Orange County service area
HVAC Services in Irvine, CA
Irvine's master-planned villages mean housing built in well-defined waves — and HVAC systems that age in waves with them. Entire neighborhoods of Northwood and Woodbridge are hitting equipment replacement age together. United Heating & Air Conditioning serves all of Irvine's villages.
- 25 Years in Business
- 24/7 Emergency Service
- CA C-20 License #1094200
- Parts & Labor Guarantee
- Lifetime Guarantee
- Discounts Available
A contractor that knows Irvine
Newer villages like Great Park bring the opposite work: high-efficiency systems under builder warranty that need correct, documented maintenance. We handle both ends of Irvine's HVAC lifecycle with 25 years of experience.
Local insight
Irvine's village-by-village construction waves mean we often replace the same builder-grade equipment across a neighborhood — we know these systems' exact weak points before we open the panel, and HOA architectural requirements are routine for us.
Why Irvine calls United Heating & Air Conditioning
- 25 years serving LA & Orange County
- Licensed C-20 HVAC contractor
- 24/7 emergency response
- Parts & labor guarantee
- Lifetime guarantee on installations
- Discounts available — ask when you call

Licensed C-20 work in Irvine — honest recommendations, guaranteed results, since 2001.
HVAC services available in Irvine
HVAC Emergency in Irvine?
No heat. No cooling. No waiting until morning.
We answer 24 hours a day, 7 days a week — nights, weekends, and holidays — across Irvine and 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
HVAC in Irvine — common questions
Our whole Irvine neighborhood was built at once — does that matter for HVAC?
Very much. Builder-grade systems installed together fail together — if your neighbors are replacing equipment, yours is likely close behind. A maintenance inspection tells you where your system actually stands so you can plan.
Do you handle Irvine HOA requirements for equipment replacement?
Yes — Irvine's HOAs commonly have placement, screening, and noise requirements for outdoor equipment. We've worked within these rules across the city's villages for years.
Need HVAC service in Irvine?
Call (818) 817-6005 — 24/7, including emergencies — or send the form and we'll get back to you fast.
Call (818) 817-6005CA C-20 License #1094200 · 25years in business · Parts & labor guarantee
Request service online
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