A-1 CONSTRUCTION & MANAGEMENT CO
This license is in good standing, but the workers’ compensation policy on file expired September 2026. If a worker is injured on your project without coverage, the liability can reach you as the homeowner. Ask for a current certificate of insurance before signing.
License
- Status
- CLEAR · WC Susp Pending
- First issued
- November 21, 1989
- Expires
- June 30, 2028
- Entity
- Sole Owner
- Address of record
- 510 E EL CAMINO REAL #70446, Sunnyvale, CA 94086
- Phone of record
- (408) 469 2628
Contractor bond
- Surety
- ATLANTIC SPECIALTY INSURANCE COMPANY
- Bond number
- 800250519
- Amount
- $25,000
- Effective
- March 10, 2026
Workers’ compensation
- Carrier
- AMERICAN CASUALTY COMPANY OF READING PA
- Policy number
- 8035630197
- Effective
- September 4, 2025
- Expires
- September 4, 2026lapsed
Are they licensed for your job?
A California contractor may only contract for work their classification covers. Pick the job and this reads the license on file against it.
Licensed to perform
A contractor may only contract for work within their classifications. See all 210 licensed general building contractors in Sunnyvale.
People on this license
| Name | Title | Since | Through |
|---|---|---|---|
| CHUNG KWANG ROCK | Sole Owner | November 21, 1989 | Current |
| CHUNG KWANG ROCK | Sole Owner | July 19, 2000 | January 1, 2004 |
Verified status badge
Put this on your website or in a bid packet. It reads the state’s record live every time someone loads it, so it is never a screenshot of a good day. Free, and you don’t need to claim this listing to use it.
<a href="https://bookofbuilders.com/license/581321" target="_blank" rel="noopener">
<img src="https://bookofbuilders.com/badge/581321.svg" alt="A-1 CONSTRUCTION & MANAGEMENT CO — California contractor license #581321 status, verified against CSLB records" width="268" height="76">
</a>The badge shows whatever the CSLB record says — including a suspension or lapsed coverage. There is no paid version and no way to change what it displays. That is what makes it worth showing. The same data as JSON if you’d rather build your own.
Is this your license?
Claim this page to add your photos, description, service area and contact details. The state’s record above stays exactly as it is — claiming adds to a page, it never edits or hides anything the CSLB reports.
Source: California Contractors State License Board public records. Coverage lapse is evaluated against today’s date; all other fields reflect the latest weekly CSLB file. Confirm at the CSLB’s official record before signing a contract.