66/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 5,220 Google reviews, the most in Lafayette.
- 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 Lafayette, CA (2026)
569 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Lafayette: 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 569.
- 12
Most-reviewed: Service Champions, 4,721 Google reviews at 4.9★, the most of 569 ranked after Service Champions; ranked #12.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
569 Lafayette HVAC contractors are ranked here by CR Score, from ten published factors. 137 are open 24/7, 343 open Saturdays and 255 open Sundays, based on posted hours. The median Google rating is 4.9★ across 569 rated businesses.
Top 10 HVAC contractors in Lafayette at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Service Champions | 66 | 4.9★ (5,220) | Martinez, 9 mi away | 24/7 | Overall |
| 2 | Hometown Heating and Air Conditioning | 65 | 4.9★ (2,463) | Concord, 10 mi away | 24/7 | Emergencies |
| 3 | Albert Nahman Plumbing, Heating, and Cooling | 64 | 4.7★ (3,311) | Berkeley, 9 mi away | 24/7 | — |
| 4 | Chill Heating and Cooling | 64 | 5.0★ (481) | Walnut Creek, 5 mi away | 24/7 | — |
| 5 | Perfect Star Heating, Cooling, & Electrical | 64 | 4.9★ (1,255) | Concord, 8 mi away | 24/7 | — |
| 6 | Chill Heating and Cooling | 64 | 5.0★ (1,017) | San Ramon, 10 mi away | 24/7 | — |
| 7 | Reliable Appliance, Heating and Air | 63 | 4.9★ (2,473) | Alamo, 9 mi away | Sat · Sun · Evenings | — |
| 8 | Comfy Heating & Air Conditioning | 63 | 4.9★ (602) | Danville, 9 mi away | 24/7 | — |
| 9 | Freschi Service Experts | 63 | 4.8★ (1,046) | Concord, 10 mi away | 24/7 | — |
| 10 | Jazz Heating, Air Conditioning and Plumbing | 63 | 4.9★ (3,438) | Pleasanton, 19 mi away | 24/7 | — |
The 569 best HVAC contractors in Lafayette, 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, 10 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 Berkeley, 9 mi away
64/100CR ScoreRanked #3 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 Walnut Creek, 5 mi away
64/100CR ScoreRanked #4 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, 8 mi away
64/100CR ScoreRanked #5 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 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 Alamo, 9 mi away
63/100CR ScoreRanked #7 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 Danville, 9 mi away
63/100CR ScoreRanked #8 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 Concord, 10 mi away
63/100CR ScoreRanked #9 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 Pleasanton, 19 mi away
63/100CR ScoreRanked #10 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 Antioch, 18 mi away
63/100CR ScoreRanked #11 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 Livermore, 22 mi away
63/100CR ScoreRanked #12 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 Pleasant Hill, 5 mi away
62/100CR ScoreRanked #13 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, 17 mi away
62/100CR ScoreRanked #14 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 Concord, 8 mi away
62/100CR ScoreRanked #15 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, 15 mi away
62/100CR ScoreRanked #16 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 San Francisco, 19 mi away
61/100CR ScoreRanked #17 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
#18 Heise's Plumbing
Based in San Francisco, 21 mi away
61/100CR ScoreRanked #18 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
Based in Alamo, 7 mi away
61/100CR ScoreRanked #19 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
Based in San Francisco, 19 mi away
60/100CR ScoreRanked #20 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 Benicia, 14 mi away
60/100CR ScoreRanked #21 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
#22 Fuse Service
Based in Walnut Creek, 4 mi away
60/100CR ScoreRanked #22 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 Alameda, 10 mi away
60/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ from 130 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 130 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Hayward, 18 mi away
60/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.7★ from 863 Google reviews, listed on Google as “HVAC contractor”.
- 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, 10 mi away
60/100CR ScoreRanked #25 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
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 569 ranked HVAC contractors here; the rest are on their profiles.
