93/100CR Score
Ranked #1 because of its Google rating and availability: 4.7★ from 3,311 Google reviews, open 24/7.
- 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
Best HVAC Contractors in Oakland, CA (2026)
578 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Oakland: Albert Nahman Plumbing, Heating, and Cooling, CR Score 93/100; 4.7★ from 3,311 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Service Champions, posts 24/7 hours; ranked #2 of 578.
- 2
Most-reviewed: Service Champions, 5,220 Google reviews at 4.9★, the most of 578 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
578 Oakland HVAC contractors are ranked here by CR Score, from 8 published factors. 132 are open 24/7, 354 open Saturdays and 277 open Sundays, based on posted hours. The median Google rating is 4.9★ across 578 rated businesses.
Top 10 HVAC contractors in Oakland at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Albert Nahman Plumbing, Heating, and Cooling | 93 | 4.7★ (3,311) | Berkeley, 3 mi away | 24/7 | Overall |
| 2 | Service Champions | 92 | 4.9★ (5,220) | Martinez, 17 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Cabrillo Plumbing, Heating & Air | 92 | 4.9★ (966) | San Francisco, 9 mi away | 24/7 | — |
| 4 | Heise's Plumbing | 92 | 4.9★ (1,454) | San Francisco, 11 mi away | 24/7 | — |
| 5 | Chill Heating and Cooling | 91 | 5.0★ (1,017) | San Ramon, 16 mi away | 24/7 | — |
| 6 | Hometown Heating and Air Conditioning | 90 | 4.9★ (2,463) | Concord, 19 mi away | 24/7 | — |
| 7 | Arch Plumbing Inc. | 90 | 4.9★ (286) | San Francisco, 8 mi away | 24/7 | — |
| 8 | Jazz Heating, Air Conditioning and Plumbing | 90 | 4.9★ (3,438) | Pleasanton, 23 mi away | 24/7 | — |
| 9 | Chill Heating and Cooling | 89 | 5.0★ (481) | Walnut Creek, 15 mi away | 24/7 | — |
| 10 | Perfect Star Heating, Cooling, & Electrical | 89 | 4.9★ (1,255) | Concord, 18 mi away | 24/7 | — |
The 578 best HVAC contractors in Oakland, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Martinez, 17 mi away
92/100CR ScoreRanked #2 because of its Google rating and review volume: 4.9★ from 5,220 Google reviews, the most Google reviews on this list (5,220).
- 4.9★ from 5,220 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 261 Arthur Rd, Martinez, CA 94553
Based in San Francisco, 9 mi away
92/100CR ScoreRanked #3 because of its Google rating and availability: 4.9★ from 966 Google reviews, open 24/7.
- 4.9★ from 966 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 78 Dorman Ave, San Francisco, CA 94124
Based in San Francisco, 11 mi away
92/100CR ScoreRanked #4 because of its Google rating and availability: 4.9★ from 1,454 Google reviews, open 24/7.
- 4.9★ from 1,454 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 260 Ocean Ave, San Francisco, CA 94112
Based in San Ramon, 16 mi away
91/100CR ScoreRanked #5 because of its Google rating and availability: 5.0★ from 1,017 Google reviews, open 24/7.
- 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, 19 mi away
90/100CR ScoreRanked #6 because of its Google rating and availability: 4.9★ from 2,463 Google reviews, open 24/7.
- 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 San Francisco, 8 mi away
90/100CR ScoreRanked #7 because of its Google rating and availability: 4.9★ from 286 Google reviews, open 24/7.
- 4.9★ from 286 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 121 Quint St STE 5E, San Francisco, CA 94124
Based in Pleasanton, 23 mi away
90/100CR ScoreRanked #8 because of its Google rating and availability: 4.9★ from 3,438 Google reviews, open 24/7.
- 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 Walnut Creek, 15 mi away
89/100CR ScoreRanked #9 because of its Google rating and availability: 5.0★ from 481 Google reviews, open 24/7.
