California contractor license
FREDERICK VON STIEFF
- C46 Solar
FREDERICK VON STIEFF is a C46 Solar contractor in Concord, Contra Costa County, licensed in California for 5 years (since 2021). As of Jan 8, 2026, the license is active with an expiration date of Aug 31, 2027 on record and a license bond is on file.
FREDERICK VON STIEFFC46 Solar · checked Jan 8, 2026
ActiveLicense number#1079483
Licensed sinceAug 10, 2021
Years licensed5 years
Expiration on recordAug 31, 2027
City and countyConcord, Contra Costa 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 8, 2026.