Walsh Construction CO
Walsh Construction CO operating as a sole owner is licensed in California under CSLB number 637836. The license was first issued in 1992, putting the business at 34 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 Philadelphia Indemnity Insurance Company and an exempt workers' compensation status (no employees on payroll). The business is based in Alamo, in Contra Costa County, California.
- License Number
- 637836
- Issued
- Feb 12, 1992
- Status
- CLEAR
- Expires
- Feb 29, 2028
- Entity
- Sole Owner
- Surety
- Philadelphia Indemnity Insurance Company
- Bond Number
- PB10163408443
- Effective
- Feb 18, 2026
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Feb 12, 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 Walsh Construction CO licensed in California?
Yes. Walsh Construction CO holds California Contractors State License Board license number 637836. The license was first issued on February 12, 1992. It is valid through February 29, 2028.
What does Walsh Construction CO specialize in?
Walsh Construction CO is licensed for one CSLB classification: B General Building Contractor.
Where is Walsh Construction CO headquartered?
Walsh Construction CO is headquartered at 9 Bolla Avenue, Alamo, CA 94507, in Contra Costa County, California.
Does Walsh Construction CO have an active surety bond on file with CSLB?
Yes. Walsh Construction CO has an active California contractor surety bond filed with Philadelphia Indemnity Insurance Company.
Does Walsh Construction CO carry workers' compensation coverage?
Walsh Construction CO reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Walsh Construction CO's contractor license?
You can verify Walsh Construction CO's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=637836.
- License issuedFeb 12, 1992
- WC coverage startsFeb 12, 2026
- Bond activeFeb 18, 2026
- License expiresFeb 29, 2028
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