AC Repair & Installation in San Jose
When your air conditioner fails in the middle of a Bay Area heat wave, you need a technician who can be at your door today — not next week. Therma Tech has provided same-day AC repair across San Jose for more than 18 years.
Licensed & Insured
CA #913806
NATE-Certified
Background-checked techs
4.9★ Rated
900+ verified reviews
18+ Years
Serving the Bay Area
Our NATE-certified technicians repair every major brand of central AC, ductless mini-split, and heat-pump cooling system. We diagnose the real problem the first time — no guesswork, no parts cannon, no surprise add-ons on the final invoice. The diagnostic is $149, and we waive it if you approve the repair.
Need a new air conditioner? We size and install high-efficiency systems matched to your home's square footage, ductwork, and energy goals. As a Carrier authorized dealer we offer factory warranties, manufacturer rebates, and financing available upon approval on qualifying installs.
We serve all of Santa Clara County including San Jose, Santa Clara, Sunnyvale, Cupertino, Campbell, Los Gatos, Milpitas, Mountain View, Palo Alto, Fremont, Saratoga, and Gilroy. Most repair calls are completed the same day you book.
Service Areas
We provide ac repair & installation 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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AC Repair & Installation — 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.