Zak Plumbing CO, C-36 Plumbing Contractor in Mill Valley, CA
Zak Plumbing CO operating as a sole owner holds an active California contractor license (CSLB #654608), valid through Sep 24, 2026. First issued in 1992, the license has been on the CSLB roster for 34 years. It carries a single CSLB classification: C-36 — Plumbing Contractor. Records show an active surety bond on file with Western Surety Company and a previously-filed workers' compensation policy with Security National Insurance Company that is no longer active. The business is based in Mill Valley, in Marin County, California.
- License Number
- 654608
- Issued
- Sep 22, 1992
- Status
- CLEAR
- Expires
- Sep 24, 2026
- Entity
- Sole Owner
- Surety
- Western Surety Company
- Bond Number
- 67745856
- Effective
- Feb 5, 2026
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Security National Insurance Company
- Policy Number
- SWC1554373
- Effective
- May 6, 2025
- Expires
- May 6, 2026
This contractor has a compliance issue in its public CSLB record:
- No active workers' comp on file
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Zak Plumbing CO licensed in California?
Yes. Zak Plumbing CO holds California Contractors State License Board license number 654608, which is active and in good standing. The license was first issued on September 22, 1992. It is valid through September 24, 2026.
What does Zak Plumbing CO specialize in?
Zak Plumbing CO is licensed for one CSLB classification: C-36 Plumbing Contractor.
Where is Zak Plumbing CO headquartered?
Zak Plumbing CO is headquartered at P O Box 281, Mill Valley, CA 94942, in Marin County, California.
Does Zak Plumbing CO have an active surety bond on file with CSLB?
Yes. Zak Plumbing CO has an active California contractor surety bond filed with Western Surety Company.
Does Zak Plumbing CO carry workers' compensation coverage?
Zak Plumbing CO has a previously-filed workers' compensation policy with Security National Insurance Company that is no longer active.
How do I verify Zak Plumbing CO's contractor license?
You can verify Zak Plumbing CO's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=654608.
- License issuedSep 22, 1992
- WC coverage startsMay 6, 2025
- Bond activeFeb 5, 2026
- WC expiredMay 6, 2026
- License expiresSep 24, 2026
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