Roser D John Inc
Verified against CSLB on · View on CSLB
License details
- License number
- 506778
- Status
- Active
- Classifications
- A · General EngineeringASB · Asbestos CertificationB · General BuildingC-10 · ElectricalC-12 · Earthwork and PavingC-13 · FencingC-27 · LandscapingC-36 · PlumbingC-8 · Concrete
- Contractor bond
- $25,000
- Workers' comp
- Covered
- License term on file
- March 9, 1987 – March 31, 2027
Business
- (818) 706 2411 (CSLB public record)
- 31356 VIA COLINAS UNIT 111, Westlake Village, CA 91362Ventura County
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Frequently asked questions
Is Roser D John Inc licensed in California?
Yes. Roser D John Inc holds an active California state contractor license (CSLB #506778), verified against the CSLB public record on June 17, 2026.
What is Roser D John Inc's CSLB license number?
Roser D John Inc's California contractor license number is 506778. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=506778
What kind of work is Roser D John Inc licensed for?
Roser D John Inc is classified under General Engineering (A) by the CSLB.
How do I verify Roser D John Inc's license myself?
Look up license #506778 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=506778. 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.