Sumsom Construction Co

Rowland Heights · Los Angeles County · CA

Verified

Bestopedia verdict

87 / 100 Bestopedia Trust Score

California’s contractor board lists Sumsom Construction Co with a license standing of CLEAR. A contractor bond is on file, and workers’ compensation coverage is current.

License standing
25 / 25
Clean record
15 / 15
Track record
24.7 / 30
License continuity
5 / 10
Workers' comp
9 / 12
Contractor bond
8 / 8

How the Trust Score is calculated →

The verified record

CSLB license
#483453 verify on CSLB ↗
Classifications
B
Years licensed
40.6 years since 11/27/1985
Contractor bond
$25,000 Merchants Bonding Company (Mutual)
Workers’ comp
Current
Business type
Corporation
Qualifying principal
Chi-ping Chao
Address of record
2144 Arcdale Ave, Rowland Heights, CA 91748

Frequently Asked Questions

Is Sumsom Construction Co a licensed General Contractor contractor in California?

Yes. Sumsom Construction Co holds California CSLB contractor license #483453 with a B (General Building) classification. Current CSLB status: CLEAR (as of July 2026).

What work is Sumsom Construction Co licensed to perform?

Sumsom Construction Co is licensed for B (General Building).

Is Sumsom Construction Co bonded?

Yes. Sumsom Construction Co carries contractor's bond #101543522 for $25,000 through Merchants Bonding Company (Mutual).

Does Sumsom Construction Co carry workers' compensation insurance?

CSLB records list the workers' compensation status for Sumsom Construction Co as Exempt.

How long has Sumsom Construction Co held its contractor license?

Sumsom Construction Co has held California contractor license #483453 since 11/27/1985, approximately 41 years (as of July 2026).

Where is Sumsom Construction Co located?

Sumsom Construction Co is based in Rowland Heights, Los Angeles County, CA 91748.