Williams John C
Verified against CSLB on · View on CSLB
License details
- License number
- 544378
- Classifications
- License term on file
- October 15, 1988 – October 31, 2026
Business
- (209) 574 1090 (CSLB public record)
- P O BOX 4878, Modesto, CA 95352Stanislaus County
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What to check next
Frequently asked questions
Is Williams John C licensed in California?
Yes. Williams John C holds an active California state contractor license (CSLB #544378), verified against the CSLB public record on June 17, 2026.
What is Williams John C's CSLB license number?
Williams John C's California contractor license number is 544378. 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 Williams John C licensed for?
Williams John C is classified under General Building (B) by the CSLB.
How do I verify Williams John C's license myself?
Look up license #544378 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 #544378 on CSLB
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.