# Hetherington Mechanical & Plumbing

Hetherington Mechanical & Plumbing is a fire sprinkler company based in San Francisco, California. It holds an active CSLB C-16 Fire Protection Contractor license (No. 664033) from the California Contractors State License Board, verified against state records on October 24, 2026.

## California Contractors State License Board licenses

| License | Type | Expires | Status |
|---|---|---|---|
| 664033 | CSLB C-16 Fire Protection Contractor | February 28, 2027 | active |

## Contact and locations

- Phone: 415-750-9595
- Primary location: 4200 California Street Ste 111, San Francisco, CA 94118 (San Francisco County)
- Also known as: Earthquake Enterprises Inc

## Verify

Search 664033 at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx to confirm current status.

More companies in San Francisco: https://plumbregistry.com/fire-protection/california/san-francisco/

_Source: California Contractors State License Board (CSLB) licensee records (https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx), retrieved October 24, 2026. Published by Plumb Registry._