Commercial HVAC Controls & BMS Support in Orange County
Legit Air provides fast, expert troubleshooting for legacy Carrier, Andover, and Alerton controls. We help property managers, facility directors, business owners, and school districts stop hot/cold complaints and get air handlers back online.
Reduce Tenant Complaints
Stop the endless hot/cold calls. We dial in your VAV boxes and restore proper airflow scheduling to keep occupants happy.
Legacy System Experts
We keep aging Carrier CCN and Andover Continuum systems alive so you don’t have to spend a fortune to replace them.
Commercial & K-12 Ready
DIR registered, fully insured, and DOJ Live Scan background-checked for active campuses & secure facilities.
Fast B2B Dispatch
When an RTU drops offline, we act as a direct extension of your maintenance or commercial property management team.
Clear Digital Reporting
Receive detailed diagnostic reports and transparent quotes, making it easy to get board or property owner approvals.
Energy Optimization
We don’t just fix breakdowns; we fine-tune your schedules and setpoints to slash wasted energy and lower utility costs.
Industries & Facilities We Support
From small retail shops to large multi-tenant office buildings, we design our services around how your business operates.
🏢 Property Managers & Offices
We partner with commercial property management groups to keep tenants comfortable, reduce utility waste after hours, and maintain aging multi-story HVAC equipment.
🏫 School Districts (K-12 M&O)
Direct PO support for district M&O departments. We are DIR registered, CUPCCAA compliant, and our technicians are DOJ Live Scan cleared to work safely on active campuses.
🏪 Retail Shops & Restaurants
Tired of employees leaving the AC on all night? We provide smart thermostat lockouts, remote smartphone access, and fast emergency repair for storefront spaces.
⚙️ Facility Directors
When your in-house building engineer is stumped by a VFD fault, a broken BACnet schedule, or a locked-out front end, we provide the high-level technical backup you need.
🏥 Medical Offices & Clinics
We provide precision temperature and ventilation control troubleshooting for waiting rooms, sensitive equipment areas, and patient care facilities.
🏭 Warehouses & Industrial
Keep inventory safe and staff comfortable. We manage complex multi-zone rooftop units, exhaust fans, and warehouse heating systems for large-scale facilities.
Controls Systems We Fix & Support
We specialize in the exact systems powering Orange County commercial buildings.
Carrier CCN & i-Vu
- Comm bus troubleshooting
- RTU & VAV board replacements
- Restoring lost schedules
- Bad sensor diagnostics
- i-Vu web server support
Andover Continuum
- End-of-life panel maintenance
- Extending legacy system life
- Controller and board swaps
- Clearing system faults
- Migration planning to Schneider
Alerton & Niagara
- Niagara N4 integrations
- Broken front-end graphics
- Password lockouts resolved
- BACnet driver conflicts
- Clearing offline points
System Emergencies
- Zones stuck in heating/cooling
- VFD fault diagnostics
- Pneumatic to DDC issues
- Thermostat lockouts
- Relief for stumped maintenance staff
Smart Thermostats
- Commercial Wi-Fi thermostats
- Employee passcode lockouts
- Remote smartphone access
- Automated holiday scheduling
- Max heating/cooling setpoint limits
Controls Maintenance
- Bi-annual system checkups
- Sensor calibration & testing
- Actuator & damper inspections
- Software backups & updates
- Preventing costly offline events
Got an aging Andover or Carrier CCN system acting up?
Before committing your budget to a complete system tear-out, let Joe and the Legit Air team perform a targeted diagnostic. We frequently resolve panel faults, repair legacy loops, and get commercial units back online at a fraction of the cost of a full overhaul.
Call for a System DiagnosticCommercial & Controls FAQs
Do you work with property management companies and commercial landlords?
Yes! We understand the unique needs of property managers. We communicate clearly with your tenants, provide detailed diagnostic reports for property owners, and fix HVAC issues quickly to prevent lease disputes over building temperature.
Can you lock my retail/business thermostats so employees stop changing them?
Absolutely. We can install smart commercial thermostats with passcodes, maximum/minimum setpoint limits, and remote access via your smartphone. You will have ultimate control over your energy bills.
Are you approved to work for local K-12 school districts?
Yes. Legit Air is registered with the California Department of Industrial Relations (DIR) for public works. We accept direct Purchase Orders from M&O departments, and our technicians undergo strict DOJ Live Scan clearances.
Our building has a really old Andover system. Can you still get parts?
Yes! We specialize in maintaining end-of-life systems like Andover Continuum and older Carrier networks. We can source refurbished boards, repair existing hardware, or map the old points into a newer open-protocol front end.
Keep Your Building Comfortable & Efficient
Call Orange County’s trusted commercial HVAC & controls specialists.
(714) 213-9864Need us on your property vendor list? Email us for our W9 and COI info.