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Cornerstone Construction & Maintenance CORP

License #700207·Corporation·South San Francisco, San Mateo County
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Summary

Cornerstone Construction & Maintenance CORP operating as a corporation is licensed in California under CSLB number 700207. The license was first issued in 1994, putting the business at 32 years on the active CSLB roster. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and an exempt workers' compensation status (no employees on payroll). The business is based in South San Francisco, in San Mateo County, California.

Business Information
Address
160 El Rancho Dr
South San Francisco, CA 94080
License Details & Classifications
License Number
700207
Issued
Dec 13, 1994
Status
CLEAR
Expires
Jul 31, 2027
Entity
Corporation
Financial & Insurance Coverage
Contractor Bond
Surety
American Contractors Indemnity Company
Bond Number
SC1045646
Effective
Jan 1, 2023
Status
Active
Workers' Compensation
Coverage
Exempt
Carrier
—
Policy Number
—
Effective
Jul 16, 2025
Expires
—
Review

This contractor warrants a closer look before contracting:

  • Workers' comp listed as exempt
License StatusActive
Contractor BondOn file
Workers' CompensationActive

An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this

Frequently asked questions
Is Cornerstone Construction & Maintenance CORP licensed in California?

Yes. Cornerstone Construction & Maintenance CORP holds California Contractors State License Board license number 700207. The license was first issued on December 13, 1994. It is valid through July 31, 2027.

What does Cornerstone Construction & Maintenance CORP specialize in?

Cornerstone Construction & Maintenance CORP is licensed for one CSLB classification: B General Building Contractor.

Where is Cornerstone Construction & Maintenance CORP headquartered?

Cornerstone Construction & Maintenance CORP is headquartered at 160 El Rancho Dr, South San Francisco, CA 94080, in San Mateo County, California.

Does Cornerstone Construction & Maintenance CORP have an active surety bond on file with CSLB?

Yes. Cornerstone Construction & Maintenance CORP has an active California contractor surety bond filed with American Contractors Indemnity Company.

Does Cornerstone Construction & Maintenance CORP carry workers' compensation coverage?

Cornerstone Construction & Maintenance CORP reports an exempt workers' compensation status, meaning the business has no employees on payroll.

How do I verify Cornerstone Construction & Maintenance CORP's contractor license?

You can verify Cornerstone Construction & Maintenance CORP's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=700207.

Activity Timeline
  1. License issuedDec 13, 1994
  2. Bond activeJan 1, 2023
  3. WC coverage startsJul 16, 2025
  4. License expiresJul 31, 2027
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