Contractor License Proof

National Construction Company Inc

Licensed

Verified against CSLB on · View on CSLB

License details

License number
517533
Status
Active
Classifications
B · General BuildingC-10 · ElectricalC-20 · Warm-Air Heating, Ventilating and Air-ConditioningC-36 · PlumbingC-46 · Solar
Contractor bond
$25,000
Workers' comp
Covered
License term on file
September 11, 1987 – September 30, 2026

Business

  • (510) 812 8292 (CSLB public record)
  • P O BOX 1472, El Cerrito, CA 94530Contra Costa County

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Frequently asked questions

Is National Construction Company Inc licensed in California?

Yes. National Construction Company Inc holds an active California state contractor license (CSLB #517533), verified against the CSLB public record on June 17, 2026.

What is National Construction Company Inc's CSLB license number?

National Construction Company Inc's California contractor license number is 517533. 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 National Construction Company Inc licensed for?

National Construction Company Inc is classified under General Building (B), Electrical (C-10), Warm-Air Heating, Ventilating and Air-Conditioning (C-20), Plumbing (C-36), and Solar (C-46) by the CSLB.

How do I verify National Construction Company Inc's license myself?

Look up license #517533 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 #517533 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.