What Commercial HVAC technicians do
Commercial HVAC contractors are licensed mechanical professionals who service large-scale systems, including rooftop units (RTUs), variable air volume (VAV) systems, chilled-water plants, and building automation system (BAS) controls. Their scope extends beyond residential technicians to include energy retro-commissioning—systematically returning equipment to design-specification airflow, refrigerant charge, and BAS scheduling—as well as economizer actuator testing, cooling tower chemical treatment, and ASHRAE-standard energy audits. Commercial teams work under SLA-based maintenance contracts that specify emergency response windows, parts stocking requirements, and equipment runtime documentation for facility managers.
Key terms: RTU · VAV · BAS controls · economizer · chilled-water loop
Service scope and common projects
RTU installation, service, and coil maintenance
BAS integration and controls tuning
Chilled water and boiler plant support
Energy audits and retro-commissioning
Preventative maintenance contracts with SLA response
How much does commercial hvac cost in the USA?
| Service | Typical range | Notes |
|---|---|---|
| RTU service visit | $350 – $1,200 | Pricing varies by labor rates, equipment, and permits. |
| PM contract | $1,500 – $6,000 / year | Pricing varies by labor rates, equipment, and permits. |
| Controls upgrade | $3,000 – $20,000 | Pricing varies by labor rates, equipment, and permits. |
Prices reflect national ranges. Select a state below for localized availability.