California contractor license
WILLIAM J HELMER GENERAL ENG CONTRACTOR INC
- A General Engineering
- B General Building
- C12 Earthwork And Paving
- C21 Building Moving, Demolition
- C29 Masonry
- C42 Sanitation System
- C-61 / D06 Concrete Related Services
- C-8 Concrete
WILLIAM J HELMER GENERAL ENG CONTRACTOR INC is a contractor with 8 license classifications, including A General Engineering and B General Building, in Barstow, San Bernardino County, licensed in California for 49 years (since 1976). As of Jan 23, 2026, the license is active with an expiration date of Dec 31, 2027 on record and a license bond is on file.
WILLIAM J HELMER GENERAL ENG CONTRACTOR INCA General Engineering · B General Building · C12 Earthwork And Paving · C21 Building Moving, Demolition · C29 Masonry · C42 Sanitation System · C-61 / D06 Concrete Related Services · C-8 Concrete · checked Jan 23, 2026
ActiveLicense number#329298
Licensed sinceDec 23, 1976
Years licensed49 years
Expiration on recordDec 31, 2027
City and countyBarstow, San Bernardino County
License bondOn file
ProjectsNone on file
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Source: California Contractors State License Board (CSLB) and City of Los Angeles permit records. Last updated Jan 23, 2026.