WESTSIDE MECHANICAL INCORPORATED
California contractor license #773449 · Cotati, Sonoma County
License
- License number
- 773449
- Status
- Clear
- Classifications
- C-4 Boiler, Hot-Water Heating and Steam Fitting Contractor
- C-16 Fire Protection Contractor
- C-36 Plumbing Contractor
- C-38 Refrigeration Contractor
- Business type
- Corporation
- Issued
- Jan 11, 2000
- Expires
- Jan 31, 2028
- Workers' compensation
- Workers' Compensation Insurance — Markel Insurance Company
- Contractor's bond
- $25,000 — American Contractors Indemnity Company
- DIR public works registration
- Registered through Jun 30, 2028
From the California Contractors State License Board (CSLB) public license file, last updated Jan 16, 2026. Verify license #773449 on CSLB's License Check.
California public works
WESTSIDE MECHANICAL INCORPORATED appears on 9 public works projects registered with the California Department of Industrial Relations, 1 of them as the prime contractor, for 8 awarding bodies between 2023 and 2026. Projects it led total $65,749 in reported contract value.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| May 6, 2026 | Napa River Eco CenterBuildings & facilities | City of American Canyon | Subcontractor | $6,347,266 |
| Jun 25, 2025 | Lakeport Library Fire SuppressionFire & life safety | Lake County Public Services | Prime | $65,749 |
| Jun 11, 2025 | Ritter Builds Hope Integrated BehavioralBuildings & facilities | Ritter Center | Subcontractor | $7,785,078 |
| May 29, 2025 | 1450 MCD HVAC/RemodelHVAC & mechanical | Petaluma Health Center, Inc. | Subcontractor | $2,106,085 |
| Jan 28, 2025 | Casa Adult Transition PortablesBuildings & facilities | Petaluma Joint Union High School District | Subcontractor | $732,607 |
| Dec 17, 2024 | Lake County Sheriff's Administration FacBuildings & facilities | Lake County Public Services | Subcontractor | $11,965,000 |
| May 7, 2024 | Mentis Campus RenovationBuildings & facilities | Mentis | Subcontractor | $3,113,821 |
| Jan 18, 2024 | Construction of the Foley Family CommuniOther | City of Healdsburg | Subcontractor | — |
| Mar 22, 2023 | Fire Station 5 Resiliency and RelocationOther | City of Santa Rosa | Subcontractor | — |
Most recent 9 of 9. 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
- Lake County Public Services · 2 projects
- City of Healdsburg · 1 project
- Mentis · 1 project
- City of Santa Rosa · 1 project
- Ritter Center · 1 project
- Petaluma Health Center, Inc. · 1 project
- City of American Canyon · 1 project
- Petaluma Joint Union High School District · 1 project
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