CASTON INC
California contractor license #502789 · San Bernardino, San Bernardino County
License
- License number
- 502789
- Status
- Clear
- Classifications
- B General Building Contractor
- C-2 Insulation and Acoustical Contractor
- C-9 Drywall Contractor
- C-35 Lathing and Plastering Contractor
- C-61/D-39 Scaffolding
- Business type
- Corporation
- Issued
- Dec 15, 1986
- Expires
- Aug 31, 2028
- Workers' compensation
- Workers' Compensation Insurance — Zurich American 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 Aug 31, 2026. Verify license #502789 on CSLB's License Check.
California public works
CASTON INC appears on 264 public works projects registered with the California Department of Industrial Relations, 7 of them as the prime contractor, for 102 awarding bodies between 2018 and 2026. Projects it led total $32,074,416 in reported contract value.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Aug 11, 2026 | 25-26-17PD REBID Patritot HS BleacherOther | Jurupa Unified School District | Subcontractor | $2,044,000 |
| Jul 7, 2026 | Redlands Police Department Safety HallBuildings & facilities | City of Redlands - Facilities and Community Services Dept. | Subcontractor | $52,772,525 |
| Jun 25, 2026 | LHS - Modernization 6 Bldgs.Buildings & facilities | Lynwood Unified School District | Subcontractor | $43,014,965 |
| Jun 24, 2026 | STAR VIEW & HARBOUR VIEW ES ESLOP PORTABPlumbing & restrooms | OCEAN VIEW SCHOOL DISTRICT | Subcontractor | $1,783,000 |
| Jun 24, 2026 | New Elementary School #37Buildings & facilities | Fontana Unified School District | Subcontractor | $71,200,196 |
| Jun 9, 2026 | SITE LEASE AND CONSTRUCTION SERVICES LLBBuildings & facilities | DOWNEY UNIFIED SCHOOL DISTRICT | Subcontractor | $31,864,647 |
| Jun 9, 2026 | District Central Services BuildingBuildings & facilities | Menifee Union School District | Subcontractor | $9,370,274 |
| Jun 4, 2026 | Ofelia Valdez Yeager Eastside ElementaryBuildings & facilities | Riverside Unified School District - Purchasing Department | Subcontractor | $56,411,438 |
| May 20, 2026 | ME Series 4 Sierra Vista Music /Food SvcBuildings & facilities | Irvine Unified School District | Subcontractor | $21,682 |
| May 20, 2026 | Sierra Vista MPR Expansion 2024Buildings & facilities | Irvine Unified School District | Subcontractor | $105,845 |
| May 7, 2026 | DUPLICATE / DELETEOther | Temecula Valley Unified School District | Prime | — |
| May 7, 2026 | MARGARITA MS MODERNIZATIONStorm drain & flood control | Temecula Valley Unified School District | Subcontractor | $9,679,252 |
| Apr 21, 2026 | 1695 CERRITOS ES MODERNIZATIONBuildings & facilities | ABC Unified School District | Subcontractor | $4,558,400 |
| Apr 14, 2026 | Rancho Cucamonga HS Column RestorationOther | Chaffey Joint Union High School District | Prime | $2,849,585 |
| Apr 14, 2026 | TRHS Campus Interim HousingBuildings & facilities | Fullerton Joint Union High School District | Subcontractor | $6,866,779 |
| Mar 17, 2026 | LLB - SGHS Gym Bleacher & Flooring ReplaPainting & flooring | San Bernardino City USD | Subcontractor | $3,064,054 |
| Mar 17, 2026 | 180/01F ADAMS ECLC MODERNIZATIONBuildings & facilities | Desert Sands USD | Prime | $21,114,499 |
| Feb 26, 2026 | AHS Building H and PAC AnnexBuildings & facilities | Arcadia Unified School District | Subcontractor | $25,565,831 |
| Feb 24, 2026 | Tubman Village CS WSM GMP No. 1 LLBBuildings & facilities | San Diego Unified School District | Subcontractor | $58,590,774 |
| Feb 19, 2026 | Professional Development Cntr III TenantBuildings & facilities | Chino Valley Unified School District | Subcontractor | $6,570,491 |
| Jan 28, 2026 | W68P2859Buildings & facilities | Capistrano Unified School District | Subcontractor | $19,288,000 |
| Jan 23, 2026 | Loma Vista MS Improvements ProjectHVAC & mechanical | Alvord Unified School District | Subcontractor | $7,989,720 |
| Jan 20, 2026 | Serrano High School TransformationBuildings & facilities | Snowline Joint Unified School District | Subcontractor | $31,069,232 |
| Dec 1, 2025 | Career Pathways 2Demolition & site work | San Bernardino Community College District | Subcontractor | $56,136,000 |
| Nov 18, 2025 | SVHS New MPR Bldg. B25LS446Buildings & facilities | Simi Valley Unified School District | Subcontractor | $40,880,615 |
Most recent 25 of 264. 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
- Newport-Mesa Unified School District · 23 projects
- Long Beach USD - Facilities Development & Planning · 14 projects
- Simi Valley Unified School District · 12 projects
- San Bernardino City USD · 11 projects
- Irvine Unified School District · 9 projects
- Moreno Valley Unified School District. · 8 projects
- Chino Valley Unified School District · 7 projects
- DOWNEY UNIFIED SCHOOL DISTRICT · 6 projects
- Santa Monica-Malibu Unified School District- <>FIP Procurement · 6 projects
- Glendale Unified School District · 6 projects
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