Contractor License Proof

Harmon Plumbing

Licensed

Verified against CSLB on · View on CSLB

License details

License number
420539
Status
Active
Classifications
C-36 · Plumbing
Contractor bond
$25,000
Workers' comp
Exempt
License term on file
March 30, 1982 – November 30, 2026

Business

  • (562) 943 4399 (CSLB public record)
  • 2500 BRASS LANTERN DRIVE, La Habra, CA 90631Orange County

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Frequently asked questions

Is Harmon Plumbing licensed in California?

Yes. Harmon Plumbing holds an active California state contractor license (CSLB #420539), verified against the CSLB public record on June 17, 2026.

What is Harmon Plumbing's CSLB license number?

Harmon Plumbing's California contractor license number is 420539. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=420539

What kind of work is Harmon Plumbing licensed for?

Harmon Plumbing is classified under Plumbing (C-36) by the CSLB.

How do I verify Harmon Plumbing's license myself?

Look up license #420539 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=420539. 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.