Commercial HVAC Service in the Bay Area
Downtime costs your business money — and unhappy tenants. Therma Tech delivers fast, professional commercial HVAC service for offices, retail, restaurants, medical, and warehouse properties across San Jose and the Bay Area.
Licensed & Insured
CA #913806
NATE-Certified
Background-checked techs
4.9★ Rated
900+ verified reviews
18+ Years
Serving the Bay Area
Our commercial division services rooftop units (RTUs), split systems, VRF/VRV systems, packaged units, and walk-in coolers. We work with property managers, facility teams, and small-business owners under flat-rate pricing and preventive maintenance agreements that prevent the call you don't want at 4 PM on a Friday.
Need a system replaced? We handle permitting, crane lifts, structural coordination, and energy-rebate paperwork. Our installs are clean, code-compliant, and on-schedule — because a contractor that doesn't show up costs you more than the bid.
Priority commercial response means we hold dedicated slots for our agreement customers. Most calls get an on-site technician the same day, and after-hours support is available for true emergencies.
Service Areas
We provide commercial hvac service across:
- San Jose
- Santa Clara
- Sunnyvale
- Cupertino
- Campbell
- Los Gatos
- Milpitas
- Mountain View
- Palo Alto
- Fremont
- Saratoga
- Gilroy
- Hayward
- Union City
- Newark
- Castro Valley
- San Leandro
- Pleasanton
- Dublin
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Commercial HVAC Service — FAQs
Ready to Schedule Your Service?
From repairs to full installations — our NATE-certified technicians are ready to keep your home comfortable. Book online or call us.