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Best Licensed Septic Contractors in Antioch, CA

5 septic companies registered in Antioch hold current CSLB licenses, verified against official records as of August 17, 2026. All 5 are listed below, ordered by workers' compensation cover and years licensed.

How we chose: We identified 5 companies registered in Antioch. 5 passed license verification. All 5 are listed below. Our methodology

We earn a fee when you call businesses through numbers on this site. This never affects who is listed or how they rank.

  1. 1.Service Pros Plumbers Inc.

    ✓ CSLB License #979455 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2012
    Phone
    (925) 753-5600

  2. 2.Royal Rooter

    ✓ CSLB License #862460 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2005
    Phone
    (925) 595-0397

  3. 3.Drainman Pro Inc.

    ✓ CSLB License #881542 - look up this number at CSLB
    Verified
    August 20, 2026
    Licensed since
    2006
    Phone
    (925) 688-2365

  4. 4.In Demand Plumbing Heating & Air Inc.

    ✓ CSLB License #943549 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2010
    Phone
    (925) 757-7000

  5. 5.Drain Doctors And Plumbers

    ✓ CSLB License #944651 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2010
    Phone
    (925) 778-8448

Compare the top 5 at a glance

CompanyLicenseWorkers' compLicensed since
Service Pros Plumbers Inc.#979455On file2012
Royal Rooter#862460Exempt or none on file2005
Drainman Pro Inc.#881542Exempt or none on file2006
In Demand Plumbing Heating & Air Inc.#943549Exempt or none on file2010
Drain Doctors And Plumbers#944651Exempt or none on file2010

Contra Costa County septic licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 44 active C-42 sanitation system licenses in Contra Costa County, 5 of them registered in Antioch. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Antioch license has been held 16 years, and the longest-standing one dates to 2005. 1 of Antioch's 5 licenses (20.0%) carries current workers' compensation cover in CSLB's file. That is employee injury cover, not liability insurance, and a blank usually means an owner-operator with no employees - lawful, and not a mark against anyone. The contractor bond is not a signal here: 44 of the county's 44 licenses carry the same $25,000 bond California sets by statute. 3 county licenses reach their expiration date within the next 90 days. CSLB cannot link straight to a license record, so every listing above shows its number for you to type into CSLB's license lookup. How we verify.

Septic Contractors in Antioch: common questions

How many licensed septic contractors are there in Antioch?

5 active C-42 sanitation system licenses are registered in Antioch, out of 44 across Contra Costa County. 5 Antioch-registered companies passed our license verification, and all 5 are listed on this page. Only licenses CSLB shows as CLEAR and unexpired are listed.

Does California license septic contractors?

Yes. California licenses contractors by classification, and C-42 is the CSLB classification that authorises this work. 5 active C-42 sanitation system licenses are registered in Antioch and 44 across Contra Costa County, the longest-standing issued in 2005. Only CLEAR, unexpired licenses appear here.

How do I check a septic contractor's license in California?

Every listing above shows its CSLB license number. CSLB cannot link straight to a record, so open its license lookup and type the number in: it shows status, expiration, the contractor bond and workers' compensation cover, which 1 of Antioch's 5 currently carry. 3 Contra Costa County licenses expire within 90 days.

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