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Siers Construction

License #830470·Sole Owner·Sebastopol, Sonoma County
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Summary

Siers Construction operating as a sole owner is licensed in California under CSLB number 830470. The license was first issued in 2003, putting the business at 23 years on the active CSLB roster. It carries 2 CSLB classifications: B General Building Contractor and C-61/D-52 Window Coverings 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 Sebastopol, in Sonoma County, California.

Business Information
Address
5020 Hessel Rd
Sebastopol, CA 95472
License Details & Classifications
License Number
830470
Issued
Dec 31, 2003
Status
CLEAR
Expires
Dec 31, 2027
Entity
Sole Owner
Financial & Insurance Coverage
Contractor Bond
Surety
American Contractors Indemnity Company
Bond Number
100976929
Effective
Jul 10, 2025
Status
Active
Workers' Compensation
Coverage
Exempt
Carrier
—
Policy Number
—
Effective
Jan 15, 2026
Expires
—
Review

This contractor warrants a closer look before contracting:

  • Workers' comp listed as exempt
License StatusActive
Contractor BondOn file
Workers' CompensationActive

An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this

Frequently asked questions
Is Siers Construction licensed in California?

Yes. Siers Construction holds California Contractors State License Board license number 830470. The license was first issued on December 31, 2003. It is valid through December 31, 2027.

What does Siers Construction specialize in?

Siers Construction is licensed for 2 CSLB classifications: B General Building Contractor and C-61/D-52 Window Coverings Contractor.

Where is Siers Construction headquartered?

Siers Construction is headquartered at 5020 Hessel Rd, Sebastopol, CA 95472, in Sonoma County, California.

Does Siers Construction have an active surety bond on file with CSLB?

Yes. Siers Construction has an active California contractor surety bond filed with American Contractors Indemnity Company.

Does Siers Construction carry workers' compensation coverage?

Siers Construction reports an exempt workers' compensation status, meaning the business has no employees on payroll.

How do I verify Siers Construction's contractor license?

You can verify Siers Construction's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=830470.

Activity Timeline
  1. License issuedDec 31, 2003
  2. Bond activeJul 10, 2025
  3. WC coverage startsJan 15, 2026
  4. License expiresDec 31, 2027
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