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Emergency HVAC Contractors in Altadena, CA (2026)

Top 50 of 1,520 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 Altadena: Brody Pennell Heating & Air Conditioning, 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 Altadena at a glance

Top emergency HVAC contractors in Altadena at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Brody Pennell Heating & Air Conditioning914.9★ (4,606)Los Angeles, 18 mi away24/7
2Purified Air Heating and Air Conditioning, Inc915.0★ (251)Pasadena, 3 mi away24/7
3JW Plumbing, Heating and Air914.8★ (2,541)Los Angeles, 13 mi away24/7
4Aire Serv of Pasadena914.9★ (394)Arcadia, 7 mi away24/7
5Monkey Wrench Plumbing, Heating, Air & Electric904.9★ (275)Glendale, 6 mi away24/7
6Precise Air Systems Inc.904.9★ (434)Los Angeles, 9 mi away24/7
7American AC Heat Plumbing904.9★ (3,299)Hawthorne, 22 mi away24/7
8Service Hero Plumbing, HVAC, and Electrical904.8★ (1,506)Covina, 16 mi away24/7
9Kahn Air Conditioning894.9★ (1,583)Van Nuys, 19 mi away24/7
10Dr Air Conditioning And Heating895.0★ (94)Pasadena, 5 mi away24/7

Call an emergency HVAC contractor in Altadena 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 Altadena, 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 1,520 is on the HVAC contractors page.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  16. #16 Mor Air

    Based in North Hollywood, 15 mi away

    89/100CR Score

    Ranked #16 because of its Google rating and availability: 5.0★ from 295 Google reviews, open 24/7.

    • 5.0★ from 295 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    11661 Saticoy St, North Hollywood, CA 91605
    View profile for Mor Air(818) 287-0457

  21. #21 Rowland Air

    Based in Santa Clarita, 24 mi away

    88/100CR Score

    Ranked #21 because of its Google rating and availability: 4.9★ from 1,810 Google reviews, open 24/7.

    • 4.9★ from 1,810 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    17007 Sierra Hwy, Canyon Country, CA 91351
    View profile for Rowland Air(661) 550-0335

Top 50 of 1,520 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 Altadena, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Fast Cool & Heat Inc.885.0★ (306)17 mi
27LC Heating & Air Conditioning885.0★ (197)15 mi
28Newness HVAC n Appliance Services885.0★ (160)14 mi
29Blueberry Air875.0★ (140)14 mi
30C&M Air Conditioning And Heating Inc875.0★ (47)7 mi
31Los Angeles Air Department874.9★ (399)19 mi
32Temp Air System Inc874.8★ (333)15 mi
33VHP AIR CONDITIONING & HEATING, Inc.875.0★ (78)11 mi
34ASH Purification Heating and Air Conditioning874.9★ (51)7 mi
35HVAC Contractor - American Cool and Heat874.9★ (61)8 mi
36Purified air heating and Air Conditioning Inc875.0★ (100)13 mi
37Manny's Heating & Air Conditioning874.9★ (183)15 mi
38Service Champions Plumbing, Heating & AC874.9★ (667)23 mi
39Ace Pelizon Plumbing, Heating & Cooling874.7★ (426)16 mi
40Duarte Heating & Air Conditioning875.0★ (64)10 mi
41High Tech HVAC - AC Repair & Installation Services in Los Angeles, Ventura County, Orange County, Riverside County874.8★ (95)10 mi
42Orange Coast Plumbing875.0★ (276)20 mi
43AARD Mechanical Air Conditioning & Heating874.9★ (547)22 mi
44Green Planet Heating and Air875.0★ (68)11 mi
45AC & HVAC Repair874.8★ (112)12 mi
46HVAC Solutions Heating & AC Repair874.7★ (41)In Altadena
47Downey Plumbing Heating & Air Conditioning874.7★ (467)18 mi
48Ayman Ibrahim HVAC Contractor875.0★ (84)14 mi
49Fleetwell Air Conditioning, Heating, and Plumbing874.9★ (488)23 mi
50Titan Air Conditioning874.9★ (439)22 mi

How we ranked emergency HVAC contractors in Altadena

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. 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
Reputation25%Bayesian-adjusted Google star rating
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2
Review volume10%log10(reviews + 1) against the list maximum
Recency10%Share of reviews from the last 12 months
Availability20%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radius
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)

Emergency HVAC contractors in Altadena: questions

Which HVAC contractors in Altadena are open 24/7?

25 on this list post 24/7 hours, including Brody Pennell Heating & Air Conditioning, Purified Air Heating and Air Conditioning, Inc, JW Plumbing, Heating and Air, Aire Serv of Pasadena and Monkey Wrench Plumbing, Heating, Air & Electric.

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

Brody Pennell Heating & Air Conditioning is #1, with a CR Score of 91 out of 100 on emergency weights.

How are emergency HVAC contractors in Altadena ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. 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 Altadena

  1. October 2026: CR Scores recalculated for 1,520 hvac contractors serving Altadena.
  2. October 2026: 9 duplicate listings merged.

More emergency and heating and cooling pages