Gronau Construction
Gronau Construction operating as a sole owner is licensed in California under CSLB number 906691. The license was first issued in 2007, putting the business at 19 years on the active CSLB roster. It carries a single CSLB classification: B — General Building 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 Rail Road Flat, in Calaveras County, California.
- License Number
- 906691
- Issued
- Nov 16, 2007
- Status
- CLEAR
- Expires
- Nov 30, 2027
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100035317
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Nov 18, 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 Gronau Construction licensed in California?
Yes. Gronau Construction holds California Contractors State License Board license number 906691. The license was first issued on November 16, 2007. It is valid through November 30, 2027.
What does Gronau Construction specialize in?
Gronau Construction is licensed for one CSLB classification: B General Building Contractor.
Where is Gronau Construction headquartered?
Gronau Construction is headquartered at P O Box 299, Rail Road Flat, CA 95248, in Calaveras County, California.
Does Gronau Construction have an active surety bond on file with CSLB?
Yes. Gronau Construction has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Gronau Construction carry workers' compensation coverage?
Gronau Construction reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Gronau Construction's contractor license?
You can verify Gronau Construction's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=906691.
- License issuedNov 16, 2007
- Bond activeJan 1, 2023
- WC coverage startsNov 18, 2025
- License expiresNov 30, 2027
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