Clear

BAY CITY MECHANICAL SERVICE INC

License #1149263RichmondCorporationLicensed since January 21, 2026

License

Status
CLEAR
First issued
January 21, 2026
Expires
January 31, 2028
Entity
Corporation
Address of record
870 HARBOUR WAY SOUTH, Richmond, CA 94804
Phone of record
(510) 233 7000

Contractor bond

Surety
FIDELITY AND DEPOSIT COMPANY OF MARYLAND
Bond number
9480529
Amount
$25,000
Effective
January 21, 2026

Workers’ compensation

Carrier
CONTINENTAL INSURANCE COMPANY (THE)
Policy number
7040136797
Effective
October 1, 2025
Expires
October 1, 2026

Are they licensed for your job?

A California contractor may only contract for work their classification covers. Pick the job and this reads the license on file against it.

Licensed to perform

A contractor may only contract for work within their classifications. See all 16 licensed warm-air heating, ventilating and air-conditioning contractors in Richmond.

People on this license

NameTitleSinceThrough
AMOS BOBBIEOfficerJanuary 21, 2026Current
THEISS-NYLAND HELGEResponsible Managing Officer/Chief Executive Officer/PresidentJanuary 21, 2026Current

Verified status badge

Put this on your website or in a bid packet. It reads the state’s record live every time someone loads it, so it is never a screenshot of a good day. Free, and you don’t need to claim this listing to use it.

BAY CITY MECHANICAL SERVICE INC — California contractor license #1149263 status, verified against CSLB records
<a href="https://bookofbuilders.com/license/1149263" target="_blank" rel="noopener">
  <img src="https://bookofbuilders.com/badge/1149263.svg" alt="BAY CITY MECHANICAL SERVICE INC — California contractor license #1149263 status, verified against CSLB records" width="268" height="76">
</a>

The badge shows whatever the CSLB record says — including a suspension or lapsed coverage. There is no paid version and no way to change what it displays. That is what makes it worth showing. The same data as JSON if you’d rather build your own.

Is this your license?

Claim this page to add your photos, description, service area and contact details. The state’s record above stays exactly as it is — claiming adds to a page, it never edits or hides anything the CSLB reports.

Source: California Contractors State License Board public records. Coverage lapse is evaluated against today’s date; all other fields reflect the latest weekly CSLB file. Confirm at the CSLB’s official record before signing a contract.