Public CSLB records

Quality Systems Installations LTD, C-61/D-34 Prefabricated Equipment Contractor in South San Francisco, CA

License #597671·Corporation·South San Francisco, San Mateo County
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Summary

Quality Systems Installations LTD operating as a corporation holds California contractor license #597671, which is currently expired (lapsed Jul 31, 2026) and not valid to contract until it is renewed. First issued in 1990, the license has been on the CSLB roster for 36 years. It carries a single CSLB classification: C-61/D-34 — Prefabricated Equipment Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and active workers' compensation coverage from Security National Insurance Company. The business is based in South San Francisco, in San Mateo County, California.

Business Information
Address
100 E Grand Ave Unit 2
South San Francisco, CA 94080
License Details & Classifications
License Number
597671
Issued
Jul 5, 1990
Status
CLEAR
Expires
Jul 31, 2026
Entity
Corporation
Financial & Insurance Coverage
Contractor Bond
Surety
American Contractors Indemnity Company
Bond Number
SC946403
Effective
Jan 1, 2023
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Security National Insurance Company
Policy Number
SWC1422141
Effective
Jan 1, 2026
Expires
Jan 1, 2027
Alert

This contractor has a compliance issue in its public CSLB record:

  • License expired
License StatusInactive / Expired
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 Quality Systems Installations LTD licensed in California?

Quality Systems Installations LTD previously held California Contractors State License Board license number 597671, but the license expired on July 31, 2026 and is not currently valid. It was first issued on July 5, 1990.

What does Quality Systems Installations LTD specialize in?

Quality Systems Installations LTD is licensed for one CSLB classification: C-61/D-34 Prefabricated Equipment Contractor.

Where is Quality Systems Installations LTD headquartered?

Quality Systems Installations LTD is headquartered at 100 E Grand Ave Unit 2, South San Francisco, CA 94080, in San Mateo County, California.

Does Quality Systems Installations LTD have an active surety bond on file with CSLB?

Yes. Quality Systems Installations LTD has an active California contractor surety bond filed with American Contractors Indemnity Company.

Does Quality Systems Installations LTD carry workers' compensation coverage?

Yes. Quality Systems Installations LTD carries active workers' compensation coverage through Security National Insurance Company.

How do I verify Quality Systems Installations LTD's contractor license?

You can verify Quality Systems Installations LTD's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=597671.

Activity Timeline
  1. License issuedJul 5, 1990
  2. Bond activeJan 1, 2023
  3. WC coverage startsJan 1, 2026
  4. License expiredJul 31, 2026
  5. WC expiresJan 1, 2027
Other contractors in San Mateo County
California lien & payment resources

Working a California job with Quality Systems Installations LTD, 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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