✓ Powered by Official State Licensing Board Data

License is active

Source: Contractors State License Board (CSLB)

Expires in 4 months — verify renewal before long contracts

Licensed

Current and in good standing

Bonded

$25,000 surety bond

Insured

Workers' comp coverage on file

Clean record

No complaints or disciplinary actions

🛡️

Hiring this contractor?

Get alerts if their license status changes.

🏢

Is this your business?

Claim your profile to manage your listing.

ROCKRIDGE BUILDERS

License Number
324919
State
California
Status
active
Business Type
Sole Owner
Address
1730 TENTH AVENUE OAKLAND, CA, 94606 Alameda County
Phone
(510) 535 1682

License Dates

Issued

09/10/1976

Expires

07/31/2026

Expires in 4 months — verify renewal before long contracts

CSLB Last Updated

03/13/2026

License Classifications

B General Building Contractor

Personnel & Officers

HINKAMP WILLIAM PAUL

Sole Owner

HIC
Active

Contractor Bond

Bonded

Amount: $25,000

Company: AMERICAN CONTRACTORS INDEMNITY COMPANY

Bond #SC6050964

Effective: 01/01/2023

Workers' Compensation

Has policy

Carrier: EVEREST PREMIER INSURANCE COMPANY

Policy #7600021389261

Effective: 03/10/2026

Expires: 03/10/2027

CSLB designation: Workers' Compensation Insurance

Complaints & Disciplinary History

No disciplinary actions on file

This reflects CSLB's bulk license data. For detailed complaint history including pending investigations, check the official CSLB record.

Building Permits

Source: LA City Open Data (LADBS)

otc alterations permit

2519 Harrison St, 94110

to obtain final inspection for work approved under pa#201803194057 & 201803083162. all work is complete.

$1

2023-06-13

complete

otc alterations permit

2519 Harrison St, 94110

to obtain final inspection for work approved under pa#201910083809 & 201807114257. all work is complete.

$1

2023-06-13

complete

otc alterations permit

2519 Harrison St, 94110

new roof deck, skylights, and stairs from 3rd floor to the roof.

$50,000

2021-06-16

complete

otc alterations permit

2519 Harrison St, 94110

resubmiting structural drawing rev only: new rear patio (including retaining wall),(n) reinf. conc.gr bm at line 6-5;slab-on-grade infills and all new structural framing & lateral force resisting elem

$1

2021-06-16

complete

additions alterations or repairs

2519 Harrison St, 94110

to abate the notice of violation #32018-001519enf and dbi complaints #201835291 and #201837021 for work done out of scope under bpas #201709279764 and #20180118782. the proposed project includes a one

$625,000

2019-08-08

complete

otc alterations permit

725 Grant Av, 94108

revision to 201705035528: installation of 8 panel sliding door system at banquet dining room. structural work to include new beams and post to support doors. maher na

$45,000

2018-01-26

complete

Verify this record on the official state licensing board

View on Contractors State License Board (CSLB) →

Learn how to verify contractor licenses in California

California licensing guide →

Data sourced from official state licensing board records. Always confirm critical information directly with the state board.

Verify Another Contractor