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Electrical contractorDiamond Bar, CA

Chien Ming Chu Chen

Licensed since 2003 · Sole Owner · No building permits on record yet

CSLB #820540 · ActiveWorkers' comp exempt — no employees reportedBonded $25,000
License classes
B General BuildingC-10 ElectricalC-36 Plumbing

License, bond & insurance

California Contractors State License Board
  • CSLB license#820540 · Active
  • Business typeSole Owner
  • Issued · expiresJun 9, 2003 · Jun 30, 2027
  • OfficeDiamond Bar, CA 91789
  • CSLB record updatedSep 30, 2026
  • Contractor bond$25,000 · since Sep 1, 2026
  • Bond companyAtlantic Specialty Insurance Company
  • Workers' compensationExempt

License classes

B General BuildingC-10 ElectricalC-36 Plumbing
Always confirm a license on cslb.ca.gov before signingCheck another license

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Questions & answers

Is Chien Ming Chu Chen licensed?
CSLB license #820540 is active, issued Jun 9, 2003 and valid through Jun 30, 2027, with classes B, C-10, C-36.
Is Chien Ming Chu Chen insured and bonded?
CSLB lists a $25,000 contractor bond with Atlantic Specialty Insurance Company.

Sources

  1. Contractors State License Board — license, bond and workers' comp records (Sep 30, 2026).
Answers use only the facts on this pageIs this your business? Update listing