Black Diamond Waterproofing
Lake Forest · Orange County · CA
VERIFIED
Bestopedia verdict
California’s contractor board lists Black Diamond Waterproofing in CLEAR standing. A contractor bond is on file, and workers’ compensation coverage is current.
- License standing
- 30 / 30
- Years licensed
- 11 / 20
- Contractor bond
- 20 / 20
- Workers' comp
- 20 / 20
- Business structure
- 10 / 10
The verified record
- CSLB license
- #1005043 verify on CSLB ↗
- Classifications
- C-39
- Years licensed
- 11.0 years since 06/30/2015
- Contractor bond
- $25,000 AMERICAN CONTRACTORS INDEMNITY COMPANY
- Workers’ comp
- Current ENDURANCE ASSURANCE CORPORATION
- Business type
- Corporation
- Qualifying principal
- Stephen Paul Zens
- Address of record
- 22365 El Toro Road178, Lake Forest, CA 92630
Frequently Asked Questions
Is Black Diamond Waterproofing a licensed Roofing contractor in California?
Yes. Black Diamond Waterproofing holds California CSLB contractor license #1005043 with a C-39 (Roofing) classification. Current CSLB status: CLEAR.
What work is Black Diamond Waterproofing licensed to perform?
License #1005043 carries C-39 (Roofing).
Is Black Diamond Waterproofing bonded?
Yes. Black Diamond Waterproofing carries contractor's bond #100753679 for $25,000 through AMERICAN CONTRACTORS INDEMNITY COMPANY.
Does Black Diamond Waterproofing carry workers' compensation insurance?
Yes. Workers' compensation insurance is on file with ENDURANCE ASSURANCE CORPORATION, with a policy expiration of 08/10/2026.
How long has Black Diamond Waterproofing held its contractor license?
License #1005043 was originally issued on 06/30/2015, approximately 11 years ago (as of July 2026).
Where is Black Diamond Waterproofing located?
Black Diamond Waterproofing is based in Lake Forest, Orange County, CA 92630.