65/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 762 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 762 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11 Ross Ave, San Anselmo, CA 94960
Best HVAC Contractors in Lucas Valley-Marinwood, CA (2026)
246 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Lucas Valley-Marinwood: Ongaro & Sons, CR Score 65/100; 4.9★ from 762 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Bellows Plumbing, Heating, Cooling & Electrical, posts 24/7 hours; ranked #2 of 246.
- 4
Most-reviewed: Albert Nahman Plumbing, Heating, and Cooling, 3,311 Google reviews at 4.7★, the most of 246 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
246 Lucas Valley-Marinwood HVAC contractors are ranked here by CR Score, from ten published factors. 46 are open 24/7, 144 open Saturdays and 120 open Sundays, based on posted hours. The median Google rating is 5.0★ across 246 rated businesses.
Top 10 HVAC contractors in Lucas Valley-Marinwood at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Ongaro & Sons | 65 | 4.9★ (762) | San Anselmo, 5 mi away | 24/7 | Overall |
| 2 | Bellows Plumbing, Heating, Cooling & Electrical | 64 | 4.9★ (480) | Novato, 3 mi away | 24/7 | Emergencies |
| 3 | Peter Levi Plumbing, Heating, Cooling, Drains | 63 | 4.8★ (1,640) | Novato, 3 mi away | Sat · Evenings | — |
| 4 | Albert Nahman Plumbing, Heating, and Cooling | 62 | 4.7★ (3,311) | Berkeley, 21 mi away | 24/7 | Most reviews |
| 5 | Ongaro & Sons | 61 | 4.9★ (538) | Petaluma, 16 mi away | 24/7 | — |
| 6 | Heise's Plumbing | 61 | 4.9★ (1,454) | San Francisco, 23 mi away | 24/7 | — |
| 7 | Local Plumbing | 61 | 5.0★ (211) | Sausalito, 14 mi away | 24/7 | — |
| 8 | Cabrillo Plumbing, Heating & Air | 61 | 4.9★ (966) | San Francisco, 23 mi away | 24/7 | — |
| 9 | Next Day Air & Heating | 60 | 5.0★ (499) | Cotati, 22 mi away | 24/7 | — |
| 10 | Magic Plumbing Heating & Cooling | 60 | 4.9★ (1,876) | San Francisco, 24 mi away | Sat · Sun · Evenings | — |
The 246 best HVAC contractors in Lucas Valley-Marinwood, 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 Novato, 3 mi away
64/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 480 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.9★ from 480 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 86 Hamilton Dr Suite A, Novato, CA 94949
Based in Novato, 3 mi away
63/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.8★ from 1,640 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.8★ from 1,640 Google reviews
- Hours
- Mon–Fri 7 AM–7:30 PM · Sat 7:30 AM–4 PM · Sun closed
- Address
- 24 Digital Dr STE 1, Novato, CA 94949
Based in Berkeley, 21 mi away
62/100CR ScoreRanked #4 because of its Google rating and review volume: 4.7★ from 3,311 Google reviews, the most in Lucas Valley-Marinwood.
- 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 Petaluma, 16 mi away
61/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 538 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 538 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 719 Southpoint Blvd, Petaluma, CA 94954
Based in San Francisco, 23 mi away
61/100CR ScoreRanked #6 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 Sausalito, 14 mi away
61/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 211 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 211 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 323 Pine St Ste. F, Sausalito, CA 94965
Based in San Francisco, 23 mi away
61/100CR ScoreRanked #8 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
Based in Cotati, 22 mi away
60/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 499 Google reviews, listed on Google as “Heating contractor”.
- 5.0★ from 499 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 651 Portal St #6, Cotati, CA 94931
Based in San Francisco, 24 mi away
60/100CR ScoreRanked #10 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 Novato, 3 mi away
60/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 588 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 588 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
- Address
- 14 Commercial Blvd #133, Novato, CA 94949
#12 Elevated Comfort
Based in San Rafael, 7 mi away
60/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 90 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 90 Google reviews
- Hours
- Mon–Sat 7 AM–8 PM · Sun 8 AM–8 PM
- Address
- 1105 Francisco Blvd E #4, San Rafael, CA 94901
#13 Elevated Comfort
Based in Cotati, 22 mi away
59/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 949 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 949 Google reviews
- Hours
- Mon–Sat 7 AM–8 PM · Sun 8 AM–8 PM
- Address
- 374 Blodgett St Suite 4, Cotati, CA 94931
Based in San Francisco, 23 mi away
59/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 286 Google reviews, listed on Google as “HVAC contractor”.