Also serving Lafayette
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) | 8 mi |
| All Bay HVAC & Construction Co | 3.5★ (2) | 8 mi |
| Bay Air Systems | 5.0★ (2) | 7 mi |
| Bay HVAC Alliance | 5.0★ (2) | 9 mi |
| California HVAC | 4.9★ (59) | 9 mi |
| Celsius Heating and Cooling LLC | 5.0★ (2) | 9 mi |
| CLASSIC Heating And Air Conditioning | 5.0★ (2) | 6 mi |
| Climate Source HVAC/R LLC | 4.9★ (29) | 8 mi |
| Freeway Mechanical | 5.0★ (2) | 9 mi |
| Fuse service | 5.0★ (29) | 8 mi |
| Green Air Heating and Air Conditioning, Inc. | 4.6★ (69) | 10 mi |
| Plumbing Experts - Plumber in Lafayette,CA | 5.0★ (3) | In Lafayette |
| Premium Express Heating and Air Conditioning | 5.0★ (2) | 5 mi |
| Qualtech Heating & Cooling | 5.0★ (1) | In Lafayette |
| Redfoxheating&cooling | 3.0★ (2) | 8 mi |
| Same Day Air Conditioning & Heating | 4.5★ (700) | 18 mi |
| Simple Air | 3.0★ (2) | 8 mi |
| Sugar Bear Home Services | 4.9★ (369) | 23 mi |
| Tyndall HVAC, Inc | 4.9★ (292) | 20 mi |
| Villquin Air Services | 4.9★ (172) | 18 mi |
How much do HVAC contractors cost in Lafayette?
National price ranges in USD, not adjusted for Lafayette. 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 Lafayette HVAC contractors
We scored 569 Lafayette 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 Lafayette 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 Lafayette: frequently asked questions
Who is the best HVAC contractor in Lafayette?
By CR Score, the highest-ranked HVAC contractor in Lafayette, 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 Albert Nahman Plumbing, Heating, and Cooling (#3) follow. We ranked 569 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in Lafayette?
ContractorsRanked ranks 569 HVAC contractors serving Lafayette, CA. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in Lafayette are open 24/7?
137 ranked HVAC contractors in Lafayette post 24/7 hours. The highest-ranked are Service Champions (#1), Hometown Heating and Air Conditioning (#2) and Albert Nahman Plumbing, Heating, and Cooling (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Lafayette work on weekends?
343 of 569 ranked HVAC contractors post Saturday hours and 255 post Sunday hours. The highest-ranked open Saturdays are Service Champions (#1), Hometown Heating and Air Conditioning (#2) and Albert Nahman Plumbing, 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 Lafayette?
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 Lafayette. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Lafayette HVAC contractors have?
The median Google rating among 569 rated HVAC contractors in Lafayette 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 Lafayette?
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 Lafayette
- October 2026: CR Scores recalculated for 569 hvac contractors serving Lafayette.
- October 2026: 6 duplicate listings merged.
More HVAC contractors and Lafayette pages
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Other trades in Lafayette
- Roofers in Lafayette725 ranked
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- Electricians in Lafayette494 ranked
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- Kitchen remodelers in Lafayette471 ranked
- Bathroom remodelers in Lafayette441 ranked
- Flooring contractors in Lafayette321 ranked
- Tile installers in Lafayette67 ranked
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- Concrete contractors in Lafayette271 ranked
- Fence contractors in Lafayette120 ranked
- Deck builders in Lafayette144 ranked
- Siding contractors in Lafayette101 ranked
- Window installers in Lafayette313 ranked
- Gutter installers in Lafayette179 ranked
- Insulation contractors in Lafayette108 ranked
- Solar installers in Lafayette293 ranked
- Garage door repair companies in Lafayette238 ranked
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- Tree services in Lafayette241 ranked
- Masonry contractors in Lafayette127 ranked
- Water damage restoration companies in Lafayette379 ranked
- Home builders in Lafayette469 ranked
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