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Emergency HVAC Contractors in Westmont, CA (2026)

Top 50 of 1,785 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 Westmont: American AC Heat Plumbing, 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 Westmont at a glance

Top emergency HVAC contractors in Westmont at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1American AC Heat Plumbing674.9★ (3,299)Hawthorne, 2 mi away24/7
2Brody Pennell Heating & Air Conditioning664.9★ (4,606)Los Angeles, 8 mi away24/7
3Adeedo Plumbing, Drains & Heating664.7★ (2,821)Los Angeles, 4 mi away24/7
4Power Pro Plumbing Heating & Air664.8★ (2,576)Gardena, 5 mi away24/7
5Drain Right Services664.9★ (1,770)Gardena, 5 mi away24/7
6Carter Services654.9★ (1,990)Torrance, 7 mi away24/7
7JW Plumbing, Heating and Air654.8★ (2,541)Los Angeles, 7 mi away24/7
8Service Champions Plumbing, Heating & AC654.9★ (667)Los Angeles, 4 mi away24/7
9Power Pro Plumbing Heating & Air644.9★ (1,582)Cerritos, 13 mi away24/7
10Air Tech 24 Heating and Air Conditioning634.9★ (387)Torrance, 7 mi away24/7

Call an emergency HVAC contractor in Westmont 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 Westmont, 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 1,785 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 Drain Right Services

    Based in Gardena, 5 mi away

    66/100CR Score

    Ranked #5 because of its Google rating and trade focus: 4.9★ from 1,770 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 1,770 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    18012 S Figueroa St, Gardena, CA 90248
    View profile for Drain Right Services(800) 208-8875

  6. #6 Carter Services

    Based in Torrance, 7 mi away

    65/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.9★ from 1,990 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 1,990 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2807 Oregon Ct F3, Torrance, CA 90503
    View profile for Carter Services(310) 807-3426

  21. #21 MGM Appliance Repair

    Based in Los Angeles, 5 mi away

    62/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.9★ from 110 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 110 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5309 Knowlton St, Los Angeles, CA 90045
    View profile for MGM Appliance Repair(310) 708-5967

  22. #22 Kahn Air Conditioning

    Based in Van Nuys, 21 mi away

    62/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.9★ from 1,583 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 1,583 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    15073 Keswick St, Van Nuys, CA 91405
    View profile for Kahn Air Conditioning(818) 619-0740

  25. #25 Controlled Comfort

    Based in Lawndale, 5 mi away

    61/100CR Score

    Ranked #25 because of its Google rating and trade focus: 5.0★ from 78 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 78 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4633 Marine Ave UNIT 231, Lawndale, CA 90260
    View profile for Controlled Comfort(310) 387-3310

Top 50 of 1,785 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 Westmont, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Precise Air Systems Inc.614.9★ (434)15 mi
27A/C Control, Inc614.7★ (293)10 mi
28John & Son HVAC Service614.9★ (63)3 mi
29Monkey Wrench Plumbing, Heating, Air & Electric614.8★ (284)12 mi
30Orange Coast Plumbing615.0★ (276)15 mi
31K & L HVAC & Construction Services615.0★ (89)8 mi
32Palms Appliance Repair and HVAC615.0★ (92)8 mi
33Stephens Plumbing, Heating & Air Conditioning614.7★ (417)14 mi
34Los Angeles ❄️ Air Conditioning Service614.9★ (132)10 mi
35Kline AC Repair Services605.0★ (46)5 mi
36Service All-Stars Plumbing Heating and Air Comfort604.6★ (286)11 mi
37Cozy Air Conditioning604.9★ (93)8 mi
38R&C Heating and Cooling Service605.0★ (97)10 mi
39California Air Conditioning Systems604.6★ (201)10 mi
40Top Heating AC604.7★ (55)4 mi
41Mega Clean Air605.0★ (223)16 mi
42Purified Air Heating and Air Conditioning, Inc605.0★ (251)17 mi
43CDY-HVAC INC604.9★ (26)2 mi
44Red Apple Air Conditioning604.9★ (107)11 mi
45WINN AIR CORP605.0★ (45)7 mi
46Garcia Air Systems605.0★ (35)5 mi
47JennAir Appliance Repair604.8★ (37)5 mi
48Martin’s AC & Heating Services604.6★ (54)5 mi
49Mor Air605.0★ (295)19 mi
50Norris AC & Heat605.0★ (47)7 mi

How we ranked emergency HVAC contractors in Westmont

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 Westmont: questions

Which HVAC contractors in Westmont are open 24/7?

25 on this list post 24/7 hours, including American AC Heat Plumbing, Brody Pennell Heating & Air Conditioning, Adeedo Plumbing, Drains & Heating, Power Pro Plumbing Heating & Air and Drain Right Services.

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

American AC Heat Plumbing is #1, with a CR Score of 67 out of 100 on emergency weights.

How are emergency HVAC contractors in Westmont 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 Westmont

  1. October 2026: CR Scores recalculated for 1,785 hvac contractors serving Westmont.
  2. October 2026: 9 duplicate listings merged.

More emergency and heating and cooling pages