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Best Licensed Septic Contractors in San Diego, CA

4 septic companies registered in San Diego hold current CSLB licenses, verified against official records as of August 17, 2026. All 4 are listed below, ordered by workers' compensation cover and years licensed.

How we chose: We identified 4 companies registered in San Diego. 4 passed license verification. All 4 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.A O Reed & Co LLC

    ✓ CSLB License #7731 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1931
    Phone
    (858) 565-4131

  2. 2.Akae Builder

    ✓ CSLB License #1008370 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2015
    Phone
    (619) 737-4747

  3. 3.Troy Plumbing And Repairs Inc.

    ✓ CSLB License #1047611 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2018
    Phone
    (619) 379-6055

  4. 4.San Diego Backflow Testing

    ✓ CSLB License #1054091 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2019
    Phone
    (619) 666-5439

Compare the top 4 at a glance

CompanyLicenseWorkers' compLicensed since
A O Reed & Co LLC#7731On file1931
Akae Builder#1008370On file2015
Troy Plumbing And Repairs Inc.#1047611On file2018
San Diego Backflow Testing#1054091On file2019

San Diego County septic licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 36 active C-42 sanitation system licenses in San Diego County, 4 of them registered in San Diego. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median San Diego license has been held 7 years, and the longest-standing one dates to 1931. 4 of San Diego's 4 licenses (100.0%) carry 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: 36 of the county's 36 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 San Diego: common questions

How many licensed septic contractors are there in San Diego?

4 active C-42 sanitation system licenses are registered in San Diego, out of 36 across San Diego County. 4 San Diego-registered companies passed our license verification, and all 4 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. 4 active C-42 sanitation system licenses are registered in San Diego and 36 across San Diego County, the longest-standing issued in 1931. 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 4 of San Diego's 4 currently carry. 3 San Diego County licenses expire within 90 days.

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