Public CSLB records

Guerra Bros Plumbing INC

License #802256·Corporation·Concord, Contra Costa County
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Summary

Guerra Bros Plumbing INC operating as a corporation is licensed in California under CSLB number 802256. The license was first issued in 2001, putting the business at 25 years on the active CSLB roster. It carries 3 CSLB classifications: A General Engineering Contractor, C-36 Plumbing Contractor, and C-42 Sanitation System Contractor. Records show a previously-filed surety bond from Merchants Bonding Company (mutual) that is no longer active and active workers' compensation coverage from Amtrust Insurance Company. The business is based in Concord, in Contra Costa County, California.

Business Information
Address
100 Medburn St Ste B
Concord, CA 94520
License Details & Classifications
License Number
802256
Issued
Dec 13, 2001
Status
CLEAR
Expires
Jan 31, 2027
Entity
Corporation
Financial & Insurance Coverage
Contractor Bond
Surety
Merchants Bonding Company (mutual)
Bond Number
101716144
Effective
Feb 4, 2026
Status
Cancelled
Cancelled
May 21, 2026
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Amtrust Insurance Company
Policy Number
KWC1402484
Effective
Aug 6, 2025
Expires
Aug 6, 2026
Alert

This contractor has a compliance issue in its public CSLB record:

  • Contractor bond cancelled
License StatusActive
Contractor BondCancelled
Workers' CompensationActive

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

Frequently asked questions
Is Guerra Bros Plumbing INC licensed in California?

Yes. Guerra Bros Plumbing INC holds California Contractors State License Board license number 802256. The license was first issued on December 13, 2001. It is valid through January 31, 2027.

What does Guerra Bros Plumbing INC specialize in?

Guerra Bros Plumbing INC is licensed for 3 CSLB classifications: A General Engineering Contractor, C-36 Plumbing Contractor, and C-42 Sanitation System Contractor.

Where is Guerra Bros Plumbing INC headquartered?

Guerra Bros Plumbing INC is headquartered at 100 Medburn St Ste B, Concord, CA 94520, in Contra Costa County, California.

Does Guerra Bros Plumbing INC have an active surety bond on file with CSLB?

Guerra Bros Plumbing INC has a previously-filed surety bond from Merchants Bonding Company (mutual) that is no longer active.

Does Guerra Bros Plumbing INC carry workers' compensation coverage?

Yes. Guerra Bros Plumbing INC carries active workers' compensation coverage through Amtrust Insurance Company.

How do I verify Guerra Bros Plumbing INC's contractor license?

You can verify Guerra Bros Plumbing INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=802256.

Activity Timeline
  1. License issuedDec 13, 2001
  2. WC coverage startsAug 6, 2025
  3. Bond activeFeb 4, 2026
  4. Bond cancelledMay 21, 2026
  5. WC expiresAug 6, 2026
  6. License expiresJan 31, 2027
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