Public Record · California Contractor

Is R & R Plumbing Works licensed, insured & complaint-free in California?

R & R Plumbing Works has held an active California contractor license (CSLB #647650, C36) for 34 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 #647650

R & R Plumbing Works

Plumbing (C-36) · 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 #647650
Classification
C36
Plumbing (C-36)
Years licensed
34
since June 13, 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 “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 R & R Plumbing Works — 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

MOSBARGER RANDY LEESole Owner

Workers’ compensation · CSLB

Exempt
Effective
May 14, 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 #647650 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 "workers'-comp exempt" means

A contractor with no employees can file a workers'-comp exemption with the CSLB. It is a normal, filed status — not a lapse — but it means there may be no workers'-comp coverage if the contractor brings on help. Confirm coverage before work that involves a crew.

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 #647650 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 R & R Plumbing Works licensed in California?

Yes. As of June 27, 2026, the California Contractors State License Board (CSLB) lists R & R Plumbing Works with an active contractor license, CSLB #647650 (classification C36), in a CLEAR status.

Is R & R Plumbing Works insured?

The California Contractors State License Board (CSLB) records R & R Plumbing Works as workers'-comp exempt as of June 27, 2026 — typically a sole owner with no employees. An exemption is a filed declaration, not a lapse.

Does R & R Plumbing Works 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 #647650. The CSLB is the authoritative source for complaint history.

Who runs R & R Plumbing Works?

The California Contractors State License Board (CSLB) lists R & R Plumbing Works as a sole-owner or single-principal license (CSLB #647650). The named principal is shown in the personnel section below, as recorded by the CSLB.

Is R & R Plumbing Works bonded?

As of June 27, 2026, the California Contractors State License Board (CSLB) shows an active contractor's bond on file for CSLB #647650. California requires a $25,000 contractor's bond; it protects against certain license-law violations, not a guarantee of work quality.

How long has R & R Plumbing Works been licensed?

The California Contractors State License Board (CSLB) shows CSLB #647650 was first issued on June 13, 1992, about 34 years ago.

Get a free quote from a vetted plumbing contractor in Grass Valley.

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.