A3 Mechanical Systems
Verified against CSLB on · View on CSLB
License details
- License number
- 1040289
- Status
- Active
- Classifications
- C-20 · Warm-Air Heating, Ventilating and Air-Conditioning
- Contractor bond
- $25,000
- Workers' comp
- Covered
- License term on file
- June 6, 2018 – June 30, 2026
Business
- (408) 639 8255 (CSLB public record)
- 7052 SANTA TERESA 165, San Jose, CA 95139Santa Clara County
Are you A3 Mechanical Systems? Claim this listing to manage it.
Claim this listingRequest a free quote
Tell us about your project and we'll connect you with licensed, verified California contractors.
Frequently asked questions
Is A3 Mechanical Systems licensed in California?
Yes. A3 Mechanical Systems holds an active California state contractor license (CSLB #1040289), verified against the CSLB public record on June 17, 2026.
What is A3 Mechanical Systems's CSLB license number?
A3 Mechanical Systems's California contractor license number is 1040289. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1040289
What kind of work is A3 Mechanical Systems licensed for?
A3 Mechanical Systems is classified under Warm-Air Heating, Ventilating and Air-Conditioning (C-20) by the CSLB.
How do I verify A3 Mechanical Systems's license myself?
Look up license #1040289 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1040289. This page reflects the CSLB public record as of June 17, 2026.
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.