MD INSULATION COMPANY
California contractor license #623669 · South El Monte, Los Angeles County
License
- License number
- 623669
- Status
- Clear
- Classifications
- C-2 Insulation and Acoustical Contractor
- Business type
- Corporation
- Issued
- Jul 24, 1991
- Expires
- Jul 31, 2027
- Workers' compensation
- Workers' Compensation Insurance — Carolina Casualty Insurance Company
- Contractor's bond
- $25,000 — Western Surety Company
- DIR public works registration
- Registered through Jun 30, 2028
From the California Contractors State License Board (CSLB) public license file, last updated Apr 1, 2026. Verify license #623669 on CSLB's License Check.
California public works
MD INSULATION COMPANY appears on 15 public works projects registered with the California Department of Industrial Relations, for 14 awarding bodies between 2022 and 2025.
| Date | Project | Awarding body | Role | Contract amount |
|---|---|---|---|---|
| Aug 21, 2025 | LAX residential Sound Insulation, Gp 8Other | Los Angeles World Airports | Subcontractor | $4,125,000 |
| Jun 4, 2025 | Westside Library Expansion ProjectDesign, inspection & consulting | City of Rancho Cucamonga | Subcontractor | $11,500,000 |
| Jan 14, 2025 | Bloomington Animal Care FacilityBuildings & facilities | County of San Bernardino - Project Management Division | Subcontractor | $50,196,000 |
| Dec 20, 2024 | The SierotyOther | Los Angeles Housing Department (LAHD) | Subcontractor | $12,505,722 |
| Dec 19, 2024 | Irwindale Public Library Improv. ProjectBuildings & facilities | City of Irwindale | Subcontractor | $8,084,701 |
| Nov 12, 2024 | Seaglass fka Willowbrook 3Buildings & facilities | Los Angeles County Development Authority | Subcontractor | $26,362,992 |
| Aug 21, 2024 | East End VillageOther | Pomona Housing Development, LP | Subcontractor | — |
| May 31, 2024 | 24-06284 NHSBuildings & facilities | Rowland Unified School District | Subcontractor | — |
| Jan 31, 2024 | Loma VerdeOther | Los Angeles Housing Department (LAHD) | Subcontractor | — |
| Jan 7, 2024 | Homekey Phase 2Other | City of El Monte | Subcontractor | — |
| Dec 18, 2023 | Sierra Vista JHS MPR & KitchenOther | William S. Hart Union High School District | Subcontractor | $13,145,777 |
| Aug 29, 2023 | CityHall Tenant ImprovementBuildings & facilities | City of Moorpark | Subcontractor | $6,483,358 |
| Jun 7, 2023 | The Weingart GreenleafOther | Weingart Greenleaf LLC | Subcontractor | — |
| Apr 17, 2023 | Liberty LaneOther | County of San Bernardino CDH | Subcontractor | — |
| Apr 25, 2022 | Crossroads at WashingtonOther | Washington Santa Ana Housing Partners L.P. | Subcontractor | — |
Most recent 15 of 15. 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
- Los Angeles Housing Department (LAHD) · 2 projects
- City of El Monte · 1 project
- City of Irwindale · 1 project
- City of Moorpark · 1 project
- Weingart Greenleaf LLC · 1 project
- Pomona Housing Development, LP · 1 project
- Rowland Unified School District · 1 project
- William S. Hart Union High School District · 1 project
- Los Angeles County Development Authority · 1 project
- Los Angeles World Airports · 1 project
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