Aerobic / ATU Septic System Cost in Ohio
Estimated 2026 installed range: $7,400 – $16,600
Get your own estimate in 30 seconds
Open the cost calculatorWhy Ohio prices differ
Statewide cost drivers here are clay soils and deep frost. Locally, clay soils often require a sand filter or mound. That is why a aerobic / atu system in Ohio can land well above or below the national range of $8,000–$18,000.
All system types in Ohio
| System | Low | High |
|---|---|---|
| Conventional | $3,200 | $7,400 |
| Chamber | $4,600 | $10,100 |
| Aerobic / ATU | $7,400 | $16,600 |
| Mound | $9,200 | $20,200 |
| Sand filter | $7,400 | $14,700 |
What aerobic / atu systems are for
Aerobic treatment units add oxