DOWDLE & SONS MECHANICAL INC
California contractor license #542743 · American Canyon, Napa County
License
- License number
- 542743
- Status
- Clear
- Classifications
- A General Engineering Contractor
- B General Building Contractor
- C-4 Boiler, Hot-Water Heating and Steam Fitting Contractor
- C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor
- C-36 Plumbing Contractor
- Business type
- Corporation
- Issued
- Sep 29, 1988
- Expires
- Sep 30, 2027
- Workers' compensation
- Workers' Compensation Insurance — Security National Insurance Company
- Contractor's bond
- $25,000 — Ohio Casualty Insurance Company (The)
- DIR public works registration
- Registered through Jun 30, 2029
From the California Contractors State License Board (CSLB) public license file, last updated Sep 30, 2026. Verify license #542743 on CSLB's License Check.
California public works
DOWDLE & SONS MECHANICAL INC appears on 23 public works projects registered with the California Department of Industrial Relations, 4 of them as the prime contractor, for 18 awarding bodies between 2020 and 2026. Projects it led total $19,991,550 in reported contract value.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Apr 29, 2026 | School Exterior Painting for 3 sitesPainting & flooring | Pacifica School District | Subcontractor | $316,900 |
| Apr 15, 2026 | HYDRONIC SYSTEM MODERNIZATIONBuildings & facilities | Solano Community College District | Prime | $9,622,700 |
| Feb 26, 2026 | Aragon High School Boiler ReplacementHVAC & mechanical | San Mateo Union High School District | Prime | $9,950 |
| Oct 21, 2025 | CCRMC Chiller Replacement ProjectHVAC & mechanical | Contra Costa County Public Works Department | Prime | $5,907,000 |
| Aug 27, 2025 | Central Kitchen ModernizationBuildings & facilities | West Contra Costa Unified School District | Subcontractor | $14,390,000 |
| Jun 17, 2025 | Alt EdBuildings & facilities | Fort Bragg Unified School District | Subcontractor | $14,315,372 |
| Mar 31, 2025 | Smith&Statler Wing HVAC Upgrade ReplaceHVAC & mechanical | San Francisco Community College District | Prime | $4,451,900 |
| Mar 19, 2025 | Deer Valley HS Cooling Tower ReplacementHVAC & mechanical | Antioch Unified School District | Subcontractor | $2,047,000 |
| Aug 7, 2024 | Antioch HS Gym HVAC ProjectRoofing | Antioch Unified School District | Subcontractor | $3,449,412 |
| Jul 12, 2024 | Rosenberg Library Boiler Chiller RepHVAC & mechanical | San Francisco Community College District | Subcontractor | $3,317,000 |
| Jun 10, 2024 | Redwood TK Classrooms/AdminBuildings & facilities | Fort Bragg Unified School District | Subcontractor | — |
| Apr 15, 2024 | Orange Memorial Park Aquatic CenterParks, landscape & fields | City of South San Francisco | Subcontractor | — |
| Jan 15, 2024 | CCRMC Cooling Tower Replacement ProjectHVAC & mechanical | Contra Costa County Public Works Department | Subcontractor | — |
| Dec 21, 2023 | Shelter HomesOther | Department of General Services | Subcontractor | — |
| Aug 1, 2023 | Mission Branch Library RenovationBuildings & facilities | City and County of San Francisco - Dept. of Public Works | Subcontractor | — |
| Jun 1, 2023 | San Mateo High School Chill & Boiler RepHVAC & mechanical | San Mateo Union High School District | Subcontractor | — |
| May 23, 2023 | AB94 Seismic ImprovementsBuildings & facilities | University of California, Davis, Design and Construction Management | Subcontractor | — |
| Feb 8, 2023 | Burlingame High School New GymnasiumBuildings & facilities | San Mateo Union High School District | Subcontractor | — |
| Jan 16, 2023 | Laguna Honda Hospital and RehabilitationBuildings & facilities | City and County of San Francisco - Dept. of Public Works | Subcontractor | — |
| Jan 7, 2023 | Piedmont Community Pool ProjectParks, landscape & fields | City of Piedmont | Subcontractor | — |
| Dec 26, 2022 | Applied Science Center--Construction SerBuildings & facilities | California State University East Bay | Subcontractor | — |
| Aug 31, 2021 | Recreation and Aquatics Center ProjectBuildings & facilities | City of San Bruno - Public Works Department | Subcontractor | — |
| Aug 17, 2020 | Fire Station No. 6 & Fire Training CenteDemolition & site work | City of Hayward Public Works - E & T | Subcontractor | — |
Most recent 23 of 23. 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
- San Francisco Community College District · 2 projects
- Fort Bragg Unified School District · 2 projects
- San Mateo Union High School District · 2 projects
- City and County of San Francisco - Dept. of Public Works · 2 projects
- Contra Costa County Public Works Department · 2 projects
- City of Piedmont · 1 project
- Antioch Unified School District · 1 project
- City of South San Francisco · 1 project
- Pacifica School District · 1 project
- San Mateo Union High School District · 1 project
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