- 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
#15 Fuse Service
Based in Richmond, 16 mi away
59/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 94 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 94 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 173 Lakeshore Ct, Richmond, CA 94804
Based in Petaluma, 17 mi away
59/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 82 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 82 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1317 Scott St, Petaluma, CA 94954
Based in Albany, 15 mi away
59/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 62 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 62 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Benicia, 24 mi away
58/100CR ScoreRanked #18 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 Novato, 5 mi away
58/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 308 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 308 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 861 Sweetser Ave, Novato, CA 94945
Based in Napa, 24 mi away
58/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.8★ from 912 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 912 Google reviews
- Hours
- Mon–Fri 7 AM–6 PM · Sat–Sun 7 AM–5 PM
- Address
- 794 Braydon Pl, Napa, CA 94559
Based in El Cerrito, 16 mi away
58/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 418 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 418 Google reviews
- Hours
- Mon–Thu 7:30 AM–9 PM · Fri 7:30 AM–7 PM · Sat 8 AM–4:30 PM · Sun closed
- Address
- 1537 S 56th St, El Cerrito, CA 94530
Based in Novato, 5 mi away
58/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 49 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 49 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat closed · Sun 8 AM–6 PM
- Address
- 7250 Redwood Blvd Suite 300, Novato, CA 94945
Based in Petaluma, 14 mi away
57/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 30 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- Water St, Petaluma, CA 94952
Based in Fairfax, 4 mi away
57/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 17 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 18 Napa Ave, Fairfax, CA 94930
Based in San Francisco, 19 mi away
57/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 69 Google reviews, listed on Google as “HVAC contractor”.
- 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 246 ranked HVAC contractors here; the rest are on their profiles.
Also serving Lucas Valley-Marinwood
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) | 24 mi |
| American Chiller Service, Inc. | 3.0★ (2) | 16 mi |
| ARASTEK Heating and Cooling , HVAC , Air Conditioning | 5.0★ (2) | 14 mi |
| BEST CHOICE HVAC, INC | 5.0★ (4) | 24 mi |
| Brothers Energy | 5.0★ (2) | 14 mi |
| CFM HVAC | 5.0★ (39) | 17 mi |
| Creative Comfort Systems | 5.0★ (2) | 20 mi |
| Five Or Free Electrical Heating & Air Solutions | 4.8★ (219) | 23 mi |
| Icon Plumbing & Design | 4.0★ (4) | 4 mi |
| Ledesma Heating Air | 5.0★ (2) | 14 mi |
| Magic AC Repair Noe Valley | 4.9★ (24) | 19 mi |
| North Cal Heating And Air | 5.0★ (2) | 14 mi |
| North Star Heating & Cooling | 5.0★ (2) | 14 mi |
| O'Keeffe Mechanical Co Inc | 3.0★ (3) | 23 mi |
| Reid Heating & Energy Inc | 4.2★ (5) | 8 mi |
| Richardson Heating & Air Conditioning | 3.0★ (2) | 19 mi |
| Rising Design & Construction | 3.0★ (2) | 8 mi |
| Sears Heating and Air Conditioning | 3.0★ (2) | 15 mi |
| Severson Heating & Cooling | 4.9★ (46) | 18 mi |
| SOS PLUMBING, HEATING & AIR | 4.0★ (3) | 24 mi |
How much do HVAC contractors cost in Lucas Valley-Marinwood?
National price ranges in USD, not adjusted for Lucas Valley-Marinwood. 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 Lucas Valley-Marinwood HVAC contractors
We scored 246 Lucas Valley-Marinwood 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 Lucas Valley-Marinwood 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 Lucas Valley-Marinwood: frequently asked questions
Who is the best HVAC contractor in Lucas Valley-Marinwood?
