Public Record · California Contractor

Is Cornerstone Construction licensed, insured & complaint-free in California?

As of June 27, 2026, Cornerstone Construction holds an active California contractor license (CSLB #1083852), classification D24, and is recorded as workers'-comp exempt (no employees on file), with no open enforcement actions on record, according to the California Contractors State License Board (CSLB).

Contractor record · CSLB #1083852

Cornerstone Construction

D24 · Menlo Park, 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 #1083852
Classification
D24
D24
Years licensed
4
since November 19, 2021
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
All 2 classifications held
Registered business entity & contact
Dated certificate PDF — emailed with your receipt

Unlock every field above for Cornerstone Construction — 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

RUVALCABA JOSE MIGUELSole Owner · Responsible Managing Officer/Chief Executive Officer/President
RUVALCABA MIGUELOfficer
RUVALCABA BAILEYOfficer

Workers’ compensation · CSLB

Exempt
Effective
August 29, 2024

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 #1083852 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 D24 covers

CSLB #1083852 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 Cornerstone Construction licensed in California?

Yes. As of June 27, 2026, the California Contractors State License Board (CSLB) lists Cornerstone Construction with an active contractor license, CSLB #1083852 (classification D24), in a CLEAR status.

Is Cornerstone Construction insured?

The California Contractors State License Board (CSLB) records Cornerstone Construction 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 Cornerstone Construction 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 #1083852. The CSLB is the authoritative source for complaint history.

Who runs Cornerstone Construction?

The California Contractors State License Board (CSLB) lists 3 principals on record for CSLB #1083852, shown by name and title in the personnel section below.

Is Cornerstone Construction bonded?

As of June 27, 2026, the California Contractors State License Board (CSLB) shows an active contractor's bond on file for CSLB #1083852. California requires a $25,000 contractor's bond; it protects against certain license-law violations, not a guarantee of work quality.

How long has Cornerstone Construction been licensed?

The California Contractors State License Board (CSLB) shows CSLB #1083852 was first issued on November 19, 2021, about 4 years ago.

Get a free quote from a vetted contractor in Menlo Park.

Comparing options? We can connect you with a licensed, insured 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.