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Emergency HVAC Contractors in Napa, CA (2026)

Top 50 of 211 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 Napa: Service Champions, 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 Napa at a glance

Top emergency HVAC contractors in Napa at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Service Champions634.9★ (5,220)Martinez, 23 mi away24/7
2Hometown Heating and Air Conditioning614.9★ (2,463)Concord, 24 mi away24/7
3Ongaro & Sons604.9★ (538)Petaluma, 20 mi away24/7
4Bellows Plumbing, Heating, Cooling & Electrical604.9★ (480)Novato, 21 mi away24/7
5Freschi Service Experts604.8★ (1,046)Concord, 24 mi away24/7
6KC Home Services Plumbing, Heating & AC Repair604.9★ (827)Santa Rosa, 24 mi away24/7
7Next Day Air & Heating595.0★ (499)Cotati, 24 mi away24/7
8Reliable Refrigeration, Inc.594.0★ (19)Napa24/7
9Severson Heating & Cooling584.9★ (46)Sonoma, 12 mi away24/7
10Pearce Heating & Air Conditioning, Inc.584.9★ (339)Winters, 24 mi away24/7

Call an emergency HVAC contractor in Napa 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 Napa, 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 211 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.

  1. Ranked #1 in Napa

    #1 Service Champions

    Based in Martinez, 23 mi away

    63/100CR Score

    Ranked #1 because of its Google rating and review volume: 4.9★ from 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

  3. #3 Ongaro & Sons

    Based in Petaluma, 20 mi away

    60/100CR 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

  11. #11 Rendon Heating & Air

    Based in Vacaville, 17 mi away

    58/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.6★ from 156 Google reviews, listed on Google as “Air conditioning contractor”.

    • 4.6★ from 156 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    527 Stevenson St, Vacaville, CA 95688
    View profile for Rendon Heating & Air(707) 999-8069

  14. #14 Air Essentials Inc

    Based in Vacaville, 19 mi away

    58/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.9★ from 84 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 84 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    610 Eubanks Ct, Vacaville, CA 95688
    View profile for Air Essentials Inc(707) 446-4080

  15. #15 Milano Mechanical

    Based in Petaluma, 21 mi away

    57/100CR Score

    Ranked #15 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

  16. #16 AirFlow HVAC Experts

    Based in Fairfield, 14 mi away

    57/100CR Score

    Ranked #16 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 29 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    613 E Travis Blvd, Fairfield, CA 94533
    View profile for AirFlow HVAC Experts(707) 216-2415

  19. #19 Cali HVAC

    Based in Concord, 24 mi away

    57/100CR Score

    Ranked #19 because of its Google rating and trade focus: 5.0★ from 97 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 97 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1717 Solano Way STE 2, Concord, CA 94520
    View profile for Cali HVAC(925) 775-5557

  24. #24 Northbay Comfort Inc.

    Based in Rohnert Park, 23 mi away

    56/100CR Score

    Ranked #24 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

Top 50 of 211 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 Napa, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Blue Mountain Construction Services553.9★ (120)19 mi
27Green Air Heating and Air Conditioning, Inc.554.6★ (69)24 mi
28Pure Air Cooling & Hvac Corporation555.0★ (8)15 mi
29A-1 COMFORT HEATING AND AIR555.0★ (4)12 mi
30Golden Comfort AC Repair & Heating555.0★ (27)24 mi
31Climate Services Heating and Air Conditioning555.0★ (19)23 mi
32Dormatech Mechanical Systems, Inc.543.4★ (5)14 mi
33Vacaville HVAC Services545.0★ (7)18 mi
34O.s heating & Air Conditioning545.0★ (17)25 mi
35CM Mechanical Heating & Air Conditioning​545.0★ (3)16 mi
36SOS PLUMBING, HEATING & AIR534.0★ (3)18 mi
37EHC HEATING&COOLING524.0★ (4)22 mi
38Smart Air Experts522.9★ (7)24 mi
39Bell Brothers Plumbing Heating & Air - Concord524.0★ (4)24 mi
40Denny's Heating & Air Conditioning505.0★ (8)In Napa
41Quality Conservation Services484.7★ (347)24 mi
42Golden State Comfort Systems475.0★ (19)12 mi
43Fuse HVAC & Appliance Repair Napa474.8★ (912)In Napa
44Larson Air Solutions465.0★ (12)13 mi
45CFM HVAC465.0★ (39)21 mi
46Icon Plumbing & Design454.0★ (4)25 mi
47Amy's Appliances Repair453.9★ (11)13 mi
48Heating And Air Conditioning454.1★ (8)13 mi
49Vineyard HVAC Services445.0★ (4)15 mi
50Advanced Plumbing Heating and Air444.9★ (1,413)17 mi

How we ranked emergency HVAC contractors in Napa

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 Napa: questions

Which HVAC contractors in Napa are open 24/7?

25 on this list post 24/7 hours, including Service Champions, Hometown Heating and Air Conditioning, Ongaro & Sons, Bellows Plumbing, Heating, Cooling & Electrical and Freschi Service Experts.

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

Service Champions is #1, with a CR Score of 63 out of 100 on emergency weights.

How are emergency HVAC contractors in Napa 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 Napa

  1. October 2026: CR Scores recalculated for 211 hvac contractors serving Napa.
  2. October 2026: 3 duplicate listings merged.

More emergency and heating and cooling pages