John W Hertzig
John W Hertzig is an active, licensed contractor operating in Mokelumne Hill, CA. Operating under a California contractor license established in 1979. They hold 3 license classifications including A General Engineering Contractor, B General Building 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
- 377783
- Status
- Active
- Classification(s)
- A: General Engineering Contractor, B: General Building Contractor, C-12: Earthwork and Paving Contractor
- Tenure
- Licensed since 1979 (46 years)
- Issue Date
- July 02, 1979
- Expiration Date
- July 31, 2027
- Disciplinary Record
- No Disciplinary Actions
Bond & Insurance
- Contractor Bond
- Bonded ($25000) – WESTERN SURETY COMPANY
- Workers’ Compensation
- Workers' Compensation Insurance – STATE COMPENSATION INSURANCE FUND
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
- 9267 E HWY 26
- City
- Mokelumne Hill, CA
- ZIP Code
- 95245
- Phone
- (209) 286-1234
About These License Types
A: General Engineering Contractor
Authorizes construction of fixed works requiring specialized engineering knowledge and skill, including irrigation, drainage, water power, water supply, flood control, inland waterways, harbors, docks, shipyards, dams, hydroelectric projects, levees, railroads, highways, tunnels, airports, sewers, bridges, pipelines, parks, refineries, and power plants.
Not authorized: Does not authorize work under a Class B General Building Contractor license or any specialty (C) classification unless incidental to the engineering project.
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-12: Earthwork and Paving Contractor
Digs, moves, and places earth materials for cuts, fills, excavations, grades, trenches, backfills, and tunnels (if incidental), including use of explosives. Includes mixing, fabricating, and placing paving and surfacing materials.
Not authorized: Does not include operations on sources of water (see Class A).
Verify on Official CSLB Website
License data sourced from the California Contractors State License Board. Last data update: February 20, 2026.