Public CSLB records

Sierra Builders & Design INC, B General Building Contractor in South San Francisco, CA

License #1136963·Corporation·South San Francisco, San Mateo County
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Summary

Sierra Builders & Design INC operating as a corporation holds an active California contractor license (CSLB #1136963), valid through May 31, 2027. First issued in 2025, the license has been on the CSLB roster for 1 year. It carries 3 CSLB classifications: B General Building Contractor, C-10 Electrical Contractor, and C-36 Plumbing Contractor. Records show an active surety bond on file with Western Surety Company and active workers' compensation coverage from American Casualty Company of Reading PA. The business is based in South San Francisco, in San Mateo County, California.

Business Information
Address
2268 Westborough Boulevard,building 302-#213
South San Francisco, CA 94080
License Details & Classifications
License Number
1136963
Issued
May 2, 2025
Status
CLEAR
Expires
May 31, 2027
Entity
Corporation
Financial & Insurance Coverage
Contractor Bond
Surety
Western Surety Company
Bond Number
67466007
Effective
Apr 25, 2025
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
American Casualty Company of Reading PA
Policy Number
8035663314
Effective
Sep 23, 2025
Expires
Sep 23, 2026
Newly Licensed

Recently licensed: the CSLB license is active and in good standing, issued within the last 2 years.

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 Sierra Builders & Design INC licensed in California?

Yes. Sierra Builders & Design INC holds California Contractors State License Board license number 1136963, which is active and in good standing. The license was first issued on May 2, 2025. It is valid through May 31, 2027.

What does Sierra Builders & Design INC specialize in?

Sierra Builders & Design INC is licensed for 3 CSLB classifications: B General Building Contractor, C-10 Electrical Contractor, and C-36 Plumbing Contractor.

Where is Sierra Builders & Design INC headquartered?

Sierra Builders & Design INC is headquartered at 2268 Westborough Boulevard,building 302-#213, South San Francisco, CA 94080, in San Mateo County, California.

Does Sierra Builders & Design INC have an active surety bond on file with CSLB?

Yes. Sierra Builders & Design INC has an active California contractor surety bond filed with Western Surety Company.

Does Sierra Builders & Design INC carry workers' compensation coverage?

Yes. Sierra Builders & Design INC carries active workers' compensation coverage through American Casualty Company of Reading PA.

How do I verify Sierra Builders & Design INC's contractor license?

You can verify Sierra Builders & Design INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1136963.

Activity Timeline
  1. Bond activeApr 25, 2025
  2. License issuedMay 2, 2025
  3. WC coverage startsSep 23, 2025
  4. WC expiresSep 23, 2026
  5. License expiresMay 31, 2027
Other contractors in San Mateo County
California lien & payment resources

Working a California job with Sierra Builders & Design INC, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.

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