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Emergency HVAC Contractors in Casa Grande, AZ (2026)

Top 50 of 103 HVAC contractors, in emergency orderUpdated 0 paid placements in this rankingHow we rank

24 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 Casa Grande: Desert Sun Heating, Cooling & Refrigeration Inc., 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 Casa Grande at a glance

Top emergency HVAC contractors in Casa Grande at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Desert Sun Heating, Cooling & Refrigeration Inc.664.7★ (437)Casa Grande24/7
2Prestige Air Heating & Cooling655.0★ (166)Casa Grande24/7
3Sunset Home Services655.0★ (139)Casa Grande24/7
4R&I A/Cs LLC644.9★ (124)Casa Grande24/7
5Airsurance635.0★ (64)Casa Grande24/7
6Will & Daughters New AC Unit AC Repair635.0★ (64)Casa Grande24/7
7Frank Lee the Best Heating and Cooling LLC625.0★ (42)Casa Grande24/7
8Armando's Air Conditioning and Heating624.7★ (35)Casa Grande24/7
9ROMAN HEATING&COOLING LLC625.0★ (27)Casa Grande24/7
10Kooline Plumbing Heating & Air LLC614.8★ (493)Maricopa, 19 mi away24/7

Call an emergency HVAC contractor in Casa Grande 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 Casa Grande, 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 103 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.

  4. #4 R&I A/Cs LLC

    Based in Casa Grande

    64/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.9★ from 124 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 124 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for R&I A/Cs LLC(520) 350-5330

  5. #5 Airsurance

    Based in Casa Grande

    63/100CR Score

    Ranked #5 because of its Google rating and trade focus: 5.0★ from 64 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 64 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Airsurance(480) 450-2575

  15. #15 Eagle Air AC Repair

    Based in Queen Creek, 24 mi away

    59/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.9★ from 237 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 237 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    19213 E Indiana Ave, Queen Creek, AZ 85142
    View profile for Eagle Air AC Repair(480) 748-1781

  19. #19 Circulate HVAC

    Based in Avondale, 16 mi away

    58/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.9★ from 42 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 42 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Circulate HVAC(602) 824-8839

  24. #24 Owen & Sons HVAC

    Based in Florence, 20 mi away

    56/100CR Score

    Ranked #24 because of its Google rating and trade focus: 4.9★ from 22 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 22 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3235 Merrill Ranch Pkwy, Florence, AZ 85132
    View profile for Owen & Sons HVAC(520) 590-5300

Top 50 of 103 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 Casa Grande, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26RJH Mechanical564.9★ (35)24 mi
27Clark Brothers Plumbing & HVAC LLC554.8★ (56)15 mi
28We Fix It Home Services, LLC554.6★ (19)23 mi
29Polar Experts HVAC555.0★ (20)25 mi
30Mil-Spec LLC524.7★ (23)13 mi
31Universal Plumbing And Air Of Queen Creek495.0★ (24)25 mi
32Al & Riley's Air Conditioning and Sheet Metal494.9★ (862)In Casa Grande
33Mark Of Excellence Heating & Air Conditioning485.0★ (382)In Casa Grande
34JLM Air Conditioning and Heating475.0★ (350)In Casa Grande
35Curt's Mechanical475.0★ (342)In Casa Grande
36American City Air Conditioning & Refrigeration LLC475.0★ (19)16 mi
37Moss Air Conditioning & Heating475.0★ (277)In Casa Grande
38Mid-State Refrigeration Inc.474.9★ (286)In Casa Grande
39A.C. Infantry LLC465.0★ (161)In Casa Grande
40911 Air Repair444.9★ (1,487)21 mi
41Felix Appliance Heating & AC Repair444.9★ (1,180)19 mi
42Hoffman Heating & Cooling LLC444.9★ (548)15 mi
43AirAid Heating & Cooling LLC444.9★ (56)In Casa Grande
44OZ Heating & Cooling LLC444.9★ (49)In Casa Grande
45Vintage Mechanical LLC444.4★ (93)In Casa Grande
46San Tan A/C Comfort Pros445.0★ (632)20 mi
47Artisan Air and Home Services434.9★ (41)In Casa Grande
48Vintage Mechanical435.0★ (35)In Casa Grande
49Air Assurance434.6★ (51)In Casa Grande
50Esco Heating and Cooling435.0★ (27)In Casa Grande

How we ranked emergency HVAC contractors in Casa Grande

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 Casa Grande: questions

Which HVAC contractors in Casa Grande are open 24/7?

24 on this list post 24/7 hours, including Desert Sun Heating, Cooling & Refrigeration Inc., Prestige Air Heating & Cooling, Sunset Home Services, R&I A/Cs LLC and Airsurance.

Who is ranked #1 for emergency heating and cooling in Casa Grande, AZ?

Desert Sun Heating, Cooling & Refrigeration Inc. is #1, with a CR Score of 66 out of 100 on emergency weights.

How are emergency HVAC contractors in Casa Grande 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 Casa Grande

  1. October 2026: CR Scores recalculated for 103 hvac contractors serving Casa Grande.
  2. October 2026: 2 duplicate listings merged.

More emergency and heating and cooling pages