Skip to content
ContractorsRanked

Best HVAC Contractors in San Ramon, CA (2026)

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

The short answer

  1. 1

    Best overall in San Ramon: Chill Heating and Cooling, CR Score 95/100; 5.0★ from 1,017 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Jazz Heating, Air Conditioning and Plumbing, posts 24/7 hours; ranked #2 of 585.

  3. 6

    Most-reviewed: Service Champions, 5,220 Google reviews at 4.9★, the most of 585 ranked; ranked #6.

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

585 San Ramon HVAC contractors are ranked here by CR Score, from 8 published factors. 158 are open 24/7, 362 open Saturdays and 277 open Sundays, based on posted hours. The median Google rating is 4.9★ across 585 rated businesses.

Top 10 HVAC contractors in San Ramon at a glance

Top 10 HVAC contractors in San Ramon at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Chill Heating and Cooling955.0★ (1,017)San Ramon24/7Overall
2Jazz Heating, Air Conditioning and Plumbing944.9★ (3,438)Pleasanton, 9 mi away24/7Emergencies
3Service Champions934.9★ (4,721)Livermore, 12 mi away24/7—
4Service Champions934.8★ (2,337)Pleasanton, 7 mi away24/7—
5Comfy Heating & Air Conditioning924.9★ (602)Danville, 3 mi away24/7—
6Service Champions924.9★ (5,220)Martinez, 17 mi away24/7Most reviews
7Perfect Star Heating, Cooling, & Electrical914.9★ (1,255)Concord, 12 mi away24/7—
8Hometown Heating and Air Conditioning914.9★ (2,463)Concord, 16 mi away24/7—
9Chill Heating and Cooling905.0★ (481)Walnut Creek, 11 mi away24/7—
10Perfect Star Heating, Cooling, & Electrical904.9★ (2,331)Antioch, 18 mi away24/7—

The 585 best HVAC contractors in San Ramon, 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.

  4. #4 Service Champions

    Based in Pleasanton, 7 mi away

    93/100CR Score

    Ranked #4 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
    View profile for Service Champions(925) 248-3458

  6. #6 Service Champions

    Based in Martinez, 17 mi away

    92/100CR Score

    Ranked #6 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
    View profile for Service Champions(925) 281-0532

  18. #18 Art of Comfort

    Based in Pleasanton, 10 mi away

    89/100CR Score

    Ranked #18 because of its Google rating and availability: 5.0★ from 153 Google reviews, open 24/7.

    • 5.0★ from 153 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1048 Serpentine Ln #314, Pleasanton, CA 94566
    View profile for Art of Comfort(925) 230-3952

  19. #19 Eagle Air

    Based in Livermore, 15 mi away

    89/100CR Score

    Ranked #19 because of its Google rating and availability: 4.9★ from 549 Google reviews, open 24/7.

    • 4.9★ from 549 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5542 Brisa St Ste B, Livermore, CA 94550
    View profile for Eagle Air(925) 456-4991

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 585 ranked HVAC contractors here; the rest are on their profiles.

HVAC contractors in San Ramon, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Smart Heating and Air Conditioning884.9★ (324)15 mi
27ADRIUM service solutions885.0★ (154)In San Ramon
28QC Guys - Whole House Fan Experts885.0★ (549)10 mi
29Bay Area Climate Control884.9★ (162)12 mi
30Cabrillo Plumbing, Heating & Air884.9★ (966)23 mi
31Qualtech Heating & Cooling884.7★ (87)3 mi
32Rooter Hero Plumbing & Air of San Lorenzo874.7★ (265)10 mi
33Villquin Air Services874.9★ (172)13 mi
34Service Hero Plumbing & Air874.5★ (1,252)12 mi
35Smart Heating and Air Conditioning875.0★ (151)16 mi
36VOLTA Heating, Air Conditioning & Appliance Services875.0★ (103)In San Ramon
37Fuse service875.0★ (29)3 mi
38Reliable Appliance, Heating and Air874.9★ (2,473)13 mi
39AC & Heating Solutions874.9★ (73)9 mi
40Galaxy Heating & Air Conditioning874.8★ (50)5 mi
41Albert Nahman Plumbing, Heating, and Cooling874.6★ (474)13 mi
42Barker Heating & Cooling864.8★ (1,930)16 mi
43Chill-Hub HVAC and Refrigeration Service864.9★ (358)9 mi
44Comfy Heating & Air Conditioning Inc.864.8★ (111)12 mi
45Same Day Air Conditioning & Heating864.5★ (700)13 mi
46Cyclone Air Systems Inc864.9★ (109)15 mi
47Fuse Service864.9★ (54)11 mi
48Arch Plumbing Inc.864.9★ (286)23 mi
49Cabrillo Plumbing, Heating & Air865.0★ (208)23 mi
50Moore Mechanical864.8★ (1,046)15 mi

