Top 10 24 Hour HVAC in Irvine, CA

Updated March 2026

Why 24-Hour Hvac Service Matters in Irvine, CA

Emergencies don't follow business hours. Whether it's a burst pipe at midnight or a furnace failure during a cold snap, having access to a reliable 24-hour hvac in Irvine, CA can prevent thousands of dollars in damage and keep your family safe.

💡 Quick Tips:
  • Ask about after-hours surcharges upfront — some Irvine, CA companies charge flat rates even at night
  • Save your top pick's number in your phone before an emergency happens
  • Check if the company dispatches their own technicians or uses a call center
1

Positive Plumbing, Heating & AC Repair

14271 Jeffrey Rd Ste 206, Irvine, CA 92620, USA
★★★★½ 4.9 (140 reviews)
Licensed & InsuredTop Rated
Services: 24 Hour Hvac
2

Irvine Air

1 League #63201, Irvine, CA 92602, USA
★★★★★ 5 (76 reviews)
Licensed & InsuredTop Rated
Services: 24 Hour Hvac
3

South County Air Services

2630 Walnut Ave Suite G, Tustin, CA 92780, USA
★★★★★ 5 (206 reviews)
Licensed & InsuredTop Rated
Services: 24 Hour Hvac
4

White Mechanical, Inc.

27221 Burbank, Foothill Ranch, CA 92610, USA
★★★★½ 4.9 (484 reviews)
Licensed & Insured
Services: 24 Hour Hvac
5

Just Right Services

23482 Peralta Dr Suite C, Laguna Hills, CA 92653, USA
★★★★½ 4.9 (874 reviews)
Licensed & Insured
Services: 24 Hour Hvac
6

Heating & Air Conditioning

14244 Culver Dr #699, Irvine, CA 92604, USA
★★★★★ 5 (10 reviews)
Services: 24 Hour Hvac
7

NexGen HVAC & Plumbing

5472 E La Palma Ave, Anaheim, CA 92807, USA
★★★★½ 4.7 (2,324 reviews)
Services: 24 Hour Hvac
8

True North Heating & Air

4 Venture, Irvine, CA 92618, USA
★★★★½ 4.9 (74 reviews)
Services: 24 Hour Hvac
9

Triton Air & Plumbing

25652 Commercentre Dr, Lake Forest, CA 92630, USA
★★★★½ 4.8 (1,104 reviews)
Services: 24 Hour Hvac
10

NexGen HVAC & Plumbing

23221 Peralta Dr Ste C, Laguna Hills, CA 92653, USA
★★★★½ 4.8 (3,608 reviews)
Services: 24 Hour Hvac

About These Listings

Provider details on this page come from public business information and each provider's own website. Inclusion here is not an endorsement, and the order shown is not a guarantee of quality. Before hiring, verify licensing, insurance, and pricing directly with the company — request written quotes and confirm credentials with your state or local licensing board.

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