Diamond Air Services Inc
Ontario · San Bernardino County · CA
VERIFIED
Bestopedia verdict
California’s contractor board lists Diamond Air Services Inc in CLEAR standing. A contractor bond is on file, and workers’ compensation coverage is current.
- License standing
- 30 / 30
- Years licensed
- 7.6 / 20
- Contractor bond
- 20 / 20
- Workers' comp
- 20 / 20
- Business structure
- 10 / 10
The verified record
- CSLB license
- #1047483 verify on CSLB ↗
- Classifications
- B, C-20, C-43
- Years licensed
- 7.6 years since 12/04/2018
- Contractor bond
- $25,000 BUSINESS ALLIANCE INSURANCE COMPANY
- Workers’ comp
- Current NORGUARD INSURANCE COMPANY
- Business type
- Corporation
- Qualifying principal
- Hau Truong Vo
- Address of record
- 1630 E Francis St Ste C, Ontario, CA 91761
Frequently Asked Questions
Is Diamond Air Services Inc a licensed HVAC contractor in California?
Yes. Diamond Air Services Inc holds California CSLB contractor license #1047483 with a C-20 (Warm-Air Heating, Ventilating and Air-Conditioning) classification. Current CSLB status: CLEAR.
What work is Diamond Air Services Inc licensed to perform?
License #1047483 carries C-20 (Warm-Air Heating, Ventilating and Air-Conditioning), plus additional classifications: B, C43.
Is Diamond Air Services Inc bonded?
Yes. Diamond Air Services Inc carries contractor's bond #G100923176001 for $25,000 through BUSINESS ALLIANCE INSURANCE COMPANY.
Does Diamond Air Services Inc carry workers' compensation insurance?
Yes. Workers' compensation insurance is on file with NORGUARD INSURANCE COMPANY, with a policy expiration of 09/05/2026.
How long has Diamond Air Services Inc held its contractor license?
License #1047483 was originally issued on 12/04/2018, approximately 8 years ago (as of July 2026).
Where is Diamond Air Services Inc located?
Diamond Air Services Inc is based in Ontario, San Bernardino County, CA 91761.