Contractor License Proof

Wu Chung Chieh

Licensed

Verified against CSLB on · View on CSLB

License details

License number
1105504
Status
Active
Classifications
C-20 · Warm-Air Heating, Ventilating and Air-Conditioning
Contractor bond
$25,000
Workers' comp
Covered
License term on file
June 4, 2023 – June 30, 2027

Business

  • (626) 238 9331 (CSLB public record)
  • 1721 S DIAMOND BAR BLVD #A, Diamond Bar, CA 91765Los Angeles County

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Frequently asked questions

Is Wu Chung Chieh licensed in California?

Yes. Wu Chung Chieh holds an active California state contractor license (CSLB #1105504), verified against the CSLB public record on June 17, 2026.

What is Wu Chung Chieh's CSLB license number?

Wu Chung Chieh's California contractor license number is 1105504. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1105504

What kind of work is Wu Chung Chieh licensed for?

Wu Chung Chieh is classified under Warm-Air Heating, Ventilating and Air-Conditioning (C-20) by the CSLB.

How do I verify Wu Chung Chieh's license myself?

Look up license #1105504 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1105504. 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.