Best Licensed Septic Contractors in Williams, AZ
6 septic companies registered in Williams hold current ROC licenses, verified against official records as of August 17, 2026. All 6 are listed below, ordered by years licensed.
- 6 active ROC septic tanks and systems licenses registered in Williams
- License scopes in Williams: 5 dual (residential and commercial), 1 residential-only; commercial-only licenses never appear here
- Median time licensed in Williams: 1 year
- Longest Williams licensure: since 2006
- 0 of Williams's licenses (0.0%) have been held 25 or more years
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- Verified
- August 17, 2026
- Licensed since
- 2006
- Expires
- 2026-10-31
- Verified
- August 17, 2026
- Licensed since
- 2024
- Expires
- 2028-02-29
- Verified
- August 17, 2026
- Licensed since
- 2024
- Expires
- 2028-02-29
- Verified
- August 17, 2026
- Licensed since
- 2024
- Expires
- 2028-09-30
- Verified
- August 17, 2026
- Licensed since
- 2025
- Expires
- 2027-03-31
- Verified
- August 17, 2026
- Licensed since
- 2026
- Expires
- 2028-06-30
Compare the top 6 at a glance
| Company | License | Class | Licensed since |
|---|---|---|---|
| Universal Mechanical Company LLC | #225785 | CR-41 · Dual | 2006 |
| Watson Excavating LLC | #350409 | CR-41 · Dual | 2024 |
| Valle Dirt Works LLC | #350597 | CR-41 · Dual | 2024 |
| Freedom Construction & Design, LLC | #354606 | CR-41 · Dual | 2024 |
| Dirty Deeds Tractor LLC | #357791 | CR-41 · Dual | 2025 |
| 4j Excavation LLC | #366155 | R-41 · Residential | 2026 |
Williams septic licensure at a glance
6 active ROC septic tanks and systems licenses are registered in Williams. Every Arizona license carries a scope, and it is a legal boundary rather than a size tier: 5 of Williams's licenses are dual scope (residential and commercial work) and 1 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 Williams license has been held 1 year, the longest-standing since 2006, 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 Williams: common questions
How many licensed septic contractors are there in Williams?
6 active ROC septic tanks and systems licenses are registered in Williams. 6 Williams-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. 5 of Williams's 6 licenses are dual scope (residential and commercial) and 1 is 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 Williams license has been held 1 year, and the longest-standing dates to 2006.