Black Diamond Heating and Air Conditioning Inc
Oakley · Contra Costa County · CA
VERIFIED
Bestopedia verdict
California’s contractor board lists Black Diamond Heating and Air Conditioning Inc in CLEAR standing. A contractor bond is on file, and workers’ compensation coverage is current.
- License standing
- 30 / 30
- Years licensed
- 17.2 / 20
- Contractor bond
- 20 / 20
- Workers' comp
- 20 / 20
- Business structure
- 10 / 10
The verified record
- CSLB license
- #931418 verify on CSLB ↗
- Classifications
- C-4, C-20, C-38, C-43
- Years licensed
- 17.2 years since 04/16/2009
- Contractor bond
- $25,000 AMERICAN CONTRACTORS INDEMNITY COMPANY
- Workers’ comp
- Current MARKEL INSURANCE COMPANY
- Business type
- Corporation
- Qualifying principal
- Michael John Brown
- Address of record
- 2063 Main St #425, Oakley, CA 94561
Frequently Asked Questions
Is Black Diamond Heating and Air Conditioning Inc a licensed HVAC contractor in California?
Yes. Black Diamond Heating and Air Conditioning Inc holds California CSLB contractor license #931418 with a C-20 (Warm-Air Heating, Ventilating and Air-Conditioning) classification. Current CSLB status: CLEAR.
What work is Black Diamond Heating and Air Conditioning Inc licensed to perform?
License #931418 carries C-20 (Warm-Air Heating, Ventilating and Air-Conditioning), plus additional classifications: C-4, C38, C43.
Is Black Diamond Heating and Air Conditioning Inc bonded?
Yes. Black Diamond Heating and Air Conditioning Inc carries contractor's bond #100067974 for $25,000 through AMERICAN CONTRACTORS INDEMNITY COMPANY.
Does Black Diamond Heating and Air Conditioning Inc carry workers' compensation insurance?
Yes. Workers' compensation insurance is on file with MARKEL INSURANCE COMPANY, with a policy expiration of 07/15/2026.
How long has Black Diamond Heating and Air Conditioning Inc held its contractor license?
License #931418 was originally issued on 04/16/2009, approximately 17 years ago (as of July 2026).
Where is Black Diamond Heating and Air Conditioning Inc located?
Black Diamond Heating and Air Conditioning Inc is based in Oakley, Contra Costa County, CA 94561.