DUFFIN CONSTRUCTION

California contractor license #760636 · San Francisco, San Francisco County

License

License number
760636
Status
Clear
Classifications
  • B General Building Contractor
Business type
Sole Owner
Issued
Mar 19, 1999
Expires
Mar 31, 2027
Workers' compensation
Workers' Compensation Insurance — State Compensation Insurance Fund
Contractor's bond
$25,000 — Jet Insurance Company
DIR public works registration
Registered through Jun 30, 2027

From the California Contractors State License Board (CSLB) public license file, last updated Sep 11, 2026. Verify license #760636 on CSLB's License Check.

California public works

DUFFIN CONSTRUCTION appears on 21 public works projects registered with the California Department of Industrial Relations, 21 of them as the prime contractor, for 2 awarding bodies between 2024 and 2026. Projects it led total $2,218,862 in reported contract value.

Most recent public works projects
DateProjectAwarding bodyRoleContract amount
Sep 22, 2026MB RH SOM - DEAN'S OFFICE REFRESHDemolition & site workUCSF Real EstatePrime$81,267
Sep 15, 20262 NORTHPOINT SEISMIC AND TIElectrical, low voltage & AVUCSF Real EstatePrime$101,946
May 1, 2026FIN - OUTLYING, MCB, LARC BOILER, TCP ANWaterUCSF Real EstatePrime$386,150
Apr 7, 2026Rutter Center Exterior Entrance Paver RePaving & streetsUCSF Real EstatePrime$67,200
Mar 5, 2026Mt Sutro Native Plant Nursery -50 JohnstPaving & streetsUCSF Real EstatePrime$31,800
Jan 8, 2026MB WGVCV Updated Wayfinding RemediationBuildings & facilitiesUCSF Real EstatePrime$123,319
Jan 7, 2026PH ACC P1 ENT DecantFire & life safetyUCSF Real EstatePrime$83,855
Jan 6, 2026PH KORET 330 MINOR RENOElectrical, low voltage & AVUCSF Real EstatePrime$46,800
Dec 23, 2025FIN-PHTS HSIR Egress Path DeficienciesFire & life safetyUCSF Real EstatePrime$319,070
Nov 7, 2025GP9790-1100 Park Pl San Mateo Clinic AVHVAC & mechanicalUCSF Medical CenterPrime$27,600
Sep 4, 2025PH MSB 1268 Office RenovationBuildings & facilitiesUCSF Real EstatePrime$215,059
Aug 11, 2025TI - MU Roof Stairs ReplacementRoofingUCSF Real EstatePrime$68,520
Jul 30, 2025MB BH Room 204A X-Ray Irradiator ReplaceOtherUCSF Real EstatePrime$37,176
Jul 21, 2025PRJ-000181 2 Northpoint Seismic and TIPaving & streetsUCSF Real EstatePrime$73,200
Apr 23, 2025SOD, Floor 1, Room 1237Electrical, low voltage & AVUCSF Real EstatePrime$30,000
Mar 27, 2025RNEW - PHTS 50 MED CENTER CARPET AND PAIDemolition & site workUCSF Real EstatePrime$260,189
Mar 6, 2025TI – MB RUTTER TRANSPORTATION OFFICE MAKElectrical, low voltage & AVUCSF Real EstatePrime$103,353
Jan 22, 2025Parnassus Ave from Library to HillwayPaving & streetsUCSF Real EstatePrime$35,208
Dec 9, 2024Millberry Union Break Room Wall RepairConcrete & masonryUCSF Real EstatePrime$39,216
Oct 10, 2024Health Sciences West, 513 Parnassus AveOtherUCSF Real EstatePrime$33,264
Sep 24, 2024B26370 Duffin Contruction - CSB BasementPainting & flooringUCSF Real EstatePrime$54,670

Most recent 21 of 21. Contract amounts are the whole project's, as the awarding body reported them to DIR (reported since July 2024); a role is "Prime" when the awarding body registered the contractor on the project.

Awarding bodies it works for most

Is this your business?

Claim it on Atriam to add your work photos, service area and a booking link, and to run calls, leads, estimates and invoices in one place — free.

Claim this business