- 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, 18 mi away
89/100CR ScoreRanked #10 because of its Google rating and availability: 4.9★ from 1,255 Google reviews, open 24/7.
- 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 San Francisco, 9 mi away
89/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 1,876 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 1,876 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 1455 Bancroft Ave, San Francisco, CA 94124
Based in Danville, 16 mi away
89/100CR ScoreRanked #12 because of its Google rating and availability: 4.9★ from 602 Google reviews, open 24/7.
- 4.9★ from 602 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 801 Lancelot Ct, Danville, CA 94526
Based in Pleasanton, 21 mi away
89/100CR ScoreRanked #13 because of its Google rating and availability: 4.8★ from 2,337 Google reviews, open 24/7.
- 4.8★ from 2,337 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7020 Commerce Dr, Pleasanton, CA 94588
#14 Local Plumbing
Based in Sausalito, 12 mi away
89/100CR ScoreRanked #14 because of its Google rating and availability: 5.0★ from 211 Google reviews, open 24/7.
- 5.0★ from 211 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 323 Pine St Ste. F, Sausalito, CA 94965
#15 Ongaro & Sons
Based in San Anselmo, 20 mi away
88/100CR ScoreRanked #15 because of its Google rating and availability: 4.9★ from 762 Google reviews, open 24/7.
- 4.9★ from 762 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11 Ross Ave, San Anselmo, CA 94960
#16 1-888-Heat-Pumps
Based in Berkeley, 3 mi away
88/100CR ScoreRanked #16 because of its Google rating and availability: 5.0★ from 45 Google reviews, open 24/7.
- 5.0★ from 45 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1826 Prince St, Berkeley, CA 94703
#17 Afterglow
Based in Albany, 2 mi away
88/100CR ScoreRanked #17 because of its Google rating and availability: 4.9★ from 47 Google reviews, open 24/7.
- 4.9★ from 47 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Hayward, 15 mi away
88/100CR ScoreRanked #18 because of its Google rating and availability: 4.7★ from 863 Google reviews, open 24/7.
- 4.7★ from 863 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3266 Investment Blvd, Hayward, CA 94545
Based in Concord, 20 mi away
88/100CR ScoreRanked #19 because of its Google rating and availability: 4.8★ from 1,046 Google reviews, open 24/7.
- 4.8★ from 1,046 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2440 Sprig Ct, Concord, CA 94520
#20 Breathable
Based in Oakland
88/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 200 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 200 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat–Sun 10 AM–5 PM
- Address
- 344 20th St, Oakland, CA 94612
#21 Fuse Service
Based in Richmond, 8 mi away
88/100CR ScoreRanked #21 because of its Google rating and availability: 4.9★ from 94 Google reviews, open 24/7.
- 4.9★ from 94 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 173 Lakeshore Ct, Richmond, CA 94804
Based in Pleasant Hill, 15 mi away
87/100CR ScoreRanked #22 because of its Google rating and availability: 4.8★ from 370 Google reviews, open 24/7.
- 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 Hayward, 13 mi away
87/100CR ScoreRanked #23 because of its Google rating and availability: 4.9★ from 162 Google reviews, open 24/7.
- 4.9★ from 162 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1930 W Winton Ave # 4, Hayward, CA 94545
Based in Alameda, 12 mi away
87/100CR ScoreRanked #24 because of its Google rating and availability: 4.9★ from 130 Google reviews, open 24/7.
- 4.9★ from 130 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in San Francisco, 7 mi away
87/100CR ScoreRanked #25 because of its Google rating and availability: 4.9★ from 69 Google reviews, open 24/7.
- 4.9★ from 69 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1725 Montgomery St, San Francisco, CA 94111
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 578 ranked HVAC contractors here; the rest are on their profiles.
