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Emergency HVAC Contractors in San Jose, CA (2026)

Top 50 of 446 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 San Jose: 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 San Jose at a glance

Top emergency HVAC contractors in San Jose at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Service Champions684.9★ (3,407)San Jose24/7
2IRBIS Air Plumbing Electrical674.9★ (1,466)San Jose24/7
3TRIO Heating, Air & Plumbing664.9★ (1,142)San Jose24/7
4Atlas Trillo654.6★ (1,308)San Jose24/7
5Fuse HVAC, Refrigeration, Electrical & Plumbing654.9★ (1,034)Santa Clara, 4 mi away24/7
6Air Care Heating & Cooling Inc.654.9★ (426)San Jose24/7
7Fuse654.9★ (400)San Jose24/7
8ARS/ Rescue Rooter654.7★ (546)San Jose24/7
9HVAC Gurus644.7★ (439)San Jose24/7
10Precision Heating & Cooling645.0★ (236)San Jose24/7

Call an emergency HVAC contractor in San Jose 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 San Jose, 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 446 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 San Jose

    #1 Service Champions

    Based in San Jose

    68/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.9★ from 3,407 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 3,407 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2161 Del Franco St, San Jose, CA 95131
    View profile for Service Champions(408) 549-7376

  4. #4 Atlas Trillo

    Based in San Jose

    65/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.6★ from 1,308 Google reviews, listed on Google as “HVAC contractor”.

    • 4.6★ from 1,308 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2305 Paragon Dr, San Jose, CA 95131
    View profile for Atlas Trillo(408) 675-1924

  7. #7 Fuse

    Based in San Jose

    65/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.9★ from 400 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 400 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2512 Seaboard Ave, San Jose, CA 95131
    View profile for Fuse(669) 240-1243

  8. #8 ARS/ Rescue Rooter

    Based in San Jose

    65/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.7★ from 546 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 546 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2305 Paragon Dr, San Jose, CA 95131
    View profile for ARS/ Rescue Rooter(408) 620-3458

  9. #9 HVAC Gurus

    Based in San Jose

    64/100CR Score

    Ranked #9 because of its Google rating and trade focus: 4.7★ from 439 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 439 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    75 Phelan Ave Unit 6, San Jose, CA 95112
    View profile for HVAC Gurus(408) 499-0494

  12. #12 Freon Service

    Based in San Jose

    64/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.9★ from 219 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 219 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6291 Kelez Ct, San Jose, CA 95120
    View profile for Freon Service(408) 877-5557

  14. #14 Fuse Service

    Based in Santa Clara, 2 mi away

    64/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.9★ from 273 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 273 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1221 Sherwood Ave, Santa Clara, CA 95050
    View profile for Fuse Service(408) 412-0203

  15. #15 Fuse Service

    Based in San Mateo, 1 mi away

    63/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.9★ from 217 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 217 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3 37th Ave W, San Mateo, CA 94403
    View profile for Fuse Service(669) 240-1215

  22. #22 Best HVAC

    Based in Lodi, 2 mi away

    63/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.8★ from 153 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 153 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Best HVAC

Top 50 of 446 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 San Jose, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Service Champions624.9★ (4,721)25 mi
27HVACerz625.0★ (66)In San Jose
28Aire Serv of Campbell and Saratoga624.9★ (127)4 mi
29Jazz Heating, Air Conditioning and Plumbing624.9★ (3,438)24 mi
30San Jose Heating & Cooling624.8★ (72)In San Jose
31Skyrocket HVAC & Appliance Repair625.0★ (124)5 mi
32Silicon Valley Comfort624.9★ (134)5 mi
33Bellows Plumbing, Heating, Cooling & Electrical624.7★ (159)5 mi
34All Fresh Temp614.5★ (82)In San Jose
35Mr. Reliable Plumbing & Heating614.7★ (55)In San Jose
36Air Heating Masters San Jose615.0★ (35)In San Jose
37Fuse HVAC, Refrigeration, Electrical & Plumbing614.9★ (216)10 mi
38Rooter Hero Plumbing & Air of San Jose614.8★ (3,216)In San Jose
39Tempro615.0★ (48)2 mi
40Fuse service615.0★ (444)17 mi
41CaliforniAir Heating and Air Conditioning615.0★ (31)In San Jose
42Heating and Air614.5★ (62)In San Jose
43San Jose Courteous And Perfect615.0★ (30)In San Jose
44Service Champions614.8★ (2,337)25 mi
45Freon Heating and Cooling615.0★ (24)In San Jose
46Alliance Air Service614.9★ (37)3 mi
47JH Heating and Cooling inc614.8★ (28)In San Jose
48Freon HVAC Service605.0★ (21)In San Jose
49Prime HVAC San Jose Company605.0★ (20)In San Jose
50Ice Heating And Cooling605.0★ (19)In San Jose

How we ranked emergency HVAC contractors in San Jose

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 San Jose: questions

Which HVAC contractors in San Jose are open 24/7?

25 on this list post 24/7 hours, including Service Champions, IRBIS Air Plumbing Electrical, TRIO Heating, Air & Plumbing, Atlas Trillo and Fuse HVAC, Refrigeration, Electrical & Plumbing.

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

Service Champions is #1, with a CR Score of 68 out of 100 on emergency weights.

How are emergency HVAC contractors in San Jose 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?

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

Update log for San Jose

  1. October 2026: CR Scores recalculated for 446 hvac contractors serving San Jose.
  2. October 2026: 3 duplicate listings merged.

More emergency and heating and cooling pages