Updated
Does Arizona require a septic license?
Yes. Arizona requires septic installers to hold a state credential issued by the Arizona Registrar of Contractors. Septic work in Arizona requires a contractor license in class CR-41; counties issue the permit for each system.
Who licenses septic contractors in Arizona?
Arizona Registrar of Contractors.
Arizona's septic credentials:
- CR-41 Septic Tanks and Systems (dual) contractor license
How to check a septic contractor's license in Arizona
- Open the Arizona Registrar of Contractors lookup.
- Search by the contractor's name, the license holder's name or the license number.
- Check the license type covers your job (installation, pumping or inspection) and that the status is active.
- If the contractor's business name doesn't come up, ask which person on staff holds the license: several states license individuals, not companies.
Septic permits in Arizona
A contractor license says who may do septic work; a permit authorizes a specific system. In Arizona, permits for new systems, replacements and most repairs come from the local health department or the state agency office that covers the property. Ask your installer to pull the permit and include the fee in the quote.
Licensed septic companies in Arizona
The Septic Guide lists 212 septic companies and licensed professionals in Arizona, 196 matched to the state's published list. Source list: ROC posting list, class CR-41. This is what we could match as of October 2026, not an official count.
- Maricopa County (54)
- Pima County (34)
- Yavapai County (29)
- Gila County (17)
- Coconino County (13)
- Santa Cruz County (13)
- Pinal County (11)
All septic companies in Arizona →
Arizona septic licensing: common questions
Do you need a license to install septic systems in Arizona?
Yes. Arizona requires septic installers to hold a state credential issued by the Arizona Registrar of Contractors. Septic work in Arizona requires a contractor license in class CR-41; counties issue the permit for each system.
Who issues septic licenses in Arizona?
The Arizona Registrar of Contractors issues Arizona's septic credentials: CR-41 Septic Tanks and Systems (dual) contractor license.
How do I check a septic contractor's license in Arizona?
Open the Arizona Registrar of Contractors lookup. Search by the contractor's name, the license holder's name or the license number. Check the license type covers your job (installation, pumping or inspection) and that the status is active. If the contractor's business name doesn't come up, ask which person on staff holds the license: several states license individuals, not companies.
How many licensed septic contractors are in Arizona?
The Septic Guide lists 212 septic companies and licensed septic professionals in Arizona, 196 of them matched to the Arizona Registrar of Contractors list (data as of October 2026). This counts what we could match; it is not an official total.
Do you need a permit for a septic system in Arizona?
New septic systems, replacements and most repairs need a permit before work starts. The permit comes from the local health department or the state agency office that covers your property, and the permit, not the contractor license, is what authorizes a specific job.
Sources: Arizona Registrar of Contractors; state license lists loaded into The Septic Guide. See how we verify licenses.