, CA 94513
Based in Alamo, 4 mi away
61/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 73 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 73 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Concord, 7 mi away
61/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 109 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 109 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1900 Lynwood Dr Suite, Concord, CA 94519
Based in Benicia, 13 mi away
61/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.8★ from 1,142 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 1,142 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 361 W Channel Rd, Benicia, CA 94510
Based in Pittsburg, 12 mi away
60/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 151 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 151 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 928 Jewett Ave, Pittsburg, CA 94565
Based in San Francisco, 22 mi away
60/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.9★ from 966 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 966 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 78 Dorman Ave, San Francisco, CA 94124
#25 Heise's Plumbing
Based in San Francisco, 24 mi away
60/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 1,454 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 1,454 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 260 Ocean Ave, San Francisco, CA 94112
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 533 ranked HVAC contractors here; the rest are on their profiles.
Also serving Walnut Creek
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 |
|---|---|---|
| AC Repair Danville | 5.0★ (2) | 7 mi |
| All Bay HVAC & Construction Co | 3.5★ (2) | 6 mi |
| Artemis Building Co. | 5.0★ (4) | In Walnut Creek |
| Bay Air Systems | 5.0★ (2) | 5 mi |
| Bay Area Climate Control | 4.9★ (162) | 18 mi |
| Bay HVAC Alliance | 5.0★ (2) | 6 mi |
| Celsius Heating and Cooling LLC | 5.0★ (2) | 6 mi |
| Comfy Heating & Air Conditioning Inc. | 4.8★ (111) | 15 mi |
| Discount Plumbing | In Walnut Creek | |
| Double R Heating & Air Conditioning | 4.9★ (174) | 19 mi |
| Eco Energy Bay Area | 4.6★ (11) | In Walnut Creek |
| Freeway Mechanical | 5.0★ (2) | 6 mi |
| Fuse Service | 4.9★ (94) | 15 mi |
| Gold AC & Heating Services | In Walnut Creek | |
| LEET Kitchen Remodeling & Bathroom Remodeling Walnut Creek | In Walnut Creek | |
| Premium Express Heating and Air Conditioning | 5.0★ (2) | 3 mi |
| Proven Heating and Cooling Repair Walnut Creek | In Walnut Creek | |
| Same Day Air Conditioning & Heating | 4.5★ (700) | 20 mi |
| Simple Air | 3.0★ (2) | 7 mi |
| Southland Industries | In Walnut Creek |
How much do HVAC contractors cost in Walnut Creek?
National price ranges in USD, not adjusted for Walnut Creek. 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 Walnut Creek HVAC contractors
We scored 533 Walnut Creek 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 Walnut Creek 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 Walnut Creek: frequently asked questions
Who is the best HVAC contractor in Walnut Creek?
By CR Score, the highest-ranked HVAC contractor in Walnut Creek, CA is Service Champions with a CR Score of 66/100. It has 4.9★ from 5,220 Google reviews. It is open 24/7. Hometown Heating and Air Conditioning (#2) and Chill Heating and Cooling (#3) follow. We ranked 533 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in Walnut Creek?
ContractorsRanked ranks 533 HVAC contractors serving Walnut Creek, CA. 2 of them are based in Walnut Creek; 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 Walnut Creek are open 24/7?
136 ranked HVAC contractors in Walnut Creek post 24/7 hours. The highest-ranked are Service Champions (#1), Hometown Heating and Air Conditioning (#2) and Chill Heating and Cooling (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Walnut Creek work on weekends?
320 of 533 ranked HVAC contractors post Saturday hours and 236 post Sunday hours. The highest-ranked open Saturdays are Service Champions (#1), Hometown Heating and Air Conditioning (#2) and Chill Heating and Cooling (#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 Walnut Creek?
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 Walnut Creek. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Walnut Creek HVAC contractors have?
The median Google rating among 533 rated HVAC contractors in Walnut Creek is 4.9★, with a median of 15 reviews. Service Champions has the most, 5,220 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 Walnut Creek?
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 Walnut Creek
- October 2026: CR Scores recalculated for 533 hvac contractors serving Walnut Creek.
- October 2026: 5 duplicate listings merged.
More HVAC contractors and Walnut Creek pages
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