Public CSLB records

Loniewski Greg, B General Building Contractor in Yosemite National Park, CA

License #951695·Sole Owner·Yosemite National Park, Mariposa County
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Summary

Loniewski Greg operating as a sole owner holds California contractor license #951695, which is currently expired (lapsed Aug 31, 2026) and not valid to contract until it is renewed. First issued in 2010, the license has been on the CSLB roster for 16 years. It carries a single CSLB classification: B — General Building 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 Yosemite National Park, in Mariposa County, California.

Business Information
Address
P O Box 661
Yosemite National Park, CA 95389
License Details & Classifications
License Number
951695
Issued
Aug 26, 2010
Status
CLEAR
Expires
Aug 31, 2026
Entity
Sole Owner
Financial & Insurance Coverage
Contractor Bond
Surety
Western Surety Company
Bond Number
67532657
Effective
Sep 8, 2025
Status
Active
Workers' Compensation
Coverage
Exempt
Carrier
Policy Number
Effective
Aug 9, 2024
Expires
Alert

This contractor has a compliance issue in its public CSLB record:

  • License expired
License StatusInactive / Expired
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 Loniewski Greg licensed in California?

Loniewski Greg previously held California Contractors State License Board license number 951695, but the license expired on August 31, 2026 and is not currently valid. It was first issued on August 26, 2010.

What does Loniewski Greg specialize in?

Loniewski Greg is licensed for one CSLB classification: B General Building Contractor.

Where is Loniewski Greg headquartered?

Loniewski Greg is headquartered at P O Box 661, Yosemite National Park, CA 95389, in Mariposa County, California.

Does Loniewski Greg have an active surety bond on file with CSLB?

Yes. Loniewski Greg has an active California contractor surety bond filed with Western Surety Company.

Does Loniewski Greg carry workers' compensation coverage?

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

How do I verify Loniewski Greg's contractor license?

You can verify Loniewski Greg's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=951695.

Activity Timeline
  1. License issuedAug 26, 2010
  2. WC coverage startsAug 9, 2024
  3. Bond activeSep 8, 2025
  4. License expiredAug 31, 2026
Other contractors in Mariposa County
California lien & payment resources

Working a California job with Loniewski Greg, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.

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