Proficient Plumbing

Chino Hills · San Bernardino County · CA

VERIFIED

Bestopedia verdict

96 / 100 Bestopedia Trust Score

California’s contractor board lists Proficient Plumbing in CLEAR standing. A contractor bond is on file, and workers’ compensation coverage is current.

License standing
30 / 30
Years licensed
20 / 20
Contractor bond
20 / 20
Workers' comp
16 / 20
Business structure
10 / 10

How the Trust Score is calculated →

The verified record

CSLB license
#490044 verify on CSLB ↗
Classifications
C-36
Years licensed
40.2 years since 04/17/1986
Contractor bond
$25,000 AMERICAN CONTRACTORS INDEMNITY COMPANY
Workers’ comp
Current
Business type
Sole Owner
Qualifying principal
Roy Duran Coon
Address of record
3125 Oakcreek Road, Chino Hills, CA 91709

Frequently Asked Questions

Is Proficient Plumbing a licensed Plumbing contractor in California?

Yes. Proficient Plumbing holds California CSLB contractor license #490044 with a C-36 (Plumbing) classification. Current CSLB status: CLEAR.

What work is Proficient Plumbing licensed to perform?

License #490044 carries C-36 (Plumbing).

Is Proficient Plumbing bonded?

Yes. Proficient Plumbing carries contractor's bond #100979201 for $25,000 through AMERICAN CONTRACTORS INDEMNITY COMPANY.

Does Proficient Plumbing carry workers' compensation insurance?

Workers' compensation status on file: Exempt.

How long has Proficient Plumbing held its contractor license?

License #490044 was originally issued on 04/17/1986, approximately 40 years ago (as of July 2026).

Where is Proficient Plumbing located?

Proficient Plumbing is based in Chino Hills, San Bernardino County, CA 91709.