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Best Licensed Septic Contractors in Paso Robles, CA

3 septic companies registered in Paso Robles hold current CSLB licenses, verified against official records as of August 17, 2026. All 3 are listed below, ordered by workers' compensation cover and years licensed.

How we chose: We identified 3 companies registered in Paso Robles. 3 passed license verification. All 3 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.Alliance Septic

    ✓ CSLB License #1009043 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2015
    Phone
    (805) 221-5493

  2. 2.Muniz Excavating Inc.

    ✓ CSLB License #951129 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2010
    Phone
    (805) 550-6317

  3. 3.North County Septic Service Inc.

    ✓ CSLB License #983162 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2013
    Phone
    (805) 239-3838

Compare the top 3 at a glance

CompanyLicenseWorkers' compLicensed since
Alliance Septic#1009043On file2015
Muniz Excavating Inc.#951129Exempt or none on file2010
North County Septic Service Inc.#983162Exempt or none on file2013

San Luis Obispo County septic licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 12 active C-42 sanitation system licenses in San Luis Obispo County, 3 of them registered in Paso Robles. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Paso Robles license has been held 13 years, and the longest-standing one dates to 2010. 1 of Paso Robles's 3 licenses (33.3%) 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: 12 of the county's 12 licenses carry the same $25,000 bond California sets by statute. 1 county license reaches its 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 Paso Robles: common questions

How many licensed septic contractors are there in Paso Robles?

3 active C-42 sanitation system licenses are registered in Paso Robles, out of 12 across San Luis Obispo County. 3 Paso Robles-registered companies passed our license verification, and all 3 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. 3 active C-42 sanitation system licenses are registered in Paso Robles and 12 across San Luis Obispo County, the longest-standing issued in 2010. 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 Paso Robles's 3 currently carry. 1 San Luis Obispo County license expires within 90 days.

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