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Best Licensed Septic Contractors in Flagstaff, AZ

6 septic companies registered in Flagstaff hold current ROC licenses, verified against official records as of August 17, 2026. All 6 are listed below, ordered by years licensed.

How we chose: We identified 6 companies registered in Flagstaff. 6 passed license verification. All 6 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.Crazy Russian Construction Co

    ✓ ROC License #200988 - look up this number at ROC
    Verified
    August 17, 2026
    Licensed since
    2004
    Expires
    2026-10-31

  2. 2.Flash Excavating LLC

    ✓ ROC License #228761 - look up this number at ROC
    Verified
    August 17, 2026
    Licensed since
    2007
    Expires
    2028-01-31

  3. 3.Covenant Group Contracting LLC

    ✓ ROC License #231550 - look up this number at ROC
    Verified
    August 17, 2026
    Licensed since
    2007
    Expires
    2027-04-30

  4. 4.Az Alternative Septic Solutions LLC

    ✓ ROC License #331579 - look up this number at ROC
    Verified
    August 17, 2026
    Licensed since
    2020
    Expires
    2026-12-31

  5. 5.Grand Canyon Excavation LLC

    ✓ ROC License #334261 - look up this number at ROC
    Verified
    August 17, 2026
    Licensed since
    2021
    Expires
    2027-08-31

  6. 6.928 Construction, LLC

    ✓ ROC License #361941 - look up this number at ROC
    Verified
    August 17, 2026
    Licensed since
    2025
    Expires
    2027-10-31

Compare the top 6 at a glance

CompanyLicenseClassLicensed since
Crazy Russian Construction Co#200988CR-41 · Dual2004
Flash Excavating LLC#228761CR-41 · Dual2007
Covenant Group Contracting LLC#231550CR-41 · Dual2007
Az Alternative Septic Solutions LLC#331579CR-41 · Dual2020
Grand Canyon Excavation LLC#334261CR-41 · Dual2021
928 Construction, LLC#361941CR-41 · Dual2025

Flagstaff septic licensure at a glance

6 active ROC septic tanks and systems licenses are registered in Flagstaff. Every Arizona license carries a scope, and it is a legal boundary rather than a size tier: 6 of Flagstaff's licenses are dual scope (residential and commercial work) and 0 residential-only, while commercial-only licenses never appear on these pages at all - they do not permit residential work in Arizona. Tenure is what these pages rank on, and Arizona's issue dates are real and filled on every record: the median Flagstaff license has been held 5 years, the longest-standing since 2004, and 0 (0.0%) have been held 25 or more years. The posting list carries no insurance, no bond and no phone for any licensee - Arizona requires a license bond by statute but does not publish it, so we never show one, never claim one, and never rank on one. ROC's contractor search cannot link straight to a record, so every listing above shows its number for you to paste into ROC's contractor search. How we verify.

Septic Contractors in Flagstaff: common questions

How many licensed septic contractors are there in Flagstaff?

6 active ROC septic tanks and systems licenses are registered in Flagstaff. 6 Flagstaff-registered companies passed our license verification, and all 6 are listed on this page. Only licenses ROC posts as Active, carrying a residential or dual scope and unexpired at our data date, are listed.

What does the scope on an Arizona septic license mean?

Arizona's scope is a legal boundary, not a size tier: a commercial-only license does not permit residential work, so commercial-only contractors never appear on these pages at all. 6 of Flagstaff's 6 licenses are dual scope (residential and commercial) and 0 are residential-only.

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

Every listing above shows its ROC license number. ROC's contractor search cannot link straight to a record, so open it and type the number in: it shows the class, scope, status and expiration. The median Flagstaff license has been held 5 years, and the longest-standing dates to 2004.

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