Siemonsma Const
Verified against CSLB on · View on CSLB
License details
- License number
- 536498
- Status
- Active
- Classifications
- B · General Building
- Contractor bond
- $25,000
- Workers' comp
- Covered
- License term on file
- July 28, 1988 – July 31, 2028
Business
- (949) 289 3863 (CSLB public record)
- 1048 IRVINE AVENUE SUITE 430, Newport Beach, CA 92660Orange County
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Frequently asked questions
Is Siemonsma Const licensed in California?
Yes. Siemonsma Const holds an active California state contractor license (CSLB #536498), verified against the CSLB public record on June 17, 2026.
What is Siemonsma Const's CSLB license number?
Siemonsma Const's California contractor license number is 536498. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=536498
What kind of work is Siemonsma Const licensed for?
Siemonsma Const is classified under General Building (B) by the CSLB.
How do I verify Siemonsma Const's license myself?
Look up license #536498 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=536498. 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.