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Emergency HVAC Contractors in Novato, CA (2026)

Top 50 of 215 HVAC contractors, in emergency orderUpdated 0 paid placements in this rankingHow we rank

25 of the 50 HVAC contractors on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.

If you smell gas, leave the building now and call your gas utility or 911 from outside.

The short answer

  1. 1

    #1 for emergency heating and cooling in Novato: Bellows Plumbing, Heating, Cooling & Electrical, open 24/7.

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

Top emergency HVAC contractors in Novato at a glance

Top emergency HVAC contractors in Novato at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Bellows Plumbing, Heating, Cooling & Electrical654.9★ (480)Novato24/7
2Ongaro & Sons644.9★ (762)San Anselmo, 9 mi away24/7
3Ongaro & Sons634.9★ (538)Petaluma, 11 mi away24/7
4Albert Nahman Plumbing, Heating, and Cooling624.7★ (3,311)Berkeley, 24 mi away24/7
5Next Day Air & Heating615.0★ (499)Cotati, 18 mi away24/7
6Ongaro & Sons614.9★ (1,222)Santa Rosa, 24 mi away24/7
7KC Home Services Plumbing, Heating & AC Repair614.9★ (827)Santa Rosa, 22 mi away24/7
8Local Plumbing605.0★ (211)Sausalito, 18 mi away24/7
9Milano Mechanical605.0★ (82)Petaluma, 12 mi away24/7
10Martin Electric and HVAC595.0★ (30)Petaluma, 10 mi away24/7

Call an emergency HVAC contractor in Novato now

24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.

The 50 emergency HVAC contractors in Novato, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 215 is on the HVAC contractors page.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  2. #2 Ongaro & Sons

    Based in San Anselmo, 9 mi away

    64/100CR Score

    Ranked #2 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
    View profile for Ongaro & Sons(415) 523-3755

  3. #3 Ongaro & Sons

    Based in Petaluma, 11 mi away

    63/100CR Score

    Ranked #3 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
    View profile for Ongaro & Sons(707) 633-9499

  6. #6 Ongaro & Sons

    Based in Santa Rosa, 24 mi away

    61/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.9★ from 1,222 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 1,222 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    250 D St Suite 700B, Santa Rosa, CA 95404
    View profile for Ongaro & Sons(707) 908-9208

  8. #8 Local Plumbing

    Based in Sausalito, 18 mi away

    60/100CR Score

    Ranked #8 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
    View profile for Local Plumbing(415) 636-9210

  9. #9 Milano Mechanical

    Based in Petaluma, 12 mi away

    60/100CR Score

    Ranked #9 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
    View profile for Milano Mechanical(707) 778-9339

  12. #12 Fuse Service

    Based in Richmond, 18 mi away

    58/100CR Score

    Ranked #12 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
    View profile for Fuse Service(415) 234-1807

  16. #16 Northbay Comfort Inc.

    Based in Rohnert Park, 19 mi away

    57/100CR Score

    Ranked #16 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 44 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5701 State Farm Dr #9, Rohnert Park, CA 94928
    View profile for Northbay Comfort Inc.(707) 723-6182

  19. #19 The Duct Doctor

    Based in Santa Rosa, 25 mi away

    57/100CR Score

    Ranked #19 because of its Google rating and trade focus: 5.0★ from 84 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 84 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    720 Blossom Way, Santa Rosa, CA 95401
    View profile for The Duct Doctor(707) 490-2722

  20. #20 1-888-Heat-Pumps

    Based in Berkeley, 24 mi away

    56/100CR Score

    Ranked #20 because of its Google rating and trade focus: 5.0★ from 45 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 45 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1826 Prince St, Berkeley, CA 94703
    View profile for 1-888-Heat-Pumps(888) 432-8786

Top 50 of 215 HVAC contractors by emergency score

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.

HVAC contractors in Novato, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Magic AC Repair Noe Valley554.9★ (24)24 mi
27Estes Refrigeration, Inc.554.0★ (10)17 mi
28Reliable Refrigeration, Inc.544.0★ (19)21 mi
29Palma Super Cold HVAC545.0★ (8)21 mi
30Dormatech Mechanical Systems, Inc.533.4★ (5)18 mi
31BV Mechanical Services LLC.525.0★ (5)24 mi
32STAT Heating & Air525.0★ (3)22 mi
33Flow Elite Plumbing & Hydronic Heating525.0★ (21)19 mi
34West Coast Refrigeration LLC525.0★ (4)24 mi
35SOS PLUMBING, HEATING & AIR524.0★ (3)24 mi
36Icon Plumbing & Design504.0★ (4)8 mi
37Galaxy Heating & Air Conditioning495.0★ (6)24 mi
38CFM HVAC495.0★ (39)13 mi
39Peter Levi Plumbing, Heating, Cooling, Drains484.8★ (1,640)In Novato
40Gene Burch Plumbing Heating & Air474.9★ (588)In Novato
41Kelly Plumbing & Heating464.9★ (308)In Novato
42Reid Heating & Energy Inc454.2★ (5)12 mi
43Red Mountain Heating and Air INC.454.9★ (134)In Novato
44Reyes Heating and Air Inc455.0★ (113)In Novato
45Amy's Appliances Repair443.9★ (11)17 mi
46North HVAC Services, Inc Heating & Air Conditioning445.0★ (240)8 mi
47Optemo Hydronics445.0★ (18)25 mi
48Denny's Heating & Air Conditioning435.0★ (8)20 mi
49Elevated Comfort434.9★ (949)18 mi
50Finest Heating & Air435.0★ (49)In Novato

How we ranked emergency HVAC contractors in Novato

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

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 from
Reputation15%Google star rating, adjusted for how many reviews back it
Credentials15%Active state license, bond and workers’ comp on file
Review volume10%Number of Google reviews, compared with the most-reviewed business on the list
Recency5%Share of reviews from the last 12 months
Availability15%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%How clearly the business does this trade (its Google category and name)
Proximity5%Based in the city scores highest, less the farther away it is
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodically
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there are

Emergency HVAC contractors in Novato: questions

Which HVAC contractors in Novato are open 24/7?

25 on this list post 24/7 hours, including Bellows Plumbing, Heating, Cooling & Electrical, Ongaro & Sons, Ongaro & Sons, Albert Nahman Plumbing, Heating, and Cooling and Next Day Air & Heating.

Who is ranked #1 for emergency heating and cooling in Novato, CA?

Bellows Plumbing, Heating, Cooling & Electrical is #1, with a CR Score of 65 out of 100 on emergency weights.

How are emergency HVAC contractors in Novato ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

What should I do before the HVAC contractor arrives?

If you smell gas, leave the building now and call your gas utility or 911 from outside.

How many emergency HVAC contractors here list a phone number?

25 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for Novato

  1. October 2026: CR Scores recalculated for 215 hvac contractors serving Novato.
  2. October 2026: 3 duplicate listings merged.

More emergency and heating and cooling pages