Master Systems
Verified against CSLB on · View on CSLB
License details
- License number
- 489059
- Status
- Active
- Classifications
- C-7 · Low Voltage Systems
- Contractor bond
- $25,000
- Workers' comp
- Exempt
- License term on file
- March 31, 1986 – March 31, 2028
Business
- (619) 825 6132 (CSLB public record)
- 4803 JESSIE AVE, La Mesa, CA 91942San Diego County
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Frequently asked questions
Is Master Systems licensed in California?
Yes. Master Systems holds an active California state contractor license (CSLB #489059), verified against the CSLB public record on June 17, 2026.
What is Master Systems's CSLB license number?
Master Systems's California contractor license number is 489059. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=489059
What kind of work is Master Systems licensed for?
Master Systems is classified under Low Voltage Systems (C-7) by the CSLB.
How do I verify Master Systems's license myself?
Look up license #489059 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=489059. 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.