Principal Plumbing Co
San Diego · San Diego County · CA
VERIFIED
Bestopedia verdict
California’s contractor board lists Principal Plumbing Co in CLEAR standing. A contractor bond is on file, and workers’ compensation coverage is current.
- License standing
- 30 / 30
- Years licensed
- 8 / 20
- Contractor bond
- 20 / 20
- Workers' comp
- 20 / 20
- Business structure
- 10 / 10
The verified record
- CSLB license
- #1042055 verify on CSLB ↗
- Classifications
- C-20, C-36
- Years licensed
- 8.0 years since 07/19/2018
- Contractor bond
- $25,000 MERCHANTS BONDING COMPANY (MUTUAL)
- Workers’ comp
- Current CLEAR SPRING PROPERTY AND CASUALTY COMPANY
- Business type
- Sole Owner
- Qualifying principal
- Newton Thien Nguyen
- Address of record
- 9374 Black Hills Way, San Diego, CA 92129
Frequently Asked Questions
Is Principal Plumbing Co a licensed HVAC contractor in California?
Yes. Principal Plumbing Co holds California CSLB contractor license #1042055 with a C-20 (Warm-Air Heating, Ventilating and Air-Conditioning) classification. Current CSLB status: CLEAR.
What work is Principal Plumbing Co licensed to perform?
License #1042055 carries C-20 (Warm-Air Heating, Ventilating and Air-Conditioning), plus additional classifications: C36.
Is Principal Plumbing Co bonded?
Yes. Principal Plumbing Co carries contractor's bond #100359406 for $25,000 through MERCHANTS BONDING COMPANY (MUTUAL).
Does Principal Plumbing Co carry workers' compensation insurance?
Yes. Workers' compensation insurance is on file with CLEAR SPRING PROPERTY AND CASUALTY COMPANY, with a policy expiration of 07/25/2026.
How long has Principal Plumbing Co held its contractor license?
License #1042055 was originally issued on 07/19/2018, approximately 8 years ago (as of July 2026).
Where is Principal Plumbing Co located?
Principal Plumbing Co is based in San Diego, San Diego County, CA 92129.