Know How Plumbing
Upland · San Bernardino County · CA
VERIFIED
Bestopedia verdict
83
/ 100
Bestopedia Trust Score
California’s contractor board lists Know How Plumbing in CLEAR standing. A contractor bond is on file, and workers’ compensation coverage is current.
- License standing
- 30 / 30
- Years licensed
- 7.2 / 20
- Contractor bond
- 20 / 20
- Workers' comp
- 16 / 20
- Business structure
- 10 / 10
The verified record
- CSLB license
- #1052689 verify on CSLB ↗
- Classifications
- C-36
- Years licensed
- 7.2 years since 04/22/2019
- Contractor bond
- $25,000 JET INSURANCE COMPANY
- Workers’ comp
- Current
- Business type
- Sole Owner
- Qualifying principal
- Elijah Gregory Elizarraraz
- Address of record
- 905 Sycamore Ct Unit C, Upland, CA 91786
Frequently Asked Questions
Is Know How Plumbing a licensed Plumbing contractor in California?
Yes. Know How Plumbing holds California CSLB contractor license #1052689 with a C-36 (Plumbing) classification. Current CSLB status: CLEAR.
What work is Know How Plumbing licensed to perform?
License #1052689 carries C-36 (Plumbing).
Is Know How Plumbing bonded?
Yes. Know How Plumbing carries contractor's bond #JT030102 for $25,000 through JET INSURANCE COMPANY.
Does Know How Plumbing carry workers' compensation insurance?
Workers' compensation status on file: Exempt.
How long has Know How Plumbing held its contractor license?
License #1052689 was originally issued on 04/22/2019, approximately 7 years ago (as of July 2026).
Where is Know How Plumbing located?
Know How Plumbing is based in Upland, San Bernardino County, CA 91786.