Public CSLB records

Knowlton Greg Construction, B General Building Contractor in Clearlake, CA

License #1066502·Sole Owner·Clearlake, Lake County
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Summary

Knowlton Greg Construction operating as a sole owner holds California contractor license #1066502, which is currently expired (lapsed Aug 31, 2026) and not valid to contract until it is renewed. First issued in 2020, the license has been on the CSLB roster for 6 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 Clearlake, in Lake County, California.

Business Information
Address
16465 Dam Road
Clearlake, CA 95422
License Details & Classifications
License Number
1066502
Issued
Jun 26, 2020
Status
CLEAR
Expires
Aug 31, 2026
Entity
Sole Owner
Financial & Insurance Coverage
Contractor Bond
Surety
Western Surety Company
Bond Number
67405472
Effective
Aug 2, 2025
Status
Active
Workers' Compensation
Coverage
Exempt
Carrier
Policy Number
Effective
Aug 12, 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 Knowlton Greg Construction licensed in California?

Knowlton Greg Construction previously held California Contractors State License Board license number 1066502, but the license expired on August 31, 2026 and is not currently valid. It was first issued on June 26, 2020.

What does Knowlton Greg Construction specialize in?

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

Where is Knowlton Greg Construction headquartered?

Knowlton Greg Construction is headquartered at 16465 Dam Road, Clearlake, CA 95422, in Lake County, California.

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

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

Does Knowlton Greg Construction carry workers' compensation coverage?

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

How do I verify Knowlton Greg Construction's contractor license?

You can verify Knowlton Greg Construction's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1066502.

Activity Timeline
  1. License issuedJun 26, 2020
  2. WC coverage startsAug 12, 2024
  3. Bond activeAug 2, 2025
  4. License expiredAug 31, 2026
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California lien & payment resources

Working a California job with Knowlton Greg Construction, 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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