Commercial HVAC Services
Commercial HVAC Repair That Keeps Your Building Running
Your tenants don’t care why the system went down. They care when it comes back. Circulating Air has been delivering fast commercial HVAC repair across Los Angeles for 60 years — with the crew, the parts inventory, and the diagnostic expertise to get your building back to spec fast.
Or call: (818) 764-0530
60 Years Serving Los Angeles
NATE, STAR, and TAB Certified Technicians
24/7 Emergency Dispatch
The Problem
When Commercial HVAC Fails, Everything Stops
A failed rooftop unit isn’t an inconvenience — it’s a business disruption. Employees lose productivity. Tenants call their attorneys. Sensitive equipment overheats. Health codes get triggered. And every hour the system is down, you’re fielding complaints instead of managing your facility.
Tenant complaints spiking
Utility costs climbing with no explanation
Repeated breakdowns on the same unit
Utility costs climbing with no explanation
What We Do
Full-Spectrum Commercial Repair — From Rooftop Units to Central Plant
We repair every major commercial HVAC system type across Los Angeles and the surrounding region. Our technicians average 10+ years in the field and carry NATE, STAR, and TAB certifications — meaning they diagnose accurately the first time, not on the third visit.
Rooftop Units (RTUs)
All major manufacturers, all tonnages
Split Systems and VRF
Including multi-zone commercial configurations
Chillers
Air-cooled and water-cooled, centrifugal and scroll
Boilers and Heating Systems
Gas-fired, electric, hydronic
Air Handling Units (AHUs)
Motor replacement, coil repair, control integration
Building Automation Systems
Controls diagnostics and integration issues
Ductwork and Distribution
Balancing, leak repair, zone control problems
Why Circulating Air
Why Los Angeles Facility Managers Call Us First
We’ve been repairing commercial systems in Los Angeles since 1965. We understand the building stock, the local codes, and the mechanical quirks of everything from 1970s office towers to brand-new Class A developments.
60
Years in Commercial HVAC
150+
Employees
Certified
NATE, STAR & TAB Certified Technicians
24/7
Emergency Dispatch
1 Year
Warranty on New Installs
Proven
UCLA, LAUSD, Westfield, and hundreds of commercial properties
Don't Wait for the Next Complaint
60 years of commercial HVAC experience. 150+ employees ready to deploy. Tell us what your building needs.
Our Process
What to Expect
1
You Call. We Answer.
Reach a real dispatcher — not a phone tree — 24 hours a day. Describe the issue and we’ll match you with the right technician.
2
Fast Dispatch
For emergencies, we target under 2 hours. For scheduled repairs, we work around your building’s operating hours to minimize tenant disruption.
3
Diagnose Before We Wrench
Our technicians assess the full system, not just the symptom. Clear explanation and written scope before any work begins.
4
Repair and Verify
We complete the repair, test under load, and confirm performance before we leave. No callbacks. No guesswork.
5
Documentation Delivered
Detailed service report for property management records, tenant communication, and warranty tracking.
6
Maintenance Recommendation
We assess whether the failure points to a pattern. If a preventive maintenance program would help, we’ll tell you — so the next call is scheduled, not emergency.
Commercial HVAC Repair — Frequently Asked Questions
Got questions about commercial HVAC repair? Here’s what facility managers ask us most.
How quickly can you respond to an emergency repair?
We dispatch 24/7 with an average emergency response time under 2 hours across the greater Los Angeles area. For critical failures — no cooling in an occupied building, refrigerant leaks, safety concerns — we prioritize same-day arrival.
Do you work on all commercial HVAC brands and system types?
Yes. Our technicians are trained and certified across all major manufacturers, including Carrier, Trane, Lennox, Daikin, York, and McQuay. We work on rooftop units, split systems, VRF, chillers, boilers, AHUs, and building automation controls.
What does a commercial HVAC repair typically cost?
Cost depends on system type, failure mode, and parts required. We provide a written scope and estimate before beginning work. For ongoing relationships, our service agreements include preferred pricing on repairs.
Can you repair our system even if another company installed it?
Absolutely. We repair systems regardless of who installed or previously serviced them. Our technicians diagnose based on the equipment, not the installer.
Do you offer service agreements for ongoing repair coverage?
Yes. Our commercial service agreements include priority dispatch, preferred repair pricing, and scheduled preventive maintenance to reduce emergency calls.
Related Services
Commercial Installation
When repair costs outweigh replacement value, we handle full system installation with the same team that knows your building.
Preventive Maintenance
Reduce emergency repairs by up to 40% with a structured maintenance program designed for commercial systems.
Service Agreements
Lock in priority response, preferred pricing, and scheduled maintenance with a Circulating Air service agreement.
Emergency HVAC Service
System down now? Our 24/7 emergency line gets a technician dispatched immediately.
Ready to Discuss Your Project?
60 years of commercial HVAC experience. 150+ employees ready to deploy. Tell us what your building needs.