Public Record · California Contractor

Is Advanced Plumbing Systems licensed, insured & complaint-free in California?

As of June 27, 2026, Advanced Plumbing Systems holds an active California contractor license (CSLB #930671), classification C36, and carries an active workers'-compensation policy, with no open enforcement actions on record, according to the California Contractors State License Board (CSLB).

Contractor record · CSLB #930671

Advanced Plumbing Systems

Plumbing (C-36) · Oceanside, CA
License Active

Active · no open actions

License status is CLEAR with no open enforcement actions on record, per the California Contractors State License Board (CSLB).

As of June 27, 2026CSLB code: CLEARVerify on CSLB
License #
CSLB #930671
Classification
C36
Plumbing (C-36)
Years licensed
17
since April 2, 2009
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 “Active · no open actions” means + what to ask
License expiration date
Registered business entity & contact
Dated certificate PDF — emailed with your receipt

Unlock every field above for Advanced Plumbing Systems — including who to file a claim against the $25,000 bond. Delivered as a dated certificate PDF, emailed with your receipt. Public records, not a background check.

$9 · instant PDF · emailed with receipt

Principals on record · CSLB

MC CLAIN JUSTIN JAMES| MCCLAIN JUSTINResponsible Managing Officer
MC CLAIN BETSY ARLENE| MCCLAIN BETSY AChief Executive Officer/President

Workers’ compensation · CSLB

Workers' Compensation Insurance
Carrier
INSURANCE COMPANY OF THE WEST
Policy
WSD503604309
Effective
March 1, 2026
Expires
March 1, 2027

What this record means

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 #930671 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 #930671 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 Advanced Plumbing Systems licensed in California?

Yes. As of June 27, 2026, the California Contractors State License Board (CSLB) lists Advanced Plumbing Systems with an active contractor license, CSLB #930671 (classification C36), in a CLEAR status.

Is Advanced Plumbing Systems insured?

As of June 27, 2026, the California Contractors State License Board (CSLB) shows an active workers'-compensation policy on file for CSLB #930671. This covers workers' comp; it does not by itself confirm general-liability coverage, which the CSLB does not track.

Does Advanced Plumbing Systems have complaints or violations?

As of June 27, 2026, the California Contractors State License Board (CSLB) shows no open enforcement actions, citations, or disciplinary bonds on record for CSLB #930671. The CSLB is the authoritative source for complaint history.

Who runs Advanced Plumbing Systems?

The California Contractors State License Board (CSLB) lists 2 principals on record for CSLB #930671, shown by name and title in the personnel section below.

Is Advanced Plumbing Systems bonded?

As of June 27, 2026, the California Contractors State License Board (CSLB) shows an active contractor's bond on file for CSLB #930671. California requires a $25,000 contractor's bond; it protects against certain license-law violations, not a guarantee of work quality.

How long has Advanced Plumbing Systems been licensed?

The California Contractors State License Board (CSLB) shows CSLB #930671 was first issued on April 2, 2009, about 17 years ago.

Get a free quote from a vetted plumbing contractor in Oceanside.

Comparing options? We can connect you with a licensed, insured plumbing contractor for a free quote. Optional — the verdict above is already free and never behind a form.

Free · no obligation

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.