Contractor License Proof

Sandstone Engineering Inc

Licensed

Verified against CSLB on · View on CSLB

License details

License number
1111309
Status
Active
Classifications
A · General EngineeringB · General BuildingC-21 · Building Moving/DemolitionHAZ · Hazardous Substance Removal Certification
Contractor bond
$25,000
Workers' comp
Not covered
License term on file
October 12, 2023 – October 31, 2027

Business

  • (510) 334 7932 (CSLB public record)
  • 3140 ANDERSON LANE, Oakley, CA 94561Contra Costa County

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Frequently asked questions

Is Sandstone Engineering Inc licensed in California?

Yes. Sandstone Engineering Inc holds an active California state contractor license (CSLB #1111309), verified against the CSLB public record on August 4, 2026.

What is Sandstone Engineering Inc's CSLB license number?

Sandstone Engineering Inc's California contractor license number is 1111309. 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 Sandstone Engineering Inc licensed for?

Sandstone Engineering Inc is classified under General Engineering (A), General Building (B), Building Moving/Demolition (C-21), and Hazardous Substance Removal Certification (HAZ) by the CSLB.

How do I verify Sandstone Engineering Inc's license myself?

Look up license #1111309 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 August 4, 2026.

Verify it yourself: How to verify a California contractor license · Look up #1111309 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.