Los Angeles County coverage
HVAC Services Across Los Angeles County
AC repair, installation, heating, and 24/7 emergency HVAC for every LA County community — from a licensed C-20 contractor headquartered in Hollywood for 25 years.
- 25 Years in Business
- 24/7 Emergency Service
- CA C-20 License #1094200
- Parts & Labor Guarantee
- Lifetime Guarantee
- Discounts Available
HVAC service built for Los Angeles County
Los Angeles County is our home — United Heating & Air Conditioning has been headquartered in Hollywood for 25 years, and our technicians work this county every single day. We know its microclimates the way only a local contractor can: the Valley's brutal summer heat in Woodland Hills and Burbank, the salt air working on Santa Monica and Malibu equipment, the cold foothill nights in Glendale and Pasadena.
We know the housing too. LA County runs from 1920s Spanish bungalows that have never had central air to brand-new hillside construction with multi-zone smart systems — and after a quarter century here, we've worked on all of it. First-time AC installations in older homes, historic-sensitive retrofits in Pasadena, coastal-rated replacements at the beach, and emergency repairs everywhere in between.
Whatever city you're in, the standard is the same: a licensed C-20 contractor, honest diagnosis, guaranteed work, and a phone that answers 24/7.
Los Angeles County cities we serve
Every city below links to its own local service page. Don’t see yours? If it’s in Los Angeles County, we cover it — call (818) 817-6005.
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.
Our services across Los Angeles County
AC Repair
Fast, guaranteed AC repair for every major brand — backed by 25 years of experience and a parts & labor guarantee.
Learn moreAC Installation
Right-sized system selection, licensed installation, and a lifetime guarantee on our workmanship.
Learn moreEmergency HVAC
True 24/7 response across LA & OC. A live answer at (818) 817-6005 — nights, weekends, and holidays.
Learn moreHeating Repair
Furnaces, heat pumps, and wall heaters — diagnosed and repaired with safety-first gas work, 24/7.
Learn moreFurnace Repair
Ignition, blower, and heat-exchanger repairs with combustion safety checked on every visit.
Learn moreHVAC Maintenance
Real multi-point tune-ups that prevent summer breakdowns, cut energy bills, and protect your warranty.
Learn moreIndoor Air Quality
Filtration, purification, and duct sealing that protect your home's air — especially during smoke season.
Learn moreCommercial HVAC
Rooftop units, restaurants, retail & offices — commercial service scheduled around your business hours.
Learn moreHeat Pumps
One efficient electric system for heating and cooling — ideal for SoCal homes, with honest rebate guidance.
Learn moreDuctwork & Duct Replacement
Testing, sealing, repair & full replacement — because leaky ducts waste the comfort you're paying for.
Learn moreNot sure what you need?
Describe what’s happening and we’ll tell you straight — 24/7, no obligation.
(818) 817-6005Licensed & 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
Los Angeles County — common questions
Do you really cover all of Los Angeles County?
Yes — from the San Fernando Valley to the South Bay and Long Beach, the Westside to the San Gabriel Valley border cities. Our office is centrally located in Hollywood, and our service area covers the county end to end.
How fast can you respond to an emergency in LA County?
We run 24/7 emergency dispatch across the county. Response time depends on where you are and current call volume, but central LA, the Valley, and the Westside are typically our fastest zones — and we'll give you an honest ETA when you call.
Do you handle both old and new homes in LA?
Yes. LA County's housing spans a century, and so does our experience — from replacing floor furnaces in pre-war homes and designing first-time AC for bungalows, to servicing modern multi-zone variable-speed systems in new construction.
Is there an extra charge for cities far from your office?
We serve the whole county as standard territory. Any trip considerations are explained transparently when you book — no surprises on arrival.
Need HVAC help in Los Angeles County?
Call (818) 817-6005 for service anywhere in Los Angeles County — 24/7 for emergencies — or send the form and we'll call you back fast.
Call (818) 817-6005CA C-20 License #1094200 · 25years in business · Parts & labor guarantee
Request service online
Takes 30 seconds. We respond fast — 24/7.