Public CSLB records

Bayline Mechanical INC, C-36 Plumbing Contractor in S San Francisco, CA

License #342012·Corporation·S San Francisco, San Mateo County
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Summary

Bayline Mechanical INC operating as a corporation holds an active California contractor license (CSLB #342012), valid through Apr 30, 2028. First issued in 1977, the license has been on the CSLB roster for 49 years. It carries a single CSLB classification: C-36 — Plumbing Contractor. Records show an active surety bond on file with Harco National Insurance Company and active workers' compensation coverage from Continental Insurance Company (the). The business is based in S San Francisco, in San Mateo County, California.

Business Information
Address
310 Shaw Road Suite B
S San Francisco, CA 940806615
License Details & Classifications
License Number
342012
Issued
Aug 8, 1977
Status
CLEAR
Expires
Apr 30, 2028
Entity
Corporation
Financial & Insurance Coverage
Contractor Bond
Surety
Harco National Insurance Company
Bond Number
0757784
Effective
Jan 1, 2023
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Continental Insurance Company (the)
Policy Number
584922344
Effective
Oct 1, 2025
Expires
Oct 1, 2026
Verified

This contractor is verified, with no adverse conditions in the current CSLB record.

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 Bayline Mechanical INC licensed in California?

Yes. Bayline Mechanical INC holds California Contractors State License Board license number 342012, which is active and in good standing. The license was first issued on August 8, 1977. It is valid through April 30, 2028.

What does Bayline Mechanical INC specialize in?

Bayline Mechanical INC is licensed for one CSLB classification: C-36 Plumbing Contractor.

Where is Bayline Mechanical INC headquartered?

Bayline Mechanical INC is headquartered at 310 Shaw Road Suite B, S San Francisco, CA 940806615, in San Mateo County, California.

Does Bayline Mechanical INC have an active surety bond on file with CSLB?

Yes. Bayline Mechanical INC has an active California contractor surety bond filed with Harco National Insurance Company.

Does Bayline Mechanical INC carry workers' compensation coverage?

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

How do I verify Bayline Mechanical INC's contractor license?

You can verify Bayline Mechanical INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=342012.

Activity Timeline
  1. License issuedAug 8, 1977
  2. Bond activeJan 1, 2023
  3. WC coverage startsOct 1, 2025
  4. WC expiresOct 1, 2026
  5. License expiresApr 30, 2028
Other contractors in San Mateo County
California lien & payment resources

Working a California job with Bayline Mechanical 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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