Public Record · California Contractor

Is Zak Plumbing CO licensed, insured & complaint-free in California?

The California Contractors State License Board (CSLB) lists Zak Plumbing CO's contractor license (CSLB #654608) with the status "Work Comp Susp" as of June 27, 2026. The classification on record is C36.

Contractor record · CSLB #654608

Zak Plumbing CO

Plumbing (C-36) · Mill Valley, CA
Not Active

Not in good standing

This license is not active or in good standing, per the California Contractors State License Board (CSLB).

Why: Suspended over workers'-comp coverage.

As of June 27, 2026CSLB code: Work Comp Susp · LIC-Cont in effVerify on CSLB
License #
CSLB #654608
Classification
C36
Plumbing (C-36)
Years licensed
33
since September 22, 1992
Contractor's bond
Active
$25,000
The full dossierRedacted preview
Bond suretywho to file a claim against
Bond number
How to make a bond claim
What “Not in good standing” means + what to ask
License expiration date
Registered business entity & contact
Dated certificate PDF — emailed with your receipt

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Principals on record · CSLB

ZAK SPENCER JOSEPHContinuance Granted
ZAK JOHN ERWINSole Owner · Deceased

Workers’ compensation · CSLB

Workers' Compensation Insurance
Carrier
SECURITY NATIONAL INSURANCE COMPANY
Policy
SWC1554373
Effective
May 6, 2025
Expires
May 6, 2026

What this record means

What "Work Comp Susp" means

A workers'-comp suspension means the CSLB records a lapse in required workers'-compensation coverage. The license is not in good standing until coverage is restored. The official CSLB record shows the current detail.

How to verify this yourself

Every fact on this page comes from the California Contractors State License Board (CSLB). You can confirm it directly: look up CSLB license #654608 on the official CSLB site. This page is current as of June 27, 2026; the CSLB record is updated continuously.

What the contractor's bond covers

California requires most licensed contractors to carry a $25,000 contractor's bond. It can pay certain claims for license-law violations — it is not insurance for your project and is not a measure of work quality. The CSLB lists the surety and bond number.

What this record does and does not tell you

The California Contractors State License Board (CSLB) tracks license status, classification, bond, and workers'-comp. It does not rate work quality, track general-liability insurance, or collect customer reviews. Use it to confirm the license is real and in good standing, then check references and a written contract separately.

What classification C36 covers

CSLB #654608 is classified Plumbing (C-36). A California contractor is licensed only for the classifications on record; work outside them may fall outside the license. The full classification list is on the official CSLB record.

Common questions

Is Zak Plumbing CO licensed in California?

The California Contractors State License Board (CSLB) lists Zak Plumbing CO's license, CSLB #654608, with the status "Work Comp Susp" as of June 27, 2026. A non-CLEAR status means the license is not in good standing; check the official CSLB record for the current detail.

Is Zak Plumbing CO insured?

The California Contractors State License Board (CSLB) shows the workers'-compensation policy for CSLB #654608 as lapsed or cancelled as of June 27, 2026. Verify the current status on the official CSLB record.

Does Zak Plumbing CO have complaints or violations?

As of June 27, 2026, the California Contractors State License Board (CSLB) lists CSLB #654608 with the status "Work Comp Susp". The details, including any underlying citation or judgment, are on the official CSLB record.

Who runs Zak Plumbing CO?

The California Contractors State License Board (CSLB) lists Zak Plumbing CO as a sole-owner or single-principal license (CSLB #654608). The named principal is shown in the personnel section below, as recorded by the CSLB.

Is Zak Plumbing CO bonded?

As of June 27, 2026, the California Contractors State License Board (CSLB) shows an active contractor's bond on file for CSLB #654608. California requires a $25,000 contractor's bond; it protects against certain license-law violations, not a guarantee of work quality.

How long has Zak Plumbing CO been licensed?

The California Contractors State License Board (CSLB) shows CSLB #654608 was first issued on September 22, 1992, about 33 years ago.

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This record compiles California Contractors State License Board (CSLB) data — license, insurance, principals, and enforcement — that CSLB publishes across separate pages, current as of June 27, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.