KORTE'S BACKHOE SERVICE
California contractor license #1021601 · Calistoga, Napa County
License
- License number
- 1021601
- Status
- Clear
- Classifications
- C-12 Earthwork and Paving Contractor
- Business type
- Corporation
- Issued
- Dec 8, 2016
- Expires
- Dec 31, 2026
- Workers' compensation
- Workers' Compensation Insurance — State Compensation Insurance Fund
- 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 Feb 2, 2026. Verify license #1021601 on CSLB's License Check.
California public works
KORTE'S BACKHOE SERVICE appears on 23 public works projects registered with the California Department of Industrial Relations, for 17 awarding bodies between 2014 and 2026.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Jun 17, 2026 | Jesse Bethel Fields ModernizationPlumbing & restrooms | Vallejo City Unified School District | Subcontractor | $23,823,140 |
| Aug 13, 2025 | Albert Biella Elementary School ECE ModeBuildings & facilities | Santa Rosa City Schools | Subcontractor | $5,254,220 |
| Jun 11, 2025 | Helen Lehman Elementary School TK ClassrDemolition & site work | Santa Rosa City Schools | Subcontractor | $13,993,467 |
| May 14, 2025 | Stege ES Rebuild ProjectOther | West Contra Costa Unified School District | Subcontractor | $5,578,028 |
| Apr 23, 2025 | Piner High School Two-Story Classroom BuBuildings & facilities | Santa Rosa City Schools | Subcontractor | $24,369,198 |
| Mar 13, 2025 | MWE PreschoolBuildings & facilities | Windsor Unified School District | Subcontractor | $9,220,954 |
| Mar 12, 2025 | AA36- AHS CTE Building - Phase 3Buildings & facilities | West Sonoma County Union High School District | Subcontractor | $26,818,901 |
| Feb 13, 2025 | District Wide SolarSolar, EV & energy | Napa Valley Unified School District | Subcontractor | $12,613,866 |
| Jan 14, 2025 | Redwood HS FASCD Building ProjectElectrical, low voltage & AV | Tamalpais Union High School District | Subcontractor | $39,091,268 |
| Oct 22, 2024 | Hearn Community Hub Phase 1Buildings & facilities | City of Santa Rosa | Subcontractor | $33,000,000 |
| Jun 17, 2024 | San Rafael High School Aquatic Center PrBuildings & facilities | San Rafael City Schools | Subcontractor | — |
| Jun 10, 2024 | Calpella TK-K Classroom Expansion ProjecBuildings & facilities | Ukiah Unified School District | Subcontractor | — |
| Jun 4, 2024 | Public Health Lab & Coroner's OfficeOther | County of Sonoma | Subcontractor | $39,867,202 |
| Apr 24, 2024 | D.O. & Educ Center - Ctrl Rec WHSBuildings & facilities | Santa Rosa City Schools | Subcontractor | $8,221,757 |
| Mar 13, 2024 | D-628 Eng Tech Design-Build ProjectBuildings & facilities | Contra Costa Community College District | Subcontractor | $41,548,250 |
| Feb 9, 2024 | Donaldson Way Campus UpgradesBuildings & facilities | Napa Valley Unified School District | Subcontractor | $14,428,073 |
| Sep 14, 2023 | San Quentin New Education & Vocational BBuildings & facilities | California Department of Corrections and Rehabilitation - Construction Contract | Subcontractor | — |
| Jun 26, 2023 | Nicholas ES New Const-COREBuildings & facilities | Sacramento City Unified School District | Subcontractor | — |
| Jun 1, 2023 | STEAM BuildingBuildings & facilities | Calistoga Joint Unified School District | Subcontractor | — |
| Nov 26, 2022 | SRJC RoselandBuildings & facilities | Sonoma County Junior College District dba Santa Rosa Junior College | Subcontractor | — |
| Jun 2, 2022 | Lone Tree School Site ProjectParks, landscape & fields | Brentwood Union School District - | Subcontractor | — |
| Jun 10, 2019 | Calpella 2019 Roof Replacement ProjectRoofing | Ukiah Unified School District | Subcontractor | — |
| Sep 10, 2014 | Calpella A/C installationBuildings & facilities | Ukiah Unified School District | 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
- Santa Rosa City Schools · 4 projects
- Ukiah Unified School District · 3 projects
- Napa Valley Unified School District · 2 projects
- West Contra Costa Unified School District · 1 project
- City of Santa Rosa · 1 project
- West Sonoma County Union High School District · 1 project
- Contra Costa Community College District · 1 project
- County of Sonoma · 1 project
- Sacramento City Unified School District · 1 project
- Brentwood Union School District - · 1 project
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