Public CSLB records

Superior Plumbing & Drain Cleaning Services, C-36 Plumbing Contractor in Richmond, CA

License #915553·Corporation·Richmond, Contra Costa County
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Summary

Superior Plumbing & Drain Cleaning Services operating as a corporation holds an active California contractor license (CSLB #915553), valid through May 31, 2028. First issued in 2008, the license has been on the CSLB roster for 18 years. It carries 2 CSLB classifications: C-36 Plumbing Contractor and C-42 Sanitation System Contractor. Records show an active surety bond on file with Great American Insurance Company and a previously-filed workers' compensation policy with Markel Insurance Company that is no longer active. The business is based in Richmond, in Contra Costa County, California.

Business Information
Address
1000 13th Street
Richmond, CA 94801
License Details & Classifications
License Number
915553
Issued
May 12, 2008
Status
CLEAR
Expires
May 31, 2028
Entity
Corporation
Financial & Insurance Coverage
Contractor Bond
Surety
Great American Insurance Company
Bond Number
F484333
Effective
Mar 14, 2026
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Markel Insurance Company
Policy Number
MWC000811015
Effective
Jul 22, 2025
Expires
Jul 22, 2026
Alert

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

  • No active workers' comp on file
License StatusActive
Contractor BondOn file
Workers' CompensationInactive

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

Frequently asked questions
Is Superior Plumbing & Drain Cleaning Services licensed in California?

Yes. Superior Plumbing & Drain Cleaning Services holds California Contractors State License Board license number 915553, which is active and in good standing. The license was first issued on May 12, 2008. It is valid through May 31, 2028.

What does Superior Plumbing & Drain Cleaning Services specialize in?

Superior Plumbing & Drain Cleaning Services is licensed for 2 CSLB classifications: C-36 Plumbing Contractor and C-42 Sanitation System Contractor.

Where is Superior Plumbing & Drain Cleaning Services headquartered?

Superior Plumbing & Drain Cleaning Services is headquartered at 1000 13th Street, Richmond, CA 94801, in Contra Costa County, California.

Does Superior Plumbing & Drain Cleaning Services have an active surety bond on file with CSLB?

Yes. Superior Plumbing & Drain Cleaning Services has an active California contractor surety bond filed with Great American Insurance Company.

Does Superior Plumbing & Drain Cleaning Services carry workers' compensation coverage?

Superior Plumbing & Drain Cleaning Services has a previously-filed workers' compensation policy with Markel Insurance Company that is no longer active.

How do I verify Superior Plumbing & Drain Cleaning Services's contractor license?

You can verify Superior Plumbing & Drain Cleaning Services's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=915553.

Activity Timeline
  1. License issuedMay 12, 2008
  2. WC coverage startsJul 22, 2025
  3. Bond activeMar 14, 2026
  4. WC expiredJul 22, 2026
  5. License expiresMay 31, 2028
Other contractors in Contra Costa County
California lien & payment resources

Working a California job with Superior Plumbing & Drain Cleaning Services, 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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