Fifty years of precise comfort
Proudly Providing the Highest Quality Lennox Products for Over 45 Years — from our San Fernando Road shop to 52 communities across Southern California.
Built in Los Angeles. Proven since 1975.
Precise Air Systems was established in 1975, and for over 51 years we've done one thing with total focus: match Southern California homes and businesses with the highest quality Lennox comfort systems — and install them precisely.
The formula hasn't changed in five decades. Measure carefully. Recommend honestly. Price transparently, with no hidden fees. Install to manufacturer specification. Clean up thoroughly. And be there for your family when you need us most.
Today we serve 52 communities — from the Westside and the San Gabriel Valley to Orange County, the Inland Empire, the Coachella Valley, and San Diego County. You can even find us at your local Costco.
The 50-years mark isn't a design flourish — it's 51+ real years of service under CSLB #428900.
Our written guarantees
- Transparent, upfront pricing with no hidden fees
- Thorough cleanup after every job is completed
- Free comprehensive home safety inspections
Four pillars, unchanged since 1975
Precision, literally
Our name is our method. We measure homes, calculate loads, and size systems with engineering discipline — because comfort problems are usually precision problems.
The Lennox standard
As your local Lennox dealer in Los Angeles, we install and service the full Lennox line — equipment we've trusted and stood behind for over 51 years.
There when it matters
We're there for your family when you need us most. That promise has carried us from 1975 to today, one Southern California home at a time.
Beyond residential
From homes to light commercial and new construction, our mechanical engineering capability covers projects most residential contractors can't.
Licensed, certified, and accountable
- CSLB #428900
- Lennox Dealer
- NATE Certified
- BBB Accredited
- ENERGY STAR
- 5467 W San Fernando Rd, Los Angeles, CA
You can find us at your local Costco Call (818) 240-1737 — or request an estimate online.
Transparent pricing, factory-trained technicians, and a free comprehensive home safety inspection with our service.