William Cook Plumbing & Construction Incorporated
William Cook Plumbing & Construction Incorporated is an active, licensed contractor operating in Patterson, CA. Operating under a California contractor license established in 2016. They hold 3 license classifications including B General Building Contractor, C-36 Plumbing Contractor, and 1 others. They currently maintain an active contractor bond and workers' compensation insurance. No disciplinary actions have been recorded against this license.
License Information
- License Number
- 1020317
- Status
- Active
- Classification(s)
- B: General Building Contractor, C-36: Plumbing Contractor, C-42: Sanitation System Contractor
- Tenure
- Licensed since 2016 (9 years)
- Issue Date
- November 04, 2016
- Expiration Date
- November 30, 2026
- Disciplinary Record
- No Disciplinary Actions
Bond & Insurance
- Contractor Bond
- Bonded ($25000) – AMERICAN CONTRACTORS INDEMNITY COMPANY
- Workers’ Compensation
- Workers' Compensation Insurance – EMPLOYERS PREFERRED INSURANCE COMPANY
A contractor’s bond protects consumers up to the bond amount if the contractor fails to fulfill contractual obligations or violates CSLB regulations.
Workers’ compensation insurance protects homeowners from liability if a contractor’s employee is injured on the job site.
Location
- Address
- 1428 ANGUS ST
- City
- Patterson, CA
- ZIP Code
- 95363
- Phone
- (925) 980-2141
About These License Types
B: General Building Contractor
Authorizes construction of structures including residential, commercial, and industrial buildings requiring at least two unrelated building trades or crafts. May take prime contracts or subcontracts for framing or carpentry. May subcontract all specialty work but must hold the appropriate C license to self-perform specialty trade work.
Not authorized: Cannot self-perform specialty trade work (electrical, plumbing, HVAC, etc.) without holding the corresponding C license. Cannot contract for C-16 Fire Protection or C-57 Well Drilling without the appropriate license or subcontractor.
C-36: Plumbing Contractor
Provides means for a supply of safe water and proper disposal of fluid waste, including piping, storage tanks, venting, gas appliances and connections, water and gas piping, water heating equipment including solar, and health and safety devices such as backflow preventers and gas earthquake valves.
Not authorized: Does not include forced warm-air units (see C-20).
C-42: Sanitation System Contractor
Fabricates and installs cesspools, septic tanks, storm drains, and other sewage disposal and drain structures, including cast iron, steel, concrete, and vitreous pipe.
Verify on Official CSLB Website
License data sourced from the California Contractors State License Board. Last data update: February 20, 2026.