Collins Mark Plumbing
Pittsburg · Contra Costa County · CA
VERIFIED
Bestopedia verdict
96
/ 100
Bestopedia Trust Score
California’s contractor board lists Collins Mark Plumbing in CLEAR standing. A contractor bond is on file, and workers’ compensation coverage is current.
- License standing
- 30 / 30
- Years licensed
- 19.6 / 20
- Contractor bond
- 20 / 20
- Workers' comp
- 16 / 20
- Business structure
- 10 / 10
The verified record
- CSLB license
- #887634 verify on CSLB ↗
- Classifications
- C-36
- Years licensed
- 19.6 years since 11/27/2006
- Contractor bond
- $25,000 WESTERN SURETY COMPANY
- Workers’ comp
- Current
- Business type
- Sole Owner
- Qualifying principal
- Mark Edward Collins
- Address of record
- 3395 Crectview Dr, Pittsburg, CA 94565
Frequently Asked Questions
Is Collins Mark Plumbing a licensed Plumbing contractor in California?
Yes. Collins Mark Plumbing holds California CSLB contractor license #887634 with a C-36 (Plumbing) classification. Current CSLB status: CLEAR.
What work is Collins Mark Plumbing licensed to perform?
License #887634 carries C-36 (Plumbing).
Is Collins Mark Plumbing bonded?
Yes. Collins Mark Plumbing carries contractor's bond #66879956 for $25,000 through WESTERN SURETY COMPANY.
Does Collins Mark Plumbing carry workers' compensation insurance?
Workers' compensation status on file: Exempt.
How long has Collins Mark Plumbing held its contractor license?
License #887634 was originally issued on 11/27/2006, approximately 20 years ago (as of July 2026).
Where is Collins Mark Plumbing located?
Collins Mark Plumbing is based in Pittsburg, Contra Costa County, CA 94565.