Sum's Construction

Monte Sereno · Santa Clara County · CA

Verified

Bestopedia verdict

89 / 100 Bestopedia Trust Score

California’s contractor board lists Sum's Construction 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
18.7 / 30
License continuity
10 / 10
Workers' comp
12 / 12
Contractor bond
8 / 8

How the Trust Score is calculated →

The verified record

CSLB license
#818433 verify on CSLB ↗
Classifications
B
Years licensed
23.3 years since 03/28/2003
Contractor bond
$25,000 American Contractors Indemnity Company
Workers’ comp
Current State Compensation Insurance Fund
Business type
Sole Owner
Qualifying principal
Yat Leung Sum
Address of record
15791 Winchester Blvd, Monte Sereno, CA 95030

Frequently Asked Questions

Is Sum's Construction a licensed General Contractor contractor in California?

Yes. Sum's Construction holds California CSLB contractor license #818433 with a B (General Building) classification. Current CSLB status: CLEAR (as of July 2026).

What work is Sum's Construction licensed to perform?

Sum's Construction is licensed for B (General Building).

Is Sum's Construction bonded?

Yes. Sum's Construction carries contractor's bond #100373448 for $25,000 through American Contractors Indemnity Company.

Does Sum's Construction carry workers' compensation insurance?

Yes. Sum's Construction has workers' compensation insurance on file with State Compensation Insurance Fund, with a policy expiration of 08/18/2026.

How long has Sum's Construction held its contractor license?

Sum's Construction has held California contractor license #818433 since 03/28/2003, approximately 23 years (as of July 2026).

Where is Sum's Construction located?

Sum's Construction is based in Monte Sereno, Santa Clara County, CA 95030.