Ziehlke Excavation
Ziehlke Excavation operating as a sole owner is licensed in California under CSLB number 1146299. The license was first issued in 2025, putting the business at 1 year on the active CSLB roster. It carries a single CSLB classification: C-12 — Earthwork and Paving Contractor. Records show an active surety bond on file with Western Surety Company and an exempt workers' compensation status (no employees on payroll). The business is based in Murphys, in Calaveras County, California.
- License Number
- 1146299
- Issued
- Nov 14, 2025
- Status
- CLEAR
- Expires
- Nov 30, 2027
- Entity
- Sole Owner
- Surety
- Western Surety Company
- Bond Number
- 67671240
- Effective
- Oct 24, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Oct 24, 2025
- Expires
- —
This contractor warrants a closer look before contracting:
- Workers' comp listed as exempt
- License issued less than 2 years ago
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Ziehlke Excavation licensed in California?
Yes. Ziehlke Excavation holds California Contractors State License Board license number 1146299. The license was first issued on November 14, 2025. It is valid through November 30, 2027.
What does Ziehlke Excavation specialize in?
Ziehlke Excavation is licensed for one CSLB classification: C-12 Earthwork and Paving Contractor.
Where is Ziehlke Excavation headquartered?
Ziehlke Excavation is headquartered at 1598 Wet Springs Road, Murphys, CA 95247, in Calaveras County, California.
Does Ziehlke Excavation have an active surety bond on file with CSLB?
Yes. Ziehlke Excavation has an active California contractor surety bond filed with Western Surety Company.
Does Ziehlke Excavation carry workers' compensation coverage?
Ziehlke Excavation reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Ziehlke Excavation's contractor license?
You can verify Ziehlke Excavation's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1146299.
- Bond activeOct 24, 2025
- WC coverage startsOct 24, 2025
- License issuedNov 14, 2025
- License expiresNov 30, 2027
- Asap Asphalt Sealing & Patching INC#1093742San Andreas·C-12 Earthwork and Paving Contractor
- Briski Well Drilling CO#237647San Andreas·C-12 Earthwork and Paving Contractor
- Hertzig John W#377783Mokelumne Hill·A General Engineering Contractor
- John Shandel Construction#513075Valley Springs·C-12 Earthwork and Paving Contractor
- K J M Enterprises#780610Copperopolis·C-12 Earthwork and Paving Contractor
- Anderson William R Construction#706379Valley Springs·B General Building Contractor
- Speyer James W#884569Copperopolis·C-12 Earthwork and Paving Contractor
- Lynch Martin Bf#850330Mokelumne Hill·A General Engineering Contractor