Chien Ming Chu Chen

Diamond Bar · Los Angeles County · CA

VERIFIED

Bestopedia verdict

96 / 100 Bestopedia Trust Score

California’s contractor board lists Chien Ming Chu Chen in CLEAR standing. A contractor bond is on file, and workers’ compensation coverage is current.

License standing
30 / 30
Years licensed
20 / 20
Contractor bond
20 / 20
Workers' comp
16 / 20
Business structure
10 / 10

How the Trust Score is calculated →

The verified record

CSLB license
#820540 verify on CSLB ↗
Classifications
B, C-10, C-36
Years licensed
23.1 years since 06/09/2003
Contractor bond
$25,000 HUDSON INSURANCE COMPANY
Workers’ comp
Current
Business type
Sole Owner
Qualifying principal
Ming-chu Chen Chien
Address of record
20803 Quail Run Drive, Diamond Bar, CA 91789

Frequently Asked Questions

Is Chien Ming Chu Chen a licensed Plumbing contractor in California?

Yes. Chien Ming Chu Chen holds California CSLB contractor license #820540 with a C-36 (Plumbing) classification. Current CSLB status: CLEAR.

What work is Chien Ming Chu Chen licensed to perform?

License #820540 carries C-36 (Plumbing), plus additional classifications: B, C10.

Is Chien Ming Chu Chen bonded?

Yes. Chien Ming Chu Chen carries contractor's bond #30133012 for $25,000 through HUDSON INSURANCE COMPANY.

Does Chien Ming Chu Chen carry workers' compensation insurance?

Workers' compensation status on file: Exempt.

How long has Chien Ming Chu Chen held its contractor license?

License #820540 was originally issued on 06/09/2003, approximately 23 years ago (as of July 2026).

Where is Chien Ming Chu Chen located?

Chien Ming Chu Chen is based in Diamond Bar, Los Angeles County, CA 91789.