William Bonadiman

Licensed

Verified against CSLB on September 28, 2026 · View on CSLB

License details

License number: 999447
Status: Active
Classifications: A · General Engineering
Contractor bond: $25,000
Workers' comp: ExemptNo employees — not a red flag.
License term on file: December 19, 2014 – September 30, 2027

Business

(909) 224 4843 (CSLB public record)
2141 MENTONE BLVD, Mentone, CA 92359San Bernardino County

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Frequently asked questions

Is William Bonadiman licensed in California?

Yes. William Bonadiman holds an active California state contractor license (CSLB #999447), verified against the CSLB public record on September 28, 2026.

What is William Bonadiman's CSLB license number?

William Bonadiman's California contractor license number is 999447. 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 William Bonadiman licensed for?

William Bonadiman is classified under General Engineering (A) by the CSLB.

How do I verify William Bonadiman's license myself?

Look up license #999447 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 September 28, 2026.

Verify it yourself: How to verify a California contractor license · Look up #999447 on CSLB

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See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.