Duffy Construction LLC, B General Building Contractor in San Francisco, CA
Duffy Construction LLC operating as a limited liability holds an active California contractor license (CSLB #1136572), valid through Dec 31, 2027. First issued in 2025, the license has been on the CSLB roster for 1 year. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Merchants Bonding Company (mutual) and active workers' compensation coverage from State Compensation Insurance Fund. The business is based in San Francisco, in San Francisco County, California.
- License Number
- 1136572
- Issued
- Apr 24, 2025
- Status
- CLEAR
- Expires
- Dec 31, 2027
- Entity
- Limited Liability
- Surety
- Merchants Bonding Company (mutual)
- Bond Number
- 101708923
- Effective
- Dec 17, 2025
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- State Compensation Insurance Fund
- Policy Number
- 9395979
- Effective
- Feb 24, 2026
- Expires
- Feb 24, 2027
Recently licensed: the CSLB license is active and in good standing, issued within the last 2 years.
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Duffy Construction LLC licensed in California?
Yes. Duffy Construction LLC holds California Contractors State License Board license number 1136572, which is active and in good standing. The license was first issued on April 24, 2025. It is valid through December 31, 2027.
What does Duffy Construction LLC specialize in?
Duffy Construction LLC is licensed for one CSLB classification: B General Building Contractor.
Where is Duffy Construction LLC headquartered?
Duffy Construction LLC is headquartered at P O Box 170020, San Francisco, CA 941210020, in San Francisco County, California.
Does Duffy Construction LLC have an active surety bond on file with CSLB?
Yes. Duffy Construction LLC has an active California contractor surety bond filed with Merchants Bonding Company (mutual).
Does Duffy Construction LLC carry workers' compensation coverage?
Yes. Duffy Construction LLC carries active workers' compensation coverage through State Compensation Insurance Fund.
How do I verify Duffy Construction LLC's contractor license?
You can verify Duffy Construction LLC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1136572.
- License issuedApr 24, 2025
- Bond activeDec 17, 2025
- WC coverage startsFeb 24, 2026
- WC expiresFeb 24, 2027
- License expiresDec 31, 2027
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