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Emergency HVAC Contractors in Castaic, CA (2026)

Top 50 of 618 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 Castaic: Rowland Air, 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 Castaic at a glance

Top emergency HVAC contractors in Castaic at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Rowland Air654.9★ (1,810)Santa Clarita, 11 mi away24/7
2AZ Air Conditioning and Heating644.8★ (3,170)North Hills, 15 mi away24/7
3Air Crew644.9★ (425)Santa Clarita, 5 mi away24/7
4Tassio Temperature Control635.0★ (161)Valencia, 4 mi away24/7
5JC Refrigeration Heating and Air625.0★ (101)Santa Clarita, 5 mi away24/7
6Kahn Air Conditioning624.9★ (1,583)Van Nuys, 21 mi away24/7
7Conejo Services HVAC, Plumbing and Electrical624.9★ (86)Valencia, 3 mi away24/7
8Dutton Plumbing, Cooling & Heating624.8★ (2,247)Camarillo, 23 mi away24/7
9Fleetwell Air Conditioning, Heating and Plumbing624.8★ (123)Valencia, 5 mi away24/7
10Pacific Heating & Air Conditioning625.0★ (37)Castaic24/7

Call an emergency HVAC contractor in Castaic 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 Castaic, 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 618 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.

  1. Ranked #1 in Castaic

    #1 Rowland Air

    Based in Santa Clarita, 11 mi away

    65/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.9★ from 1,810 Google reviews, listed on Google as “HVAC contractor”.

    • 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

  3. #3 Air Crew

    Based in Santa Clarita, 5 mi away

    64/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.9★ from 425 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 425 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    27720 Avenue Scott Ste # 140, Santa Clarita, CA 91355
    View profile for Air Crew(661) 430-6644

  12. #12 Most Valuable Plumber

    Based in Santa Clarita, 9 mi away

    61/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.8★ from 156 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 156 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    22924 Lyons Ave UNIT 208, Santa Clarita, CA 91321
    View profile for Most Valuable Plumber(818) 293-4210

  17. #17 Scv Air Conditioning

    Based in Santa Clarita, 9 mi away

    60/100CR Score

    Ranked #17 because of its Google rating and trade focus: 5.0★ from 61 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 61 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    26917 Furnivall Ave, Santa Clarita, CA 91351
    View profile for Scv Air Conditioning(661) 239-6460

  19. #19 Active Air Specialists

    Based in Santa Clarita, 11 mi away

    60/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.9★ from 78 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 78 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    18565 Soledad Canyon Rd, Santa Clarita, CA 91351
    View profile for Active Air Specialists(661) 674-6946

  23. #23 MB Heating and Air

    Based in Simi Valley, 16 mi away

    60/100CR Score

    Ranked #23 because of its Google rating and trade focus: 5.0★ from 121 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 121 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4440 Industrial St, Simi Valley, CA 93063
    View profile for MB Heating and Air(818) 518-4844

Top 50 of 618 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 Castaic, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26AK HVAC Contractors Santa Clarita595.0★ (31)7 mi
27Coast AC & Heater Repair Newhall595.0★ (34)9 mi
28Mor Air595.0★ (295)24 mi
29SC HVAC SERVICE594.9★ (50)11 mi
30Specialty Air Conditioning & Heating Repair595.0★ (35)10 mi
31Airintel HVAC Inc595.0★ (191)22 mi
32CrackerJack Air and Plumbing Pros595.0★ (172)21 mi
33United Heating & Air Conditioning594.8★ (164)18 mi
34Real Air Hvac595.0★ (7)In Castaic
35Top Choice Heating & AC Repair Stevenson Ranch595.0★ (24)8 mi
36Trinity Group Appliance HVAC Repair594.8★ (123)18 mi
37Fresh Air Conditioning & Heating594.9★ (86)17 mi
38Action Heating & Air Conditioning Valencia595.0★ (9)3 mi
39Season Control Heating & Air Conditioning584.7★ (235)21 mi
40TOTO Air inc585.0★ (180)23 mi
41Service Heroes Heating & Air Conditioning585.0★ (57)16 mi
42Spectrum Heating and Air584.9★ (98)18 mi
43Cool Zone Heating & AC Repair Valencia585.0★ (12)6 mi
44Arctic Air-Quartz Hill HVAC and A/C repair584.9★ (201)24 mi
45Season Control Heating & Air Conditioning584.9★ (111)20 mi
46Air Control Heating & Air Conditioning584.9★ (11)6 mi
47Fix it Fast Plumbing Heating & AC Repair585.0★ (61)17 mi
48Conejo Services HVAC, Plumbing and Electrical584.9★ (207)25 mi
49Fix it Fast Plumbing Heating & AC Repair584.7★ (171)21 mi
50Pro HVAC Santa Clarita585.0★ (19)10 mi

How we ranked emergency HVAC contractors in Castaic

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 Castaic: questions

Which HVAC contractors in Castaic are open 24/7?

25 on this list post 24/7 hours, including Rowland Air, AZ Air Conditioning and Heating, Air Crew, Tassio Temperature Control and JC Refrigeration Heating and Air.

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

Rowland Air is #1, with a CR Score of 65 out of 100 on emergency weights.

How are emergency HVAC contractors in Castaic 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 Castaic

  1. October 2026: CR Scores recalculated for 618 hvac contractors serving Castaic.
  2. October 2026: 3 duplicate listings merged.

More emergency and heating and cooling pages