317 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Oakley: Perfect Star Heating, Cooling, & Electrical, CR Score 65/100; 4.9★ from 2,331 Google reviews; open 24/7.
Best for emergencies (open 24/7): Elite Comfort Systems, posts 24/7 hours; ranked #2 of 317.
Most-reviewed: Service Champions, 5,220 Google reviews at 4.9★, the most of 317 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
317 Oakley HVAC contractors are ranked here by CR Score, from ten published factors. 88 are open 24/7, 182 open Saturdays and 135 open Sundays, based on posted hours. The median Google rating is 4.9★ across 317 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Perfect Star Heating, Cooling, & Electrical | 65 | 4.9★ (2,331) | Antioch, 7 mi away | 24/7 | Overall |
| 2 | Elite Comfort Systems | 64 | 5.0★ (709) | Brentwood, 5 mi away | 24/7 | Emergencies |
| 3 | Stewart Heating, Plumbing and Air Conditioning | 63 | 4.9★ (851) | Pittsburg, 9 mi away | 24/7 | — |
| 4 | Service Champions | 63 | 4.9★ (5,220) | Martinez, 21 mi away | 24/7 | Most reviews |
| 5 | Service Champions | 63 | 4.9★ (4,721) | Livermore, 22 mi away | 24/7 | — |
| 6 | Hometown Heating and Air Conditioning | 63 | 4.9★ (2,463) | Concord, 18 mi away | 24/7 | — |
| 7 | Perfect Star Heating, Cooling, & Electrical | 62 | 4.9★ (1,255) | Concord, 16 mi away | 24/7 | — |
| 8 | Jazz Heating, Air Conditioning and Plumbing | 62 | 4.9★ (3,438) | Pleasanton, 23 mi away | 24/7 | — |
| 9 | Reliable Appliance, Heating and Air | 62 | 4.9★ (2,473) | Alamo, 16 mi away | Sat · Sun · Evenings | — |
| 10 | Tyndall HVAC, Inc | 62 | 4.9★ (292) | Antioch, 4 mi away | 24/7 | — |
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.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 2,331 Google reviews, listed on Google as “HVAC contractor”.
Based in Brentwood, 5 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 709 Google reviews, listed on Google as “HVAC contractor”.
Based in Pittsburg, 9 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 851 Google reviews, listed on Google as “HVAC contractor”.
Based in Martinez, 21 mi away
Ranked #4 because of its Google rating and review volume: 4.9★ from 5,220 Google reviews, the most in Oakley.
Based in Livermore, 22 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 4,721 Google reviews, listed on Google as “HVAC contractor”.
Based in Concord, 18 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 2,463 Google reviews, listed on Google as “HVAC contractor”.
Based in Concord, 16 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 1,255 Google reviews, listed on Google as “HVAC contractor”.
Based in Pleasanton, 23 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 3,438 Google reviews, listed on Google as “HVAC contractor”.
Based in Alamo, 16 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 2,473 Google reviews, listed on Google as “HVAC contractor”.
Based in Antioch, 4 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 292 Google reviews, listed on Google as “HVAC contractor”.
Based in San Ramon, 21 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 1,017 Google reviews, listed on Google as “HVAC contractor”.
Based in Pittsburg, 9 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 151 Google reviews, listed on Google as “HVAC contractor”.
Based in Concord, 17 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 1,046 Google reviews, listed on Google as “HVAC contractor”.
Based in Walnut Creek, 19 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 481 Google reviews, listed on Google as “HVAC contractor”.
Based in Pleasanton, 24 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 2,337 Google reviews, listed on Google as “HVAC contractor”.
Based in Livermore, 21 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 920 Google reviews, listed on Google as “HVAC contractor”.
Based in Danville, 19 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 602 Google reviews, listed on Google as “HVAC contractor”.
Based in Stockton, 23 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 1,140 Google reviews, listed on Google as “HVAC contractor”.
Based in Lathrop, 17 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 284 Google reviews, listed on Google as “HVAC contractor”.
Based in Oakley
Ranked #20 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “HVAC contractor”.
Based in Livermore, 21 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 549 Google reviews, listed on Google as “HVAC contractor”.
Based in Oakley
Ranked #22 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “HVAC contractor”.
Based in Lathrop, 8 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 45 Google reviews, listed on Google as “HVAC contractor”.
Based in Livermore, 20 mi away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 1,930 Google reviews, listed on Google as “HVAC contractor”.
Based in Concord, 19 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 324 Google reviews, listed on Google as “HVAC contractor”.
#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 317 ranked HVAC contractors here; the rest are on their profiles.
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 San Ramon | 3.5★ (2) | 18 mi |
| AirMen Heating & Air | In Oakley | |
| ASM MECHANICAL SERVICES INC | 3.9★ (7) | 5 mi |
| Bay Area Comfort Solutions | In Oakley | |
| Bay HVAC Alliance | 5.0★ (2) | 16 mi |
| Cali Climate Mechanical | 3.7★ (3) | 6 mi |
| Celsius Heating and Cooling LLC | 5.0★ (2) | 16 mi |
| Climate Source HVAC/R LLC | 4.9★ (29) | 18 mi |
| Diablo Boiler | 4.5★ (2) | 5 mi |
| Diablo Valley Comfort Systems | 5.0★ (2) | 13 mi |
| EHC HEATING AND COOLING | 4.7★ (55) | 19 mi |
| Freeway Mechanical | 5.0★ (2) | 16 mi |
| Fuse Service | 4.9★ (54) | 20 mi |
| Galaxy Heating & Air Conditioning | 4.8★ (50) | 22 mi |
| Green Air Heating and Air Conditioning, Inc. | 4.6★ (69) | 18 mi |
| Indoor Climate | In Oakley | |
| Indoor Climate Solutions | In Oakley | |
| Jim's Heating and Air Conditioning | 5.0★ (1) | In Oakley |
| One Hour Heating & Air Conditioning | 5.0★ (26) | 19 mi |
| Utor HVAC Heating and Cooling | In Oakley |
National price ranges in USD, not adjusted for Oakley. 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 |
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).
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
California's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.
We scored 317 Oakley 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 Oakley 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 |