Updated
Does Ohio require a septic license?
Ohio has no statewide septic installer license; septic contractors are licensed or registered locally. Ohio installers register with each county health district they work in.
Who licenses septic contractors in Ohio?
County health districts (OAC 3701-29).
Ohio's septic credentials:
- County installer and service provider registration
How to check a septic contractor's license in Ohio
- Ohio has no public statewide list of septic contractors.
- Ask the contractor for their local license or registration number and which county or town issued it.
- Call that county health department or town office to confirm it is current.
Septic permits in Ohio
A contractor license says who may do septic work; a permit authorizes a specific system. In Ohio, 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 Ohio
The Septic Guide lists 51 septic companies and licensed professionals in Ohio, 2 matched to the state's published list. This is what we could match as of October 2026, not an official count.
All septic companies in Ohio →
Ohio septic licensing: common questions
Do you need a license to install septic systems in Ohio?
Ohio has no statewide septic installer license; septic contractors are licensed or registered locally. Ohio installers register with each county health district they work in.
Who issues septic licenses in Ohio?
County health districts (OAC 3701-29). Ohio installers register with each county health district they work in.
How do I check a septic contractor's license in Ohio?
Ohio has no public statewide list of septic contractors. Ask the contractor for their local license or registration number and which county or town issued it. Call that county health department or town office to confirm it is current.
How many licensed septic contractors are in Ohio?
The Septic Guide lists 51 septic companies and licensed septic professionals in Ohio, 2 of them matched to the Ohio Construction Industry Licensing Board 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 Ohio?
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: County health districts (OAC 3701-29); state license lists loaded into The Septic Guide. See how we verify licenses.