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Emergency HVAC Contractors in Merced, CA (2026)

Top 50 of 53 HVAC contractors, in emergency orderUpdated 0 paid placements in this rankingHow we rank

12 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 Merced: ARMS Air Conditioning And Heating, 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 Merced at a glance

Top emergency HVAC contractors in Merced at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1ARMS Air Conditioning And Heating674.9★ (1,417)Atwater, 7 mi away24/7
2Cosmic Comfort Electrical & HVAC | Merced664.9★ (719)Atwater, 7 mi away24/7
3N & C Heating and Air LLC654.9★ (185)Merced24/7
4Perez Repair Heating & Air644.8★ (103)Merced24/7
5ZACS AIR SYSTEMS634.9★ (59)Merced24/7
6Wally Falke's Heating & Air Conditioning624.9★ (1,295)Turlock, 24 mi away24/7
7Evolution Heating & Cooling604.9★ (312)Turlock, 24 mi away24/7
8Air Tactics584.9★ (17)Atwater, 10 mi away24/7
9Cosmic Comfort Electrical & HVAC574.9★ (79)Turlock, 24 mi away24/7
10Stanislaus Air Technologies, Inc575.0★ (30)Ceres, 19 mi away24/7

Call an emergency HVAC contractor in Merced 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 Merced, 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 53 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.

  5. #5 ZACS AIR SYSTEMS

    Based in Merced

    63/100CR Score

    Ranked #5 because of its Google rating and trade focus: 4.9★ from 59 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 59 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6 E 27th St, Merced, CA 95340
    View profile for ZACS AIR SYSTEMS(209) 626-0907

  8. #8 Air Tactics

    Based in Atwater, 10 mi away

    58/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.9★ from 17 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 17 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Air Tactics(209) 720-8151

  13. #13 Holl Sheet Metal

    Based in Merced

    47/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.9★ from 280 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 280 Google reviews
    Hours
    Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
    Address
    3811 State Hwy 59, Merced, CA 95348
    View profile for Holl Sheet Metal(209) 722-7463

  18. #18 Ace Air Inc

    Based in Merced

    43/100CR Score

    Ranked #18 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 35 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    2330 Canal St Suite A, Merced, CA 95340
    View profile for Ace Air Inc(209) 722-2200

  25. #25 Calor Air HVAC

    Based in Merced

    41/100CR Score

    Ranked #25 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 7 Google reviews
    Hours
    Mon–Fri 7 AM–10 PM · Sat–Sun 7 AM–5 PM
    View profile for Calor Air HVAC(209) 446-7300

Top 50 of 53 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 Merced, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Econo Air HVAC404.6★ (114)17 mi
27Dani's Heating And Air Conditioning404.8★ (28)10 mi
28Sas Appliances402.8★ (23)In Merced
29The Air Doctor405.0★ (65)18 mi
30HAC Heating & Air Conditioning Inc.404.1★ (18)7 mi
31Kyhn's Air Conditioning & Heating404.0★ (32)9 mi
32Cooling Heating & Air Conditioning395.0★ (3)In Merced
33Universal Air HVAC Inc.394.8★ (81)23 mi
34Chowchilla Barn Burner394.6★ (25)18 mi
35Comfort Zone385.0★ (7)9 mi
36Advanced Heating and Air Contractors385.0★ (4)6 mi
37Airmergency Inc385.0★ (22)18 mi
38Jantz Electrical384.4★ (5)8 mi
39Ikes Appliance and Associates374.2★ (97)24 mi
40American Comfort Heating & Air Conditioning374.9★ (8)15 mi
41Express Repair Heating and Air375.0★ (3)9 mi
42Conley Heating & Air Inc.374.4★ (9)16 mi
43ALL AC SERVICE375.0★ (6)14 mi
44CNR Heating and Air Conditioning364.4★ (7)16 mi
45Saunders Air Conditioning & Heating363.4★ (7)17 mi
46Delta Air Systems Inc354.6★ (17)25 mi
47Horizon Heating and Air Conditioning355.0★ (5)21 mi
48Duct Team Air Ducts Cleaning355.0★ (8)25 mi
49Precision Home Improvement354.2★ (5)21 mi
50J P Heating & Air334.0★ (3)23 mi

How we ranked emergency HVAC contractors in Merced

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 Merced: questions

Which HVAC contractors in Merced are open 24/7?

12 on this list post 24/7 hours, including ARMS Air Conditioning And Heating, Cosmic Comfort Electrical & HVAC | Merced, N & C Heating and Air LLC, Perez Repair Heating & Air and ZACS AIR SYSTEMS.

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

ARMS Air Conditioning And Heating is #1, with a CR Score of 67 out of 100 on emergency weights.

How are emergency HVAC contractors in Merced 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 Merced

  1. October 2026: CR Scores recalculated for 53 hvac contractors serving Merced.
  2. October 2026: 3 duplicate listings merged.

More emergency and heating and cooling pages