Kinstle John S

El Sobrante · Contra Costa County · CA

Verified

Bestopedia verdict

94 / 100 Bestopedia Trust Score

California’s contractor board lists Kinstle John S 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
27.2 / 30
License continuity
10 / 10
Workers' comp
9 / 12
Contractor bond
8 / 8

How the Trust Score is calculated →

The verified record

CSLB license
#333270 verify on CSLB ↗
Classifications
B
Years licensed
49.3 years since 03/17/1977
Contractor bond
$25,000 American Contractors Indemnity Company
Workers’ comp
Current
Business type
Sole Owner
Qualifying principal
John Steven Kinstle
Address of record
37 Holly Lane, El Sobrante, CA 948033315

Frequently Asked Questions

Is Kinstle John S a licensed General Contractor contractor in California?

Yes. Kinstle John S holds California CSLB contractor license #333270 with a B (General Building) classification. Current CSLB status: CLEAR (as of July 2026).

What work is Kinstle John S licensed to perform?

Kinstle John S is licensed for B (General Building).

Is Kinstle John S bonded?

Yes. Kinstle John S carries contractor's bond #SC571663 for $25,000 through American Contractors Indemnity Company.

Does Kinstle John S carry workers' compensation insurance?

CSLB records list the workers' compensation status for Kinstle John S as Exempt.

How long has Kinstle John S held its contractor license?

Kinstle John S has held California contractor license #333270 since 03/17/1977, approximately 49 years (as of July 2026).

Where is Kinstle John S located?

Kinstle John S is based in El Sobrante, Contra Costa County, CA 948033315.