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Best Licensed Septic Contractors in Corona, CA

4 septic companies registered in Corona 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 Corona. 4 passed license verification. All 4 are listed below. Our methodology

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  1. 1.Manhole Builders West

    ✓ CSLB License #831892 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2004
    Phone
    (951) 681-0601

  2. 2.Henley's Plumbing & Air

    ✓ CSLB License #776658 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2000
    Phone
    (909) 883-8827

  3. 3.A M C Septic Contractors Inc.

    ✓ CSLB License #982636 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2013
    Phone
    (909) 721-2982

  4. 4.Reliable Septic

    ✓ CSLB License #1081510 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2021
    Phone
    (951) 231-0590

Compare the top 4 at a glance

CompanyLicenseWorkers' compLicensed since
Manhole Builders West#831892On file2004
Henley's Plumbing & Air#776658Exempt or none on file2000
A M C Septic Contractors Inc.#982636Exempt or none on file2013
Reliable Septic#1081510Exempt or none on file2021

Riverside County septic licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 73 active C-42 sanitation system licenses in Riverside County, 5 of them registered in Corona. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Corona license has been held 13 years, and the longest-standing one dates to 2000. 2 of Corona's 5 licenses (40.0%) 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: 73 of the county's 73 licenses carry the same $25,000 bond California sets by statute. 8 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 Corona: common questions

How many licensed septic contractors are there in Corona?

5 active C-42 sanitation system licenses are registered in Corona, out of 73 across Riverside County. 4 Corona-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. 5 active C-42 sanitation system licenses are registered in Corona and 73 across Riverside County, the longest-standing issued in 2000. 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 2 of Corona's 5 currently carry. 8 Riverside County licenses expire within 90 days.

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