Public Record · California Contractor

Is Advantage Gutter Systems licensed, insured & complaint-free in California?

Advantage Gutter Systems has held an active California contractor license (CSLB #605400, D24) for 35 years, with no open enforcement actions on record as of June 27, 2026, according to the California Contractors State License Board (CSLB).

Contractor record · CSLB #605400

Advantage Gutter Systems

D24 · Grass Valley, 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 #605400
Classification
D24
D24
Years licensed
35
since October 25, 1990
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 Advantage Gutter 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

BARNHART JOHN WILLIAMSole Owner

Workers’ compensation · CSLB

Workers' Compensation Insurance
Carrier
STATE COMPENSATION INSURANCE FUND
Policy
9220930
Effective
November 4, 2025
Expires
November 4, 2026

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 #605400 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 D24 covers

CSLB #605400 is classified D24. 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 Advantage Gutter Systems licensed in California?

Yes. As of June 27, 2026, the California Contractors State License Board (CSLB) lists Advantage Gutter Systems with an active contractor license, CSLB #605400 (classification D24), in a CLEAR status.

Is Advantage Gutter Systems insured?

As of June 27, 2026, the California Contractors State License Board (CSLB) shows an active workers'-compensation policy on file for CSLB #605400. This covers workers' comp; it does not by itself confirm general-liability coverage, which the CSLB does not track.

Does Advantage Gutter 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 #605400. The CSLB is the authoritative source for complaint history.

Who runs Advantage Gutter Systems?

The California Contractors State License Board (CSLB) lists Advantage Gutter Systems as a sole-owner or single-principal license (CSLB #605400). The named principal is shown in the personnel section below, as recorded by the CSLB.

Is Advantage Gutter Systems bonded?

As of June 27, 2026, the California Contractors State License Board (CSLB) shows an active contractor's bond on file for CSLB #605400. California requires a $25,000 contractor's bond; it protects against certain license-law violations, not a guarantee of work quality.

How long has Advantage Gutter Systems been licensed?

The California Contractors State License Board (CSLB) shows CSLB #605400 was first issued on October 25, 1990, about 35 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.