Bay City Mechanical Service Inc

Richmond · Contra Costa County · CA

VERIFIED

Bestopedia verdict

80 / 100 Bestopedia Trust Score

California’s contractor board lists Bay City Mechanical Service Inc in CLEAR standing. A contractor bond is on file, and workers’ compensation coverage is current.

License standing
30 / 30
Years licensed
0.4 / 20
Contractor bond
20 / 20
Workers' comp
20 / 20
Business structure
10 / 10

How the Trust Score is calculated →

The verified record

CSLB license
#1149263 verify on CSLB ↗
Classifications
C-4, C-20, C-36, C-43
Years licensed
0.4 years since 01/21/2026
Contractor bond
$25,000 FIDELITY AND DEPOSIT COMPANY OF MARYLAND
Workers’ comp
Current CONTINENTAL INSURANCE COMPANY (THE)
Business type
Corporation
Qualifying principal
Helge Theiss-nyland
Address of record
870 Harbour Way South, Richmond, CA 94804

Frequently Asked Questions

Is Bay City Mechanical Service Inc a licensed HVAC contractor in California?

Yes. Bay City Mechanical Service Inc holds California CSLB contractor license #1149263 with a C-20 (Warm-Air Heating, Ventilating and Air-Conditioning) classification. Current CSLB status: CLEAR.

What work is Bay City Mechanical Service Inc licensed to perform?

License #1149263 carries C-20 (Warm-Air Heating, Ventilating and Air-Conditioning), plus additional classifications: C-4, C36, C43.

Is Bay City Mechanical Service Inc bonded?

Yes. Bay City Mechanical Service Inc carries contractor's bond #9480529 for $25,000 through FIDELITY AND DEPOSIT COMPANY OF MARYLAND.

Does Bay City Mechanical Service Inc carry workers' compensation insurance?

Yes. Workers' compensation insurance is on file with CONTINENTAL INSURANCE COMPANY (THE), with a policy expiration of 10/01/2026.

How long has Bay City Mechanical Service Inc held its contractor license?

License #1149263 was originally issued on 01/21/2026, approximately 0 years ago (as of July 2026).

Where is Bay City Mechanical Service Inc located?

Bay City Mechanical Service Inc is based in Richmond, Contra Costa County, CA 94804.