DUFFY CONSTRUCTION LLC
License
- Status
- CLEAR
- First issued
- April 24, 2025
- Reissued
- December 17, 2025
- Expires
- December 31, 2027
- Entity
- Limited Liability
- Address of record
- P O BOX 170020, San Francisco, CA 941210020
- Phone of record
- (415) 529 0346
Contractor bond
- Surety
- MERCHANTS BONDING COMPANY (MUTUAL)
- Bond number
- 101708923
- Amount
- $25,000
- Effective
- December 17, 2025
Workers’ compensation
- Carrier
- STATE COMPENSATION INSURANCE FUND
- Policy number
- 9395979
- Effective
- February 24, 2026
- Expires
- February 24, 2027
Are they licensed for your job?
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Licensed to perform
A contractor may only contract for work within their classifications. See all 2,238 licensed general building contractors in San Francisco.
People on this license
| Name | Title | Since | Through |
|---|---|---|---|
| DUFFY MICHAEL WILLIAM | Responsible Managing Manager | December 17, 2025 | Current |
| DUFFY MICHAEL WILLIAM | Sole Owner | April 24, 2025 | December 17, 2025 |
Verified status badge
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Source: California Contractors State License Board public records. Coverage lapse is evaluated against today’s date; all other fields reflect the latest weekly CSLB file. Confirm at the CSLB’s official record before signing a contract.