Werthwein John D
Verified against CSLB on · View on CSLB
License details
- License number
- 515135
- Classifications
- License term on file
- July 27, 1987 – March 31, 2027
Business
- (626) 233 4179 (CSLB public record)
- P O BOX 910, Sierra Madre, CA 91025Los Angeles County
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Frequently asked questions
Is Werthwein John D licensed in California?
Yes. Werthwein John D holds an active California state contractor license (CSLB #515135), verified against the CSLB public record on June 17, 2026.
What is Werthwein John D's CSLB license number?
Werthwein John D's California contractor license number is 515135. Look that number up with the CSLB "Check a License" tool to confirm its current status against the public record yourself.
What kind of work is Werthwein John D licensed for?
Werthwein John D is classified under Concrete (C-8) by the CSLB.
How do I verify Werthwein John D's license myself?
Look up license #515135 with the CSLB "Check a License" tool and compare the status, bond, and workers' compensation details against what's shown on this page. This page reflects the CSLB public record as of June 17, 2026.
Verify it yourself: How to verify a California contractor license · Look up #515135 on CSLB
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.