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Emergency HVAC Contractors in Corona, CA (2026)

Top 50 of 1,204 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 Corona: All Pro Cooling, Heating, Plumbing & 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 Corona at a glance

Top emergency HVAC contractors in Corona at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1All Pro Cooling, Heating, Plumbing & Electrical674.7★ (4,107)Corona24/7
2RighTime Home Services674.7★ (3,741)Corona24/7
3Airplus of California Inc.664.9★ (1,325)Corona24/7
4Friends & Family HVAC664.9★ (1,213)Corona24/7
5All Pro Cooling, Heating, Plumbing & Electrical654.8★ (7,425)Ontario, 14 mi away24/7
6Aced It Heating & AC Repair645.0★ (306)Corona24/7
7HMS Plumbing & Construction645.0★ (304)Corona24/7
8RT Olson Plumbing, Heating and Air Conditioning644.8★ (504)Corona24/7
9Icee Hot Air Conditioning & Heating645.0★ (236)Corona24/7
10Henley's Plumbing & Air644.8★ (316)Corona24/7

Call an emergency HVAC contractor in Corona 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 Corona, 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 1,204 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.

  11. #11 Fire-N-Ice

    Based in Corona

    63/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.9★ from 222 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 222 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Fire-N-Ice(951) 258-7557

  13. #13 New Age Air, Inc.

    Based in Corona

    63/100CR Score

    Ranked #13 because of its Google rating and trade focus: 5.0★ from 151 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 151 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    310 S Maple St Unit F, Corona, CA 92878
    View profile for New Age Air, Inc.(562) 516-1695

  15. #15 Home Comfort USA

    Based in Anaheim, 16 mi away

    63/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.8★ from 2,813 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 2,813 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1120 N Tustin Ave, Anaheim, CA 92807
    View profile for Home Comfort USA(714) 467-2932

  18. #18 Metz Air Control

    Based in Chino, 12 mi away

    63/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.9★ from 969 Google reviews, listed on Google as “Air conditioning repair service”.

    • 4.9★ from 969 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    13784 Monte Vista Ave, Chino, CA 91710
    View profile for Metz Air Control(909) 925-0513

  21. #21 Air Care

    Based in Rancho Santa Margarita, 17 mi away

    62/100CR Score

    Ranked #21 because of its Google rating and trade focus: 5.0★ from 1,350 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 1,350 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    30211 Avenida de las Banderas #200, Rancho Santa Margarita, CA 92688
    View profile for Air Care(949) 446-1606

  23. #23 NexGen HVAC & Plumbing

    Based in Laguna Hills, 20 mi away

    62/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.8★ from 3,589 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 3,589 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    23221 Peralta Dr Ste C, Laguna Hills, CA 92653
    View profile for NexGen HVAC & Plumbing(949) 763-5979

  24. #24 Plus Air Duct Testing

    Based in Jurupa Valley, 10 mi away

    62/100CR Score

    Ranked #24 because of its Google rating and trade focus: 5.0★ from 401 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 401 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    9346 Galena St Ste. C, Jurupa Valley, CA 92509
    View profile for Plus Air Duct Testing(877) 200-7587

Top 50 of 1,204 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 Corona, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Air Concepts Air Conditioning and Heating624.9★ (995)15 mi
27Orange Coast Plumbing624.9★ (764)13 mi
28Authority Plumbing, Heating and Air625.0★ (173)7 mi
29Service Hero Plumbing, HVAC, and Electrical624.8★ (1,840)18 mi
30Steve's Five Star Service624.9★ (1,292)17 mi
31Dial One Sonshine Heating, Air & Plumbing624.9★ (2,852)22 mi
32NexGen HVAC & Plumbing624.8★ (708)13 mi
33RKM Heating and Air Conditioning624.9★ (1,073)16 mi
34Klaus & Sons Plumbing, Heating & Air Conditioning614.9★ (977)16 mi
35RTC Heating and Air Conditioning615.0★ (48)In Corona
36Veteran Air614.9★ (1,091)17 mi
37Inland Empire Comfort615.0★ (430)14 mi
38Triton Air & Plumbing614.8★ (1,069)16 mi
39SoCal Airflow Pros614.9★ (1,005)17 mi
40Sheldon's Heating, Air Conditioning & Plumbing, Inc.614.8★ (729)15 mi
41Metz Air Control614.9★ (85)5 mi
42White Mechanical, Inc.614.9★ (478)15 mi
43Salute Air Conditioning and Heating615.0★ (108)7 mi
44John Stevenson Plumbing, Heating & Air Conditioning614.9★ (680)17 mi
45Air One Air Conditioning, Heating, & Plumbing614.9★ (786)18 mi
46Rooter Hero Plumbing & Air614.8★ (802)17 mi
47Eco Air Heating & Cooling615.0★ (305)15 mi
48NexGen HVAC & Plumbing614.6★ (507)12 mi
49Just Right Services604.9★ (846)20 mi
50RC Air Heating & Air Conditioning Service604.9★ (705)19 mi

How we ranked emergency HVAC contractors in Corona

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 Corona: questions

Which HVAC contractors in Corona are open 24/7?

25 on this list post 24/7 hours, including All Pro Cooling, Heating, Plumbing & Electrical, RighTime Home Services, Airplus of California Inc., Friends & Family HVAC and All Pro Cooling, Heating, Plumbing & Electrical.

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

All Pro Cooling, Heating, Plumbing & Electrical is #1, with a CR Score of 67 out of 100 on emergency weights.

How are emergency HVAC contractors in Corona 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 Corona

  1. October 2026: CR Scores recalculated for 1,204 hvac contractors serving Corona.
  2. October 2026: 13 duplicate listings merged.

More emergency and heating and cooling pages