NATIONAL AIR BALANCE COMPANY INC
California contractor license #348633 · Pleasanton, Alameda County
License
- License number
- 348633
- Status
- Clear
- Classifications
- C-61/D-62 Air and Water Balancing
- Business type
- Corporation
- Issued
- Dec 1, 1977
- Expires
- Sep 30, 2028
- Workers' compensation
- Workers' Compensation Insurance — Sentinel Insurance Company Ltd
- Contractor's bond
- $25,000 — Merchants Bonding Company (Mutual)
- DIR public works registration
- Registered through Jun 30, 2028
From the California Contractors State License Board (CSLB) public license file, last updated Sep 29, 2026. Verify license #348633 on CSLB's License Check.
California public works
NATIONAL AIR BALANCE COMPANY INC appears on 218 public works projects registered with the California Department of Industrial Relations, 2 of them as the prime contractor, for 131 awarding bodies between 2016 and 2026. Projects it led total $25,150 in reported contract value.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Jun 4, 2026 | Leonardo Da Vinci TK ClassroomsBuildings & facilities | Sacramento City Unified School District | Subcontractor | $875,000 |
| May 21, 2026 | CNC HVAC Upgrade ProjectHVAC & mechanical | Kerman Unified School District | Subcontractor | $259,000 |
| May 7, 2026 | Cordova High Modernization Increm.1&2Buildings & facilities | Folsom Cordova Unified School District | Subcontractor | $35,415,234 |
| Apr 23, 2026 | Laurel School Upper HVAC ElectrificationWater | Menlo Park City School District | Subcontractor | $1,809,056 |
| Apr 16, 2026 | Laurel School Lower HVAC ElectrificationWater | Menlo Park City School District | Subcontractor | $1,500,914 |
| Apr 10, 2026 | Evaporative Cooler ReplacementsOther | Department of Transportation, Division of Procurement and Contracts | Subcontractor | $87,120 |
| Apr 9, 2026 | CRES MPB HVAC UpgradeRoofing | Woodlake Unified School District | Subcontractor | $683,000 |
| Mar 20, 2026 | Lincoln Ave and Lancaster Drive SidewalkWater | City of Rohnert Park | Subcontractor | $32,700 |
| Feb 10, 2026 | Central Library Ceiling Lighting UpgradeFire & life safety | County of Fresno Department of Public Works and Planning | Subcontractor | $4,660,300 |
| Feb 2, 2026 | Odor Scrubber Replacements (East PCs)Other | Union Sanitary District | Prime | $7,250 |
| Feb 1, 2026 | WW-767RRoofing | San Francisco Public Utilities Commission | Subcontractor | $19,339,195 |
| Dec 22, 2025 | Municipal Service Center HVAC ReplacemenHVAC & mechanical | City of Redwood City Public Works Services | Subcontractor | $985,121 |
| Dec 9, 2025 | Multi-Site HVAC Repl PH5 FHO OD VNLHVAC & mechanical | Twin Rivers Unified School District (eff. January 1, 2024) | Subcontractor | $7,775,000 |
| Nov 5, 2025 | Multisite HVAC - HVAC2-25HVAC & mechanical | Palo Alto Unified School District | Subcontractor | $7,102,000 |
| Nov 4, 2025 | Forum Hall Reroof, FCCRoofing | State Center Community College District | Subcontractor | $1,157,000 |
| Nov 4, 2025 | Heat Pump Replacement, DOHVAC & mechanical | State Center Community College District | Subcontractor | $1,724,000 |
| Oct 24, 2025 | Redwood MS Campus ModBuildings & facilities | Napa Valley Unified School District | Subcontractor | $1,290,005 |
| Oct 24, 2025 | NHS and VHS Campus ModBuildings & facilities | Napa Valley Unified School District | Subcontractor | $12,000 |
| Sep 30, 2025 | Regional Medical Center Emergency Dept.Buildings & facilities | County of Santa Clara, Facilities and Fleet | Subcontractor | $9,029,566 |
| Sep 9, 2025 | Marin County Juvenile Hall HVAC ReplacemHVAC & mechanical | Marin County Department of Public Works | Subcontractor | $1,683,560 |
| Jul 15, 2025 | Increment 2 Modernization Group 1HVAC & mechanical | Santa Clara Unified School District | Subcontractor | $822,569 |
| Jun 18, 2025 | Elkhorn Village ModernizationBuildings & facilities | Washington Unified School District | Subcontractor | $55,290,446 |
| Jun 18, 2025 | Replace HVAC System @ OPSHVAC & mechanical | Porterville Developmental Center | Subcontractor | $836,052 |
| Jun 16, 2025 | DANCE ROOM HVAC REPLACEMENTHVAC & mechanical | Fresno Unified School District | Subcontractor | $404,000 |
| Jun 16, 2025 | UNIT VENTILATION,EMS, AND CENTRAL PLANTHVAC & mechanical | Fresno Unified School District | Subcontractor | $2,768,000 |
Most recent 25 of 218. 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
- Fresno Unified School District · 13 projects
- County of Santa Clara, Facilities and Fleet · 6 projects
- County of San Mateo PDU · 6 projects
- City and County of San Francisco - Dept. of Public Works · 6 projects
- UCSF Real Estate · 5 projects
- University of California Merced · 5 projects
- San Juan Unified School District · 4 projects
- Napa Valley Unified School District · 3 projects
- San Francisco Public Utilities Commission · 3 projects
- Twin Rivers Unified School District (eff. January 1, 2024) · 3 projects
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