R & R MAHER CONSTRUCTION COMPANY INC
California contractor license #508930 · Napa, Napa County
License
- License number
- 508930
- Status
- Clear
- Classifications
- A General Engineering Contractor
- B General Building Contractor
- C-8 Concrete Contractor
- Business type
- Corporation
- Issued
- Apr 10, 1987
- Expires
- Apr 30, 2027
- Workers' compensation
- Workers' Compensation Insurance — National Union Fire Insurance Company Of Pittsburgh, Pa
- 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 Oct 1, 2026. Verify license #508930 on CSLB's License Check.
California public works
R & R MAHER CONSTRUCTION COMPANY INC appears on 126 public works projects registered with the California Department of Industrial Relations, 2 of them as the prime contractor, for 88 awarding bodies between 2015 and 2026. Projects it led total $694,000 in reported contract value.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Aug 4, 2026 | The Terraces at Copeland CreekParks, landscape & fields | Burbank Housing Development Corporation | Subcontractor | $11,036,832 |
| Jul 8, 2026 | Wyda Way Sidewalk ImprovementsStorm drain & flood control | County of Sacramento | Subcontractor | $942,481 |
| Jun 16, 2026 | 2026 CITYWIDE PAVEMENT REHABILITATION PRTraffic & signals | City of Benicia | Subcontractor | $4,803,450 |
| Jun 10, 2026 | Antioch MS Cooling Tower ReplacementHVAC & mechanical | Antioch Unified School District | Subcontractor | $408,000 |
| Jun 9, 2026 | Bowditch MS New Athletic Field & CourtsParks, landscape & fields | San Mateo-Foster City School District | Subcontractor | $6,319,000 |
| Jun 6, 2026 | Murwood ModernizationBuildings & facilities | Walnut Creek School District | Subcontractor | $15,325,589 |
| May 20, 2026 | Old Redwood Hwy Pavement PreservationPaving & streets | Town of Windsor | Subcontractor | $1,860,570 |
| May 7, 2026 | Cordova Villa Site Work Ph1.1&1.2Demolition & site work | Folsom Cordova Unified School District | Subcontractor | $25,303,075 |
| May 6, 2026 | Multi-Site RR Refresh FHS FRMSPlumbing & restrooms | Twin Rivers Unified School District (eff. January 1, 2024) | Subcontractor | $3,642,095 |
| May 5, 2026 | S.Campus Bldg. 4 HVAC Replacem, PW 23-10HVAC & mechanical | Napa County Public Works | Subcontractor | $3,293,900 |
| May 1, 2026 | John Reed ES PortablesBuildings & facilities | Cotati-Rohnert Park Unified School District | Subcontractor | $603,570 |
| Apr 21, 2026 | PD Drain Line InstallHVAC & mechanical | City of Napa - Public Works Department | Subcontractor | $34,194 |
| Apr 16, 2026 | BHS and JHES roofing upgradesRoofing | Benicia Unified School District | Subcontractor | $2,812,667 |
| Apr 15, 2026 | FMCField2026Parks, landscape & fields | Healdsburg Unified School District | Subcontractor | $4,882,141 |
| Mar 13, 2026 | Portable Bldgs - River OaksBuildings & facilities | Galt Joint Union Elementary School District | Subcontractor | $358,300 |
| Mar 12, 2026 | Playgrounds and CourtyardsParks, landscape & fields | Napa Valley Unified School District | Subcontractor | $18,626,064 |
| Jan 16, 2026 | SB NRV EV ChargersSolar, EV & energy | San Mateo County Transit District | Subcontractor | $129,500 |
| Jan 12, 2026 | AHS Bld J HVAC ReplacementHVAC & mechanical | Martinez Unified School District | Subcontractor | $1,338,000 |
| Nov 18, 2025 | Lorenzo Manor E.S. New K BuildingBuildings & facilities | San Lorenzo Unified School District 2 | Subcontractor | $12,076,541 |
| Nov 18, 2025 | Northampton Park Restroom ProjectSewer & wastewater | City of American Canyon | Subcontractor | $131,777 |
| Nov 17, 2025 | Delaware Street SRTS Bike Lane ProjectTraffic & signals | City of San Mateo | Subcontractor | $2,619,845 |
| Oct 15, 2025 | Vernon/Atlantic St Safety ImprovementPaving & streets | City of Roseville - Department of Public Works | Subcontractor | $1,948,279 |
| Oct 9, 2025 | Bolinas Storm Drain Improvements Phase 2Sewer & wastewater | Town of Ross | Subcontractor | $887,518 |
| Oct 7, 2025 | Dunphy Park Improvements Phase 2Parks, landscape & fields | City of Sausalito | Subcontractor | $1,283,235 |
| Sep 9, 2025 | Frontage LandscapeParks, landscape & fields | Sierra Joint Community College District | Subcontractor | $1,383,000 |
Most recent 25 of 126. 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
- County of Solano - Department of General Services · 5 projects
- Sacramento City Unified School District · 4 projects
- Napa Valley Unified School District · 4 projects
- Dublin Unified School District · 4 projects
- Healdsburg Unified School District · 3 projects
- Walnut Creek School District · 3 projects
- Ukiah Unified School District · 3 projects
- Fairfield-Suisun Unified School District · 3 projects
- Santa Rosa City Schools · 3 projects
- County of Sacramento · 2 projects
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