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William Cook Plumbing & Construction Incorporated: CSLB License #1020317
Source: CSLB public data · Updated November 1, 2026 · CSLB's record
- License expires within 60 days (2026-11-30)
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The license is active with no suspension on record, though classifications, bonds and secondary flags still deserve a look.
License details
- License number
- 1020317
- Primary status
- CLEAR · what this means
- Business type
- Corporation
- Issued
- November 4, 2016 (10 years)
- Reissued
- November 22, 2024
- Expires
- November 30, 2026
- Inactivated
- November 4, 2016
- Reactivated
- December 1, 2018
- Classifications
- B General Building Contractor
C-36 Plumbing Contractor
C-42 Sanitation System Contractor - Mailing address
- 1428 Angus St, Patterson, CA, 95363
- Phone
- (925) 980-2141
Workers' compensation
- Type
- Workers' Compensation Insurance
- Insurer
- Employers Preferred Insurance Company
- Policy number
- EIG500073504
- Effective
- May 27, 2026
- Expires
- May 27, 2027
Confirm coverage with CSLB's insurer search. How to check workers' comp.
Contractor's bond
- Surety
- American Contractors Indemnity Company
- Bond number
- 100908609
- Amount
- $25,000
- Effective
- November 22, 2024
Bond of qualifying individual
CSLB's public file lists no qualifier bond for this license. One isn't required when the qualifier owns at least 10% of the business, and some qualifier bonds appear only on CSLB's record.
Status history
No changes recorded since we began tracking this license on November 1, 2026. We compare every weekly CSLB file and log changes to status, bonds, workers' comp and classifications here.
Related
- Licensed general contractors in Patterson
- Contractors in Stanislaus County
- What "CLEAR" means
- How to check a contractor license
Data: CSLB Public Data Portal, file dated November 1, 2026. Status can change at any time. Verify on CSLB's Instant License Check. This site is not a consumer reporting agency under the FCRA; don't use it for employment, credit, insurance or housing decisions about an individual.