Contractor License Proof

Office of David Kolonay

Licensed

Verified against CSLB on · View on CSLB

License details

License number
657199
Status
Active
Classifications
B · General Building
Contractor bond
$25,000
Workers' comp
ExemptNo employees — not a red flag.
License term on file
October 26, 1992 – August 31, 2026

Business

  • (415) 235 5193 (CSLB public record)
  • 1421 SOUTH UNION STREET, Traverse City, MI 49684

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How to verify a California contractor licenseRed flags when hiring a contractorLicensed vs. bonded vs. insured — what's the difference?Risks of hiring an unlicensed contractor

Frequently asked questions

Is Office of David Kolonay licensed in California?

Yes. Office of David Kolonay holds an active California state contractor license (CSLB #657199), verified against the CSLB public record on June 17, 2026.

What is Office of David Kolonay's CSLB license number?

Office of David Kolonay's California contractor license number is 657199. 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 Office of David Kolonay licensed for?

Office of David Kolonay is classified under General Building (B) by the CSLB.

How do I verify Office of David Kolonay's license myself?

Look up license #657199 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 #657199 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.