Public Record · California Contractor

Is Black Diamond Heating And Air Conditioning INC licensed, insured & complaint-free in California?

As of October 7, 2026, Black Diamond Heating And Air Conditioning INC's California contractor license (CSLB #931418, classification C-4) carries the status "Contr Bond Susp", according to the California Contractors State License Board (CSLB).

Contractor record · CSLB #931418

Black Diamond Heating And Air Conditioning INC

C-4 · Oakley, 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 a contractor's bond issue.

As of October 7, 2026CSLB code: Contr Bond SuspVerify on CSLB
License #
CSLB #931418
Classification
C-4
C-4
Years licensed
17
since April 16, 2009
Contractor's bond
Lapsed
$25,000
The full dossierRedacted preview
Bond surety — who 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
All 4 classifications held
Registered business entity & contact
Dated certificate PDF — emailed with your receipt

Unlock every field above for Black Diamond Heating And Air Conditioning INC — 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.

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Principals on record · CSLB

BROWN MICHAEL JOHNResponsible Managing Officer/Chief Executive Officer/President
BROWN RONNETTE MARIEOfficer

Workers’ compensation · CSLB

Workers' Compensation Insurance
Carrier
MARKEL AMERICAN INSURANCE COMPANY
Policy
MWC0006393
Effective
July 15, 2026
Expires
July 15, 2027

What this record means

What "Contr Bond Susp" means

A bond-related suspension means the CSLB records an issue with a required bond on file. The license is not in good standing until it is resolved. The CSLB record shows the current detail and any path to reinstatement.

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 #931418 on the official CSLB site. This page is current as of October 7, 2026; the CSLB record is updated continuously.

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 C-4 covers

CSLB #931418 is classified C-4. 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 Black Diamond Heating And Air Conditioning INC licensed in California?

The California Contractors State License Board (CSLB) lists Black Diamond Heating And Air Conditioning INC's license, CSLB #931418, with the status "Contr Bond Susp" as of October 7, 2026. A non-CLEAR status means the license is not in good standing; check the official CSLB record for the current detail.

Is Black Diamond Heating And Air Conditioning INC insured?

As of October 7, 2026, the California Contractors State License Board (CSLB) shows an active workers'-compensation policy on file for CSLB #931418. This covers workers' comp; it does not by itself confirm general-liability coverage, which the CSLB does not track.

Does Black Diamond Heating And Air Conditioning INC have complaints or violations?

As of October 7, 2026, the California Contractors State License Board (CSLB) lists CSLB #931418 with the status "Contr Bond Susp". The details, including any underlying citation or judgment, are on the official CSLB record.

Who runs Black Diamond Heating And Air Conditioning INC?

The California Contractors State License Board (CSLB) lists 2 principals on record for CSLB #931418, shown by name and title in the personnel section below.

Is Black Diamond Heating And Air Conditioning INC bonded?

The California Contractors State License Board (CSLB) shows the contractor's bond for CSLB #931418 as lapsed or cancelled as of October 7, 2026. Verify the current bond status on the official CSLB record.

How long has Black Diamond Heating And Air Conditioning INC been licensed?

The California Contractors State License Board (CSLB) shows CSLB #931418 was first issued on April 16, 2009, about 17 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 October 7, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.