Costner Construction, B General Building Contractor in Grenada, CA
Costner Construction operating as a sole owner holds an active California contractor license (CSLB #1109112), valid through Aug 31, 2027. First issued in 2023, the license has been on the CSLB roster for 3 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with North River Insurance Company (the) and an exempt workers' compensation status (no employees on payroll). The business is based in Grenada, in Siskiyou County, California.
- License Number
- 1109112
- Issued
- Aug 22, 2023
- Status
- CLEAR
- Expires
- Aug 31, 2027
- Entity
- Sole Owner
- Surety
- North River Insurance Company (the)
- Bond Number
- 04CF628387
- Effective
- Aug 9, 2024
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Jul 11, 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 Costner Construction licensed in California?
Yes. Costner Construction holds California Contractors State License Board license number 1109112, which is active and in good standing. The license was first issued on August 22, 2023. It is valid through August 31, 2027.
What does Costner Construction specialize in?
Costner Construction is licensed for one CSLB classification: B General Building Contractor.
Where is Costner Construction headquartered?
Costner Construction is headquartered at Po Box 27, Grenada, CA 96038, in Siskiyou County, California.
Does Costner Construction have an active surety bond on file with CSLB?
Yes. Costner Construction has an active California contractor surety bond filed with North River Insurance Company (the).
Does Costner Construction carry workers' compensation coverage?
Costner Construction reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Costner Construction's contractor license?
You can verify Costner Construction's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1109112.
- License issuedAug 22, 2023
- Bond activeAug 9, 2024
- WC coverage startsJul 11, 2025
- License expiresAug 31, 2027
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