Kuenzli Michael Plumbing CO, C-36 Plumbing Contractor in San Francisco, CA
Kuenzli Michael Plumbing CO operating as a sole owner holds an active California contractor license (CSLB #576600), valid through Sep 30, 2027. First issued in 1989, the license has been on the CSLB roster for 37 years. It carries a single CSLB classification: C-36 — Plumbing Contractor. Records show an active surety bond on file with Atlantic Specialty Insurance Company and an exempt workers' compensation status (no employees on payroll). The business is based in San Francisco, in San Francisco County, California.
- License Number
- 576600
- Issued
- Sep 6, 1989
- Status
- CLEAR
- Expires
- Sep 30, 2027
- Entity
- Sole Owner
- Surety
- Atlantic Specialty Insurance Company
- Bond Number
- 810025476
- Effective
- Aug 22, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Nov 26, 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 Kuenzli Michael Plumbing CO licensed in California?
Yes. Kuenzli Michael Plumbing CO holds California Contractors State License Board license number 576600, which is active and in good standing. The license was first issued on September 6, 1989. It is valid through September 30, 2027.
What does Kuenzli Michael Plumbing CO specialize in?
Kuenzli Michael Plumbing CO is licensed for one CSLB classification: C-36 Plumbing Contractor.
Where is Kuenzli Michael Plumbing CO headquartered?
Kuenzli Michael Plumbing CO is headquartered at 1234 21 Avenue, San Francisco, CA 94122, in San Francisco County, California.
Does Kuenzli Michael Plumbing CO have an active surety bond on file with CSLB?
Yes. Kuenzli Michael Plumbing CO has an active California contractor surety bond filed with Atlantic Specialty Insurance Company.
Does Kuenzli Michael Plumbing CO carry workers' compensation coverage?
Kuenzli Michael Plumbing CO reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Kuenzli Michael Plumbing CO's contractor license?
You can verify Kuenzli Michael Plumbing CO's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=576600.
- License issuedSep 6, 1989
- Bond activeAug 22, 2025
- WC coverage startsNov 26, 2025
- License expiresSep 30, 2027
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