By CR Score, the highest-ranked HVAC contractor in Lucas Valley-Marinwood, CA is Ongaro & Sons with a CR Score of 65/100. It has 4.9★ from 762 Google reviews. It is open 24/7. Bellows Plumbing, Heating, Cooling & Electrical (#2) and Peter Levi Plumbing, Heating, Cooling, Drains (#3) follow. We ranked 246 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in Lucas Valley-Marinwood?
ContractorsRanked ranks 246 HVAC contractors serving Lucas Valley-Marinwood, CA. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in Lucas Valley-Marinwood are open 24/7?
46 ranked HVAC contractors in Lucas Valley-Marinwood post 24/7 hours. The highest-ranked are Ongaro & Sons (#1), Bellows Plumbing, Heating, Cooling & Electrical (#2) and Albert Nahman Plumbing, Heating, and Cooling (#4). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Lucas Valley-Marinwood work on weekends?
144 of 246 ranked HVAC contractors post Saturday hours and 120 post Sunday hours. The highest-ranked open Saturdays are Ongaro & Sons (#1), Bellows Plumbing, Heating, Cooling & Electrical (#2) and Peter Levi Plumbing, Heating, Cooling, Drains (#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 Lucas Valley-Marinwood?
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 Lucas Valley-Marinwood. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Lucas Valley-Marinwood HVAC contractors have?
The median Google rating among 246 rated HVAC contractors in Lucas Valley-Marinwood is 5.0★, with a median of 15 reviews. Albert Nahman Plumbing, Heating, and Cooling has the most, 3,311 reviews, and ranks #4. 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 Lucas Valley-Marinwood?
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 Lucas Valley-Marinwood
- October 2026: CR Scores recalculated for 246 hvac contractors serving Lucas Valley-Marinwood.
- October 2026: 2 duplicate listings merged.
More HVAC contractors and Lucas Valley-Marinwood pages
HVAC contractors near Lucas Valley-Marinwood
- HVAC contractors in Fairfax, CA239 ranked
- HVAC contractors in San Anselmo, CA264 ranked
- HVAC contractors in Novato, CA215 ranked
- HVAC contractors in San Rafael, CA276 ranked
- HVAC contractors in Kentfield, CA269 ranked
- HVAC contractors in Larkspur, CA283 ranked
- HVAC contractors in Corte Madera, CA292 ranked
- HVAC contractors in Mill Valley, CA265 ranked
- HVAC contractors in Strawberry, CA307 ranked
- HVAC contractors in Tamalpais Valley, CA268 ranked
Other trades in Lucas Valley-Marinwood
- Roofers in Lucas Valley-Marinwood542 ranked
- Plumbers in Lucas Valley-Marinwood386 ranked
- Electricians in Lucas Valley-Marinwood285 ranked
- General contractors in Lucas Valley-Marinwood591 ranked
- Painters in Lucas Valley-Marinwood93 ranked
- Landscapers in Lucas Valley-Marinwood68 ranked
- Handymen in Lucas Valley-Marinwood37 ranked
- Kitchen remodelers in Lucas Valley-Marinwood243 ranked
- Bathroom remodelers in Lucas Valley-Marinwood235 ranked
- Flooring contractors in Lucas Valley-Marinwood138 ranked
- Tile installers in Lucas Valley-Marinwood23 ranked
- Drywall contractors in Lucas Valley-Marinwood9 ranked
- Concrete contractors in Lucas Valley-Marinwood151 ranked
- Fence contractors in Lucas Valley-Marinwood67 ranked
- Deck builders in Lucas Valley-Marinwood76 ranked
- Siding contractors in Lucas Valley-Marinwood87 ranked
- Window installers in Lucas Valley-Marinwood231 ranked
- Gutter installers in Lucas Valley-Marinwood85 ranked
- Insulation contractors in Lucas Valley-Marinwood50 ranked
- Solar installers in Lucas Valley-Marinwood211 ranked
- Garage door repair companies in Lucas Valley-Marinwood93 ranked
- Foundation repair companies in Lucas Valley-Marinwood104 ranked
- Tree services in Lucas Valley-Marinwood130 ranked
- Masonry contractors in Lucas Valley-Marinwood79 ranked
- Water damage restoration companies in Lucas Valley-Marinwood282 ranked
- Home builders in Lucas Valley-Marinwood330 ranked
- Demolition contractors in Lucas Valley-Marinwood72 ranked
- All contractors in Lucas Valley-Marinwood