AC & Furnace Installation & Replacement in South Orange County
Expert AC and heating installation and replacement. Right-sized, energy-efficient equipment, clean professional workmanship, flexible financing, and a satisfaction guarantee. Available 24/7.
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New AC & furnace installation and replacement in South Orange County
A new high-efficiency system is one of the best upgrades you can make to an Orange County home — lower energy bills, quieter operation, better comfort in every room, and years of reliable service. South County Air Services designs and installs the right-sized system for your home, with upfront pricing, financing options, and a clean, professional install by our own team.
Is it time to replace your system?
- Your AC or furnace is 12–15+ years old
- Repairs are getting frequent or expensive
- Energy bills keep climbing
- Some rooms never get comfortable
- Your system uses older R-22 refrigerant
- It’s loud, or runs constantly
What we install
❄ Air conditioners
High-efficiency central AC sized correctly for your home — cooler, quieter, and far more energy-efficient than older units.
🔥 Furnaces & heat pumps
Gas furnaces and modern heat pumps that heat and cool efficiently — ideal for OC’s mild winters.
🌬 Ductless mini-splits
Perfect for additions, garages, and rooms that never get comfortable — zoned comfort with no ductwork.
Our installation process
- Free in-home assessment. We evaluate your home, ductwork, and comfort goals — and properly size the system (no guesswork).
- Upfront proposal. Clear options and flat pricing, with financing available — no pressure.
- Professional install. Our own technicians install cleanly and protect your home, usually in a single day.
- Walkthrough & warranty. We test everything, show you how it works, and register your manufacturer warranty.
Why homeowners choose South County
- Correctly sized systems (an oversized unit wastes money and wears out faster)
- Upfront, flat-rate pricing & financing
- Lifetime workmanship guarantee
- Family-owned, licensed & insured (CA License #1062690)
Pair your new system with regular maintenance to protect your investment, and remember we’re here for repairs on any system, anytime.
Installation across South Orange County, including Irvine, Tustin, Mission Viejo, Aliso Viejo, Laguna Niguel, Dana Point and more.
Installation FAQ
How much does a new AC or HVAC system cost?
How much does a new furnace cost?
Should I replace my AC and furnace at the same time?
How long does a new system installation take?
How long does an AC unit last?
What size system do I need?
Do you offer financing or rebates?
Get a free installation estimate
No-pressure, in-home assessment and upfront pricing across South Orange County.
Helpful HVAC Terms
Quick definitions for the parts and terms behind your comfort system.
Current specials & offers
In-Home Estimate
A New Full System
Any Repair
What your neighbors say
I cannot thank South County Air Services enough for impeccable customer service. Behshad came out on a Saturday to check my heating unit (failing motor). He was professional, knowledgeable, courteous and thorough – extremely fair pricing, with open and honest communication. Highly recommend. Five star plus!
Super impressed with our experience. We needed to replace our 40+ year old furnace, and from the first call everything was easy and clearly explained. Responsive, great follow-up, great pricing, timely booking, installers on time and prepared, clean install, no mess left.
I am grateful to the technician who inspected my HVAC system today. I feel he did a thorough inspection and told me the truth about my unit. I had two other companies beforehand – the first gave me a report that would call for major expenditure.
You will not find a more honest and knowledgeable HVAC tech. They show up on time and are very professional, but most of all will not try to upcharge you. He could have charged me significantly more but cares about diagnosing the actual problem. I found my HVAC tech – 10 star review if I could!
It’s not often you find an honest business willing to give suggestions over the phone to troubleshoot why my HVAC wasn’t working – without charging me. After a couple minutes we determined my breaker popped and all I needed was to reset it. I appreciate Behshad and will definitely use him in the future.
I spoke with the owner on a Saturday morning and he was at my house within 45 minutes. Another company wanted $3,000 in repairs; Behshad recommended a simple $250 repair that fixed the issue. Very honest, thorough, and reliable!
I cannot thank South County Air Services enough for impeccable customer service. Behshad came out on a Saturday to check my heating unit (failing motor). He was professional, knowledgeable, courteous and thorough – extremely fair pricing, with open and honest communication. Highly recommend. Five star plus!
Super impressed with our experience. We needed to replace our 40+ year old furnace, and from the first call everything was easy and clearly explained. Responsive, great follow-up, great pricing, timely booking, installers on time and prepared, clean install, no mess left.
I am grateful to the technician who inspected my HVAC system today. I feel he did a thorough inspection and told me the truth about my unit. I had two other companies beforehand – the first gave me a report that would call for major expenditure.
You will not find a more honest and knowledgeable HVAC tech. They show up on time and are very professional, but most of all will not try to upcharge you. He could have charged me significantly more but cares about diagnosing the actual problem. I found my HVAC tech – 10 star review if I could!
It’s not often you find an honest business willing to give suggestions over the phone to troubleshoot why my HVAC wasn’t working – without charging me. After a couple minutes we determined my breaker popped and all I needed was to reset it. I appreciate Behshad and will definitely use him in the future.
I spoke with the owner on a Saturday morning and he was at my house within 45 minutes. Another company wanted $3,000 in repairs; Behshad recommended a simple $250 repair that fixed the issue. Very honest, thorough, and reliable!
Comfort now, pay over time.
$0 down and flexible monthly financing available on qualifying systems, with approved credit.
Let’s make your home comfortable again.
Same-day service from certified local pros — available 24/7.