DE BELLA MECHANICAL INC
California contractor license #520449 · Santa Clara, Santa Clara County
License
- License number
- 520449
- Status
- Clear
- Classifications
- B General Building Contractor
- C-2 Insulation and Acoustical 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
- C-43 Sheet Metal Contractor
- Business type
- Corporation
- Issued
- Nov 9, 1987
- Expires
- Nov 30, 2027
- Workers' compensation
- Workers' Compensation Insurance — Travelers Property Casualty Company Of America
- Contractor's bond
- $25,000 — Harco National Insurance Company
- 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 #520449 on CSLB's License Check.
California public works
DE BELLA MECHANICAL INC appears on 104 public works projects registered with the California Department of Industrial Relations, for 68 awarding bodies between 2018 and 2026.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Aug 6, 2026 | SRJ Pill Room HVAC ReplacementHVAC & mechanical | County of Alameda GSA-BMD | Subcontractor | $63,933 |
| Jun 6, 2026 | Murwood ModernizationBuildings & facilities | Walnut Creek School District | Subcontractor | $15,325,589 |
| May 15, 2026 | RNEW - MB RH Replace VAV Coil KitsBuildings & facilities | UCSF Real Estate | Subcontractor | $1,088,742 |
| May 7, 2026 | Van Meter Elementary School HVAC UpgradeHVAC & mechanical | Los Gatos Union School District | Subcontractor | $4,750,132 |
| Apr 20, 2026 | MCFD Admin HeadquartersOther | Sare-Regis Management Co., LP | Subcontractor | $5,069,000 |
| Mar 19, 2026 | WV General ContractorOther | West Valley-Mission Community College District | Subcontractor | $67,160,000 |
| Mar 17, 2026 | C252000024707HVAC & mechanical | California State University East Bay | Subcontractor | $1,681,037 |
| Feb 4, 2026 | Clifford HVACHVAC & mechanical | Redwood City School District | Subcontractor | $5,658,546 |
| Feb 4, 2026 | Orion HVAC ProjectHVAC & mechanical | Redwood City School District | Subcontractor | $4,545,678 |
| Dec 18, 2025 | The ElizaOther | Mercy Housing California 91, LP | Subcontractor | $51,479,602 |
| Nov 25, 2025 | HMMB 354 BSL2 Lab ConversionBuildings & facilities | University of CA-Berkeley | Subcontractor | $1,319,831 |
| Nov 18, 2025 | Lorenzo Manor E.S. New K BuildingBuildings & facilities | San Lorenzo Unified School District 2 | Subcontractor | $12,076,541 |
| Nov 10, 2025 | Riverhouse Hotel - Phase IIBuildings & facilities | Riverhouse Hotel, L.P. | Subcontractor | $22,348,713 |
| Nov 4, 2025 | Veterans Memorial Auditorium Facility UpHVAC & mechanical | County of Marin Department of Public Works | Subcontractor | $11,706,339 |
| Oct 22, 2025 | Stanyan Leaning CenterBuildings & facilities | Family Service Agency of San Francisco DBA Felton Institute | Subcontractor | $3,070,043 |
| Oct 21, 2025 | CCRMC Chiller Replacement ProjectHVAC & mechanical | Contra Costa County Public Works Department | Subcontractor | $5,907,000 |
| Aug 29, 2025 | Cox Academy Prop 51 Rehab ProjectDemolition & site work | Education for Change Public Schools | Subcontractor | $16,542,900 |
| Aug 27, 2025 | Central Kitchen ModernizationBuildings & facilities | West Contra Costa Unified School District | Subcontractor | $14,390,000 |
| Jun 23, 2025 | Sunnydale Block 7 affordable housingOther | Mayor''s Office of Housing and Community Development | Subcontractor | $75,400,000 |
| Jun 17, 2025 | Alt EdBuildings & facilities | Fort Bragg Unified School District | Subcontractor | $14,315,372 |
| Jun 11, 2025 | Sleepy Hollow Mech. Piping & ControlHVAC & mechanical | Orinda Union School District | Subcontractor | $219,923 |
| Jun 11, 2025 | HVAC- UpgradesHVAC & mechanical | Redwood City School District | Subcontractor | $4,591,346 |
| Jun 11, 2025 | HVAC UpgradesHVAC & mechanical | Redwood City School District | Subcontractor | $4,852,288 |
| Jun 11, 2025 | Sunnydale Block 9 Affordable HousingOther | Mayor''s Office of Housing and Community Development | Subcontractor | $76,600,000 |
| Jun 11, 2025 | HVAC -UpgradesHVAC & mechanical | Redwood City School District | Subcontractor | $4,591,346 |
Most recent 25 of 104. 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
- MOHCD · 7 projects
- Redwood City School District · 6 projects
- Mayor''s Office of Housing and Community Development · 5 projects
- Dublin Unified School District · 4 projects
- City and County of San Francisco - Dept. of Public Works · 4 projects
- University of CA-Berkeley · 4 projects
- MT. DIABLO UNIFIED SCHOOL DISTRICT PURCHASING · 3 projects
- Palo Alto Unified School District · 3 projects
- Peralta Community College District · 3 projects
- Fort Bragg Unified School District · 3 projects
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