PRESTON PIPELINES INC
California contractor license #367660 · Milpitas, Santa Clara County
License
- License number
- 367660
- Status
- Clear
- Classifications
- A General Engineering Contractor
- C-16 Fire Protection Contractor
- C-34 Pipeline Contractor
- C-42 Sanitation System Contractor
- HAZ Hazardous Substance Removal Certification
- Business type
- Corporation
- Issued
- Dec 21, 1978
- Expires
- Dec 31, 2026
- Workers' compensation
- Workers' Compensation Insurance — Zurich American Insurance Company
- Contractor's bond
- $25,000 — Safeco Insurance Company Of America
- DIR public works registration
- Registered through Jun 30, 2027
From the California Contractors State License Board (CSLB) public license file, last updated Oct 1, 2026. Verify license #367660 on CSLB's License Check.
California public works
PRESTON PIPELINES INC appears on 8 public works projects registered with the California Department of Industrial Relations, 2 of them as the prime contractor, for 6 awarding bodies between 2023 and 2026. Projects it led total $6,433,458 in reported contract value.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Jul 27, 2026 | Northwest Quadrant Redundant SteamOther | University of CA-Berkeley | Prime | $519,458 |
| May 22, 2026 | Clean Energy Campus - DistributionHVAC & mechanical | University of CA-Berkeley | Prime | $5,914,000 |
| Jun 4, 2025 | Pombo Elementary K-8Buildings & facilities | Lammersville Unified School District | Subcontractor | $60,946,404 |
| Apr 1, 2025 | Bancroft Parking StructureBuildings & facilities | University of CA-Berkeley | Subcontractor | $42,585,345 |
| Jun 20, 2024 | Terminal New Facility Landside ImprovemeBuildings & facilities | Monterey Peninsula Airport District | Subcontractor | $25,384,600 |
| May 21, 2024 | 11921.66- D/B For West Field UtilityPaving & streets | San Francisco International Airport Commission | Subcontractor | $12,000,000 |
| Feb 4, 2024 | Campbell Police Operations BuildingBuildings & facilities | City of Campbell | Subcontractor | — |
| Sep 22, 2023 | The Rise; Horizontal Work Phase IaDemolition & site work | Vallco Property Owner, LLC | Subcontractor | $45,000,000 |
Most recent 8 of 8. 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
- University of CA-Berkeley · 3 projects
- Vallco Property Owner, LLC · 1 project
- San Francisco International Airport Commission · 1 project
- Lammersville Unified School District · 1 project
- City of Campbell · 1 project
- Monterey Peninsula Airport District · 1 project
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