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Emergency HVAC Contractors in Berkeley, CA (2026)

Top 50 of 533 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 Berkeley: Albert Nahman Plumbing, Heating, and Cooling, 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 Berkeley at a glance

Top emergency HVAC contractors in Berkeley at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Albert Nahman Plumbing, Heating, and Cooling954.7★ (3,311)Berkeley24/7
2Service Champions934.9★ (5,220)Martinez, 14 mi away24/7
3Hometown Heating and Air Conditioning914.9★ (2,463)Concord, 16 mi away24/7
4Heise's Plumbing914.9★ (1,454)San Francisco, 14 mi away24/7
5Cabrillo Plumbing, Heating & Air914.9★ (966)San Francisco, 12 mi away24/7
6Chill Heating and Cooling905.0★ (1,017)San Ramon, 17 mi away24/7
7Perfect Star Heating, Cooling, & Electrical904.9★ (1,255)Concord, 16 mi away24/7
8Chill Heating and Cooling905.0★ (481)Walnut Creek, 13 mi away24/7
91-888-Heat-Pumps895.0★ (45)Berkeley24/7
10Arch Plumbing Inc.894.9★ (286)San Francisco, 11 mi away24/7

Call an emergency HVAC contractor in Berkeley 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 Berkeley, 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 533 is on the HVAC contractors page.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  2. #2 Service Champions

    Based in Martinez, 14 mi away

    93/100CR Score

    Ranked #2 because of its Google rating and review volume: 4.9★ from 5,220 Google reviews, 5,220 Google reviews.

    • 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

  4. #4 Heise's Plumbing

    Based in San Francisco, 14 mi away

    91/100CR Score

    Ranked #4 because of its Google rating and availability: 4.9★ from 1,454 Google reviews, open 24/7.

    • 4.9★ from 1,454 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    260 Ocean Ave, San Francisco, CA 94112
    View profile for Heise's Plumbing(415) 333-0704

  10. #10 Arch Plumbing Inc.

    Based in San Francisco, 11 mi away

    89/100CR Score

    Ranked #10 because of its Google rating and availability: 4.9★ from 286 Google reviews, open 24/7.

    • 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
    View profile for Arch Plumbing Inc.(415) 325-2547

  12. #12 Ongaro & Sons

    Based in San Anselmo, 17 mi away

    89/100CR Score

    Ranked #12 because of its Google rating and availability: 4.9★ from 762 Google reviews, open 24/7.

    • 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

  14. #14 Local Plumbing

    Based in Sausalito, 12 mi away

    89/100CR Score

    Ranked #14 because of its Google rating and availability: 5.0★ from 211 Google reviews, open 24/7.

    • 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

  15. #15 Fuse Service

    Based in Richmond, 5 mi away

    89/100CR Score

    Ranked #15 because of its Google rating and availability: 4.9★ from 94 Google reviews, open 24/7.

    • 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 Service Champions

    Based in Pleasanton, 23 mi away

    89/100CR Score

    Ranked #16 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

  24. #24 California HVAC

    Based in Oakland, 7 mi away

    87/100CR Score

    Ranked #24 because of its Google rating and availability: 4.9★ from 59 Google reviews, open 24/7.

    • 4.9★ from 59 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1445 34th Ave Unit 7213, Oakland, CA 94601
    View profile for California HVAC(510) 616-9857

  25. #25 Afterglow

    Based in Albany, 6 mi away

    87/100CR Score

    Ranked #25 because of its Google rating and availability: 4.9★ from 47 Google reviews, open 24/7.

    • 4.9★ from 47 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Afterglow(510) 495-0550

Top 50 of 533 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 Berkeley, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26San Francisco Expert Heating and Air874.9★ (69)9 mi
27Service Hero Plumbing & Air874.5★ (1,252)18 mi
28Alameda Island Heating & Air Conditioning LLC875.0★ (32)6 mi
29Alaska Refrigeration Air Conditioning & Heating Co874.9★ (130)14 mi
30Rooter Hero Plumbing & Air of San Lorenzo874.7★ (265)15 mi
31Albert Nahman Plumbing, Heating, and Cooling874.6★ (474)17 mi
32Cali HVAC875.0★ (97)15 mi
33Bay Area Climate Control874.9★ (162)17 mi
34Comfy Heating & Air Conditioning Inc.874.8★ (111)13 mi
35Five Or Free Electrical Heating & Air Solutions864.8★ (219)3 mi
36Villquin Air Services864.9★ (172)19 mi
37Fuse Service864.9★ (54)12 mi
38Cyclone Air Systems Inc864.9★ (109)17 mi
39Eco Systems Heating & Air Conditioning864.8★ (138)17 mi
40O.s heating & Air Conditioning865.0★ (17)6 mi
41Same Day Air Conditioning & Heating864.5★ (700)20 mi
42Fuse Service864.9★ (264)23 mi
43AC & Heating Solutions854.9★ (73)16 mi
44Smart Heating and Air Conditioning855.0★ (151)23 mi
45Palma Super Cold HVAC855.0★ (8)3 mi
46Haddon Heating and Cooling854.3★ (410)16 mi
47Inner Sunset Top Heating and Air855.0★ (30)14 mi
48EHC HEATING AND COOLING854.7★ (55)14 mi
49One Hour Heating & Air Conditioning855.0★ (26)13 mi
50BV Mechanical Services LLC.845.0★ (5)3 mi

How we ranked emergency HVAC contractors in Berkeley

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. 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
Reputation25%Bayesian-adjusted Google star rating
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2
Review volume10%log10(reviews + 1) against the list maximum
Recency10%Share of reviews from the last 12 months
Availability20%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radius
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)

Emergency HVAC contractors in Berkeley: questions

Which HVAC contractors in Berkeley are open 24/7?

25 on this list post 24/7 hours, including Albert Nahman Plumbing, Heating, and Cooling, Service Champions, Hometown Heating and Air Conditioning, Heise's Plumbing and Cabrillo Plumbing, Heating & Air.

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

Albert Nahman Plumbing, Heating, and Cooling is #1, with a CR Score of 95 out of 100 on emergency weights.

How are emergency HVAC contractors in Berkeley ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. 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 Berkeley

  1. October 2026: CR Scores recalculated for 533 hvac contractors serving Berkeley.
  2. October 2026: 4 duplicate listings merged.

More emergency and heating and cooling pages