Licensed C-20 Emergency HVAC
24/7 Emergency Available
24/7 Emergency HVAC Service — Los Angeles & Orange County
No AC during a 100° heat wave. No heat on the coldest night of the year. A unit making a sound you've never heard before. HVAC emergencies don't schedule themselves during business hours — which is why United Heating & Air Conditioning answers the phone 24 hours a day, 7 days a week, every day of the year.
- 25 Years in Business
- 24/7 Emergency Service
- CA C-20 License #1094200
- Parts & Labor Guarantee
- Lifetime Guarantee
- Discounts Available
Why United Heating & Air Conditioning for emergency HVAC
For 25 years, homeowners and businesses across Los Angeles County and Orange County have called us when comfort systems fail at the worst possible time. One call reaches a licensed C-20 contractor — not a call center that pages someone in the morning.
A live answer, 24/7
Nights, weekends, holidays — when you call (818) 817-6005, you reach our team. Heat waves and cold snaps are exactly when we're busiest, and exactly when we're available.
Equipped to fix it on the spot
Our trucks carry the common failure parts — capacitors, contactors, motors, ignitors — so most emergency calls end with a running system, not a follow-up appointment.
All systems, all brands
Central AC, heat pumps, furnaces, mini-splits, package units. Residential and light commercial. If it heats or cools a building, we work on it.
Guaranteed emergency work
Emergency repairs get the same parts & labor guarantee as scheduled work. Fast never means careless.
HVAC Emergency?
No heat. No cooling. No waiting until morning.
We answer 24 hours a day, 7 days a week — nights, weekends, and holidays — across all of Los Angeles County and Orange County.
Licensed & Accountable
A state-licensed contractor that stands behind the work
United Heating & Air Conditioning holds the CA State Warm-Air HVAC License C-20 #1094200 — the California license classification specifically for warm-air heating, ventilation, and air conditioning. 25 years in business, every job covered by our parts & labor guarantee, and our installations backed by a lifetime guarantee.
- 25 years serving LA & Orange County
- 24/7 emergency availability
- Parts & labor guarantee
- Lifetime guarantee on our installations
Related services
Where we provide emergency HVAC
Emergency HVAC is available across both counties — every city, every neighborhood, 24/7 for emergencies.
Popular service areas
Emergency HVAC — common questions
Are you really available 24/7?
Yes. United Heating & Air Conditioning runs true 24/7 emergency service across LA County and Orange County — nights, weekends, and holidays. Call (818) 817-6005 at any hour.
What counts as an HVAC emergency?
Total loss of cooling or heating in extreme weather, electrical or burning smells, water flooding from your unit, or any situation that's unsafe or rapidly getting worse. If you're not sure, call — we'll tell you honestly whether it can wait for a standard appointment.
What should I do if I smell gas near my furnace?
Leave the building immediately and call your gas utility's emergency line first — in Southern California that's SoCalGas at 1-800-427-2200. Once the immediate hazard is handled, call us to inspect and repair the furnace before you run it again.
Do you charge more for emergency calls?
Emergency service pricing depends on the time and the nature of the failure — we'll explain everything before any work begins, so there are no surprises.
Which areas do you cover for emergencies?
All of Los Angeles County and Orange County — from the San Fernando Valley to Long Beach to South Orange County.
Need emergency HVAC? Let's handle it.
Call (818) 817-6005 for 24/7 service across Los Angeles County and Orange County, or send the form and we'll call you back.
Call (818) 817-6005CA C-20 License #1094200 · 25years in business · Parts & labor guarantee
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