Von Stieff Frederick, C-46 Solar Contractor in Concord, CA
Von Stieff Frederick operating as a sole owner holds an active California contractor license (CSLB #1079483), valid through Aug 31, 2027. First issued in 2021, the license has been on the CSLB roster for 5 years. It carries a single CSLB classification: C-46 — Solar Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and an exempt workers' compensation status (no employees on payroll). The business is based in Concord, in Contra Costa County, California.
- License Number
- 1079483
- Issued
- Aug 10, 2021
- Status
- CLEAR
- Expires
- Aug 31, 2027
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100710543
- Effective
- Jan 2, 2023
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Aug 4, 2025
- Expires
- —
This contractor warrants a closer look before contracting:
- Workers' comp listed as exempt
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Von Stieff Frederick licensed in California?
Yes. Von Stieff Frederick holds California Contractors State License Board license number 1079483, which is active and in good standing. The license was first issued on August 10, 2021. It is valid through August 31, 2027.
What does Von Stieff Frederick specialize in?
Von Stieff Frederick is licensed for one CSLB classification: C-46 Solar Contractor.
Where is Von Stieff Frederick headquartered?
Von Stieff Frederick is headquartered at 4116 Kensington Ct, Concord, CA 94521, in Contra Costa County, California.
Does Von Stieff Frederick have an active surety bond on file with CSLB?
Yes. Von Stieff Frederick has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Von Stieff Frederick carry workers' compensation coverage?
Von Stieff Frederick reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Von Stieff Frederick's contractor license?
You can verify Von Stieff Frederick's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1079483.
- License issuedAug 10, 2021
- Bond activeJan 2, 2023
- WC coverage startsAug 4, 2025
- License expiresAug 31, 2027
- Freschi Air Systems LLC#1077999Concord·B General Building Contractor
- Volta HVAC#1073370San Ramon·C-10 Electrical Contractor
- Rowland Development & Contrucction#1054950Moraga·B General Building Contractor
- Homexperts INC#1053003Concord·B General Building Contractor
- Synergy 768 Electric LLC#1109123Brentwood·B General Building Contractor
- Joachim Services#1103315Martinez·B General Building Contractor
- Thriving Solar Solutions INC#1085628San Ramon·C-46 Solar Contractor
- Ecoterium Solar#1140982Walnut Creek·C-46 Solar Contractor
Working a California job with Von Stieff Frederick, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.
- California preliminary notice deadline calculatorFind your 20-day deadline and the lien rights at risk.
- Do I need a preliminary notice in California?Answer a few questions to see if the 20-day notice applies.
- Did I lose my California lien rights?Check whether your mechanics lien window has passed.
- Unpaid construction invoice in CaliforniaYour options and deadlines for collecting on a California job.
Own Von Stieff Frederick? Claim or correct this profile