J W MCCLENAHAN CO
Plumbing Contractor license 308818 issued by the California Contractors State License Board. Status shown as of August 17, 2026.
This license is active. It is valid through November 30, 2027, 470 days from today, according to the most recent CSLB public file.
| License holder | J W MCCLENAHAN CO |
|---|---|
| Business name | J W MCCLENAHAN CO |
| License type | Plumbing Contractor |
| License number | 308818 |
| Status today | Active |
| Expiration date | November 30, 2027 |
| City | San Mateo |
| County of record | San Mateo |
| Phone on file | (650) 345 1691 |
| Classifications | C4, C20, C36, C42, C60 |
| Board status | CLEAR |
| Contractor bond | $25,000 |
| Issuing authority | California Contractors State License Board |
| First seen in public file | August 17, 2026 |
| Last confirmed | August 17, 2026 |
How to confirm this yourself
This page reproduces the CSLB public license file, which the agency republishes daily. Before you hire anyone, confirm the record at the source and ask the contractor for proof of insurance separately, since licensing and insurance are not the same thing and the state file does not cover insurance.
Verify at CSLB → File a complaint
There are 289 licensed plumbing contractors on record in San Mateo County. Compare them all →