Public CSLB records

Bay City Mechanical Service INC, C-4 Boiler, Hot Water Heating and Steam Fitting Contractor in Richmond, CA

License #1149263·Corporation·Richmond, Contra Costa County
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Summary

Bay City Mechanical Service INC operating as a corporation holds an active California contractor license (CSLB #1149263), valid through Jan 31, 2028. It carries 4 CSLB classifications: C-4 Boiler, Hot Water Heating and Steam Fitting Contractor, C-20 HVAC Contractor, C-36 Plumbing Contractor, and C-43 Sheet Metal Contractor. Records show an active surety bond on file with Fidelity and Deposit Company of Maryland and active workers' compensation coverage from Continental Insurance Company (the). The business is based in Richmond, in Contra Costa County, California.

Business Information
Address
870 Harbour Way South
Richmond, CA 94804
License Details & Classifications
License Number
1149263
Issued
Jan 21, 2026
Status
CLEAR
Expires
Jan 31, 2028
Entity
Corporation
Financial & Insurance Coverage
Contractor Bond
Surety
Fidelity and Deposit Company of Maryland
Bond Number
9480529
Effective
Jan 21, 2026
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Continental Insurance Company (the)
Policy Number
7040136797
Effective
Oct 1, 2025
Expires
Oct 1, 2026
Newly Licensed

Recently licensed: the CSLB license is active and in good standing, issued within the last 2 years.

License StatusActive
Contractor BondOn file
Workers' CompensationActive

An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this

Frequently asked questions
Is Bay City Mechanical Service INC licensed in California?

Yes. Bay City Mechanical Service INC holds California Contractors State License Board license number 1149263, which is active and in good standing. The license was first issued on January 21, 2026. It is valid through January 31, 2028.

What does Bay City Mechanical Service INC specialize in?

Bay City Mechanical Service INC is licensed for 4 CSLB classifications: C-4 Boiler, Hot Water Heating and Steam Fitting Contractor, C-20 HVAC Contractor, C-36 Plumbing Contractor, and C-43 Sheet Metal Contractor.

Where is Bay City Mechanical Service INC headquartered?

Bay City Mechanical Service INC is headquartered at 870 Harbour Way South, Richmond, CA 94804, in Contra Costa County, California.

Does Bay City Mechanical Service INC have an active surety bond on file with CSLB?

Yes. Bay City Mechanical Service INC has an active California contractor surety bond filed with Fidelity and Deposit Company of Maryland.

Does Bay City Mechanical Service INC carry workers' compensation coverage?

Yes. Bay City Mechanical Service INC carries active workers' compensation coverage through Continental Insurance Company (the).

How do I verify Bay City Mechanical Service INC's contractor license?

You can verify Bay City Mechanical Service INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1149263.

Activity Timeline
  1. WC coverage startsOct 1, 2025
  2. License issuedJan 21, 2026
  3. Bond activeJan 21, 2026
  4. WC expiresOct 1, 2026
  5. License expiresJan 31, 2028
Other contractors in Contra Costa County
California lien & payment resources

Working a California job with Bay City Mechanical Service INC, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.

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