Also serving Oakland
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 |
|---|---|---|
| A.L.B HVAC refrigeration service | 4.7★ (12) | In Oakland |
| Aero HVAC Controller | In Oakland | |
| Anchor Heating & Cooling, Inc. | 4.3★ (16) | 3 mi |
| Anderson AC and Heat. | In Oakland | |
| Big Blue Plumbing | 4.7★ (575) | 2 mi |
| Cali HVAC | 5.0★ (97) | 18 mi |
| Duct Cleaning INC Oakland | In Oakland | |
| E-fficient HVAC | 5.0★ (2) | In Oakland |
| Five Or Free Electrical Heating & Air Solutions | 4.8★ (219) | In Oakland |
| Galaxy Heating & Air Conditioning | 4.7★ (25) | 10 mi |
| Gill's Electric | 3.7★ (17) | In Oakland |
| Heating And Air Conditioning | 5.0★ (2) | In Oakland |
| Master Cooling & Heating OL | In Oakland | |
| Oakland AC Repair Heating & Cooling | In Oakland | |
| Panda Heating & Cooling | 3.5★ (2) | In Oakland |
| ProTech HVAC Expert | In Oakland | |
| ProTurns | In Oakland | |
| rabboni mechanical | In Oakland | |
| SKASOL Incorporated | 5.0★ (1) | In Oakland |
| Toms HVAC Pros Oakland CA | 5.0★ (2) | In Oakland |
How much do HVAC contractors cost in Oakland?
National price ranges in USD, not adjusted for Oakland. 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 Oakland HVAC contractors
We scored 578 Oakland HVAC contractors on 8 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. Unknown factors are left out of the score, 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 Oakland data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |
HVAC contractors in Oakland: frequently asked questions
Who is the best HVAC contractor in Oakland?
By CR Score, the highest-ranked HVAC contractor in Oakland, CA is Albert Nahman Plumbing, Heating, and Cooling with a CR Score of 93/100. It has 4.7★ from 3,311 Google reviews. It is open 24/7. Service Champions (#2) and Cabrillo Plumbing, Heating & Air (#3) follow. We ranked 578 HVAC contractors on 8 factors, last updated October 22, 2026.
How many HVAC contractors are there in Oakland?
ContractorsRanked ranks 578 HVAC contractors serving Oakland, CA. 4 of them are based in Oakland; 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 Oakland are open 24/7?
132 ranked HVAC contractors in Oakland post 24/7 hours. The highest-ranked are Albert Nahman Plumbing, Heating, and Cooling (#1), Service Champions (#2) and Cabrillo Plumbing, Heating & Air (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Oakland work on weekends?
354 of 578 ranked HVAC contractors post Saturday hours and 277 post Sunday hours. The highest-ranked open Saturdays are Albert Nahman Plumbing, Heating, and Cooling (#1), Service Champions (#2) and Cabrillo Plumbing, Heating & Air (#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 Oakland?
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 Oakland. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Oakland HVAC contractors have?
The median Google rating among 578 rated HVAC contractors in Oakland is 4.9★, with a median of 17 reviews. Service Champions has the most, 5,220 reviews, and ranks #2. 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 Oakland?
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 Oakland
- October 2026: CR Scores recalculated for 578 hvac contractors serving Oakland.
- October 2026: 4 duplicate listings merged.
More HVAC contractors and Oakland pages
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Other trades in Oakland
- Roofers in Oakland725 ranked
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- Electricians in Oakland545 ranked
- General contractors in Oakland1095 ranked
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- Kitchen remodelers in Oakland525 ranked
- Bathroom remodelers in Oakland497 ranked
- Flooring contractors in Oakland337 ranked
- Tile installers in Oakland71 ranked
- Drywall contractors in Oakland39 ranked
- Concrete contractors in Oakland282 ranked
- Fence contractors in Oakland120 ranked
- Deck builders in Oakland166 ranked
- Siding contractors in Oakland102 ranked
- Window installers in Oakland305 ranked
- Gutter installers in Oakland192 ranked
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- Solar installers in Oakland288 ranked
- Garage door repair companies in Oakland254 ranked
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- Home builders in Oakland460 ranked
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- All contractors in Oakland