Hammer Construction
Hammer Construction operating as a sole owner is licensed in California under CSLB number 1038397. The license was first issued in 2018, putting the business at 8 years on the active CSLB roster. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Nationwide Mutual Insurance Company and an exempt workers' compensation status (no employees on payroll). The business is based in Oakland, in Alameda County, California.
- License Number
- 1038397
- Issued
- Apr 20, 2018
- Status
- CLEAR
- Expires
- Apr 30, 2028
- Entity
- Sole Owner
- Surety
- Nationwide Mutual Insurance Company
- Bond Number
- 7901282422
- Effective
- Mar 28, 2026
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Mar 20, 2026
- 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 Hammer Construction licensed in California?
Yes. Hammer Construction holds California Contractors State License Board license number 1038397. The license was first issued on April 20, 2018. It is valid through April 30, 2028.
What does Hammer Construction specialize in?
Hammer Construction is licensed for one CSLB classification: B General Building Contractor.
Where is Hammer Construction headquartered?
Hammer Construction is headquartered at 3247 Grand Ave Apt 3a, Oakland, CA 94610, in Alameda County, California.
Does Hammer Construction have an active surety bond on file with CSLB?
Yes. Hammer Construction has an active California contractor surety bond filed with Nationwide Mutual Insurance Company.
Does Hammer Construction carry workers' compensation coverage?
Hammer Construction reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Hammer Construction's contractor license?
You can verify Hammer Construction's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1038397.
- License issuedApr 20, 2018
- WC coverage startsMar 20, 2026
- Bond activeMar 28, 2026
- License expiresApr 30, 2028
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