Cornerstone Insulation, B General Building Contractor in Los Angeles, CA
Cornerstone Insulation operating as a corporation holds an active California contractor license (CSLB #1074882), valid through Apr 30, 2027. First issued in 2021, the license has been on the CSLB roster for 5 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Merchants Bonding Company (mutual) and an exempt workers' compensation status (no employees on payroll). The business is based in Los Angeles, in Los Angeles County, California.
- License Number
- 1074882
- Issued
- Apr 16, 2021
- Status
- CLEAR
- Expires
- Apr 30, 2027
- Entity
- Corporation
- Surety
- Merchants Bonding Company (mutual)
- Bond Number
- 100273077
- Effective
- Nov 11, 2023
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Jun 3, 2025
- Expires
- —
This contractor warrants a closer look before contracting:
- Workers' comp listed as exempt
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Cornerstone Insulation licensed in California?
Yes. Cornerstone Insulation holds California Contractors State License Board license number 1074882, which is active and in good standing. The license was first issued on April 16, 2021. It is valid through April 30, 2027.
What does Cornerstone Insulation specialize in?
Cornerstone Insulation is licensed for one CSLB classification: B General Building Contractor.
Where is Cornerstone Insulation headquartered?
Cornerstone Insulation is headquartered at 9350 Sierra Mar Dr, Los Angeles, CA 90069, in Los Angeles County, California.
Does Cornerstone Insulation have an active surety bond on file with CSLB?
Yes. Cornerstone Insulation has an active California contractor surety bond filed with Merchants Bonding Company (mutual).
Does Cornerstone Insulation carry workers' compensation coverage?
Cornerstone Insulation reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Cornerstone Insulation's contractor license?
You can verify Cornerstone Insulation's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1074882.
- License issuedApr 16, 2021
- Bond activeNov 11, 2023
- WC coverage startsJun 3, 2025
- License expiresApr 30, 2027
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