JAHN BUILDERS
California contractor license #726334 · San Jose, Santa Clara County
License
- License number
- 726334
- Status
- Clear
- Classifications
- B General Building Contractor
- C-10 Electrical Contractor
- C-36 Plumbing Contractor
- Business type
- Corporation
- Issued
- Aug 15, 1996
- Expires
- Apr 30, 2028
- Workers' compensation
- Workers' Compensation Insurance — Wesco Insurance Company
- Contractor's bond
- $25,000 — Western Surety Company
- DIR public works registration
- Registered through Jun 30, 2028
From the California Contractors State License Board (CSLB) public license file, last updated Apr 29, 2026. Verify license #726334 on CSLB's License Check.
California public works
JAHN BUILDERS appears on 36 public works projects registered with the California Department of Industrial Relations, 25 of them as the prime contractor, for 16 awarding bodies between 2024 and 2026. Projects it led total $2,710,521 in reported contract value.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Jul 16, 2026 | Boring sleeves Leigh HSBuildings & facilities | Campbell Union High School District | Prime | $35,700 |
| May 28, 2026 | Bottle Filler and Fountain InstallationBridges & structures | franklin-mckinley school district | Prime | $59,500 |
| Apr 15, 2026 | Pod Wall Reconfiguration Majestic WayOther | Berryessa Union School District | Prime | $39,400 |
| Mar 19, 2026 | 26-015: Storm & Waste Water CleanoutStorm drain & flood control | Sequoia Union High School District | Subcontractor | $88,911 |
| Dec 18, 2025 | Shirakawa, Hollow Metal Doors & FramePainting & flooring | franklin-mckinley school district | Prime | $39,170 |
| Dec 15, 2025 | Jahn Plumbing Inc.Plumbing & restrooms | Haywad Unified School District | Prime | $29,302 |
| Nov 20, 2025 | LHS golf carportBuildings & facilities | Campbell Union High School District | Prime | $64,250 |
| Sep 22, 2025 | SJUSD-Leland Pool pump replacementParks, landscape & fields | San Jose Unified School District | Prime | $31,293 |
| Sep 18, 2025 | Food Storage Shed DMBuildings & facilities | Campbell Union High School District | Prime | $63,772 |
| Aug 11, 2025 | Leland HS Remove/Replace 2 pumps 5 floatOther | San Jose Unified School District | Subcontractor | $49,227 |
| Jul 8, 2025 | BPO PLUMBING SERVICES JAHN, INC.Plumbing & restrooms | San Jose Unified School District | Prime | $74,900 |
| Jul 1, 2025 | SIDING AND SEWER REPAIRSewer & wastewater | Haywad Unified School District | Prime | $74,500 |
| Jun 10, 2025 | PR 918452Paving & streets | Milpitas Unified School District | Prime | $43,000 |
| May 27, 2025 | Sewer Lift stationSewer & wastewater | Linden Unified School District | Prime | $49,984 |
| Apr 24, 2025 | WATER HEATERPlumbing & restrooms | Oak Grove School District | Prime | $17,762 |
| Apr 18, 2025 | LHS kitchen improvementsOther | Campbell Union High School District | Prime | $28,540 |
| Apr 16, 2025 | Elmhurst Building Repairs Post Mold RemePainting & flooring | Hayward USD | Prime | $69,360 |
| Apr 14, 2025 | Sunnyvale Hydration ProjectBuildings & facilities | Sunnyvale School District | Prime | $233,993 |
| Dec 20, 2024 | Storm Drain WHS kitchenStorm drain & flood control | Campbell Union High School District | Subcontractor | $34,420 |
| Nov 21, 2024 | Mt. Pleasant ES TK Restrooms & Fire HydrWater | Mt. Pleasant Elementary School District | Subcontractor | $426,282 |
| Nov 1, 2024 | Re-constructionBuildings & facilities | Oak Grove School District | Prime | $69,924 |
| Aug 28, 2024 | Sylvandale Hollow Metal Door ReplacmentBuildings & facilities | franklin-mckinley school district | Prime | $59,690 |
| Jul 1, 2024 | Leigh HS locker projectOther | Campbell Union High School District | Subcontractor | — |
| Jul 1, 2024 | General Maintenance/Emergency 24-25Plumbing & restrooms | franklin-mckinley school district | Prime | $109,300 |
| Jun 28, 2024 | Irrigation RepairParks, landscape & fields | Milpitas Unified School District | Prime | $25,620 |
Most recent 25 of 36. 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
- Campbell Union High School District · 6 projects
- Oak Grove School District · 5 projects
- franklin-mckinley school district · 4 projects
- Mt. Pleasant Elementary School District · 3 projects
- San Jose Unified School District · 3 projects
- Milpitas Unified School District · 2 projects
- Haywad Unified School District · 2 projects
- Berryessa Union School District · 2 projects
- Linden Unified School District · 2 projects
- Hayward USD · 1 project
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