Also serving San Ramon

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.

Unranked HVAC contractors serving San Ramon
BusinessGoogle ratingDistance
AC Repair Danville5.0★ (2)3 mi
AC Repair Pleasanton5.0★ (2)7 mi
AC Repair San Ramon3.5★ (2)3 mi
All HVAC Depot LLC5.0★ (1)In San Ramon
Automatic Control Engineering4.5★ (2)12 mi
Automation-SolarIn San Ramon
Cali HVAC5.0★ (97)16 mi
California HVAC4.9★ (59)13 mi
Delcon Heating & Air Conditioning5.0★ (2)12 mi
Double R Heating & Air Conditioning4.9★ (174)13 mi
Ferreira Service5.0★ (1)In San Ramon
Glover & Son Heating & Air Inc3.0★ (2)6 mi
Insulation & Air Duct Crew5.0★ (2)11 mi
LEET Kitchen & Bathroom Remodeling5.0★ (2)In San Ramon
Panda Heating & Cooling3.5★ (2)12 mi
Positive Heating & Cooling CoIn San Ramon
RJA Group LLC3.0★ (2)9 mi
Simple Air3.0★ (2)3 mi
Sugar Bear Home Services4.9★ (369)25 mi
Tyndall HVAC, Inc4.9★ (292)18 mi

How much do HVAC contractors cost in San Ramon?

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

How much do HVAC contractors cost in San Ramon?
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

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).

  1. Search the business name or license number on the Contractors State License Board (CSLB) license lookup.
  2. Check that the status is active and the name matches the contract or truck.
  3. 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 San Ramon HVAC contractors

We scored 585 San Ramon 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn San Ramon data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

HVAC contractors in San Ramon: frequently asked questions

Who is the best HVAC contractor in San Ramon?

By CR Score, the highest-ranked HVAC contractor in San Ramon, CA is Chill Heating and Cooling with a CR Score of 95/100. It has 5.0★ from 1,017 Google reviews. It is open 24/7. Jazz Heating, Air Conditioning and Plumbing (#2) and Service Champions (#3) follow. We ranked 585 HVAC contractors on 8 factors, last updated October 22, 2026.

How many HVAC contractors are there in San Ramon?

ContractorsRanked ranks 585 HVAC contractors serving San Ramon, CA. 4 of them are based in San Ramon; 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 San Ramon are open 24/7?

158 ranked HVAC contractors in San Ramon post 24/7 hours. The highest-ranked are Chill Heating and Cooling (#1), Jazz Heating, Air Conditioning and Plumbing (#2) and Service Champions (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in San Ramon work on weekends?

362 of 585 ranked HVAC contractors post Saturday hours and 277 post Sunday hours. The highest-ranked open Saturdays are Chill Heating and Cooling (#1), Jazz Heating, Air Conditioning and Plumbing (#2) and Service Champions (#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 San Ramon?

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 San Ramon. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do San Ramon HVAC contractors have?

The median Google rating among 585 rated HVAC contractors in San Ramon is 4.9★, with a median of 16 reviews. Service Champions has the most, 5,220 reviews, and ranks #6. 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 San Ramon?

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 San Ramon

  1. October 2026: CR Scores recalculated for 585 hvac contractors serving San Ramon.
  2. October 2026: 5 duplicate listings merged.

More HVAC contractors and San Ramon pages

Other trades in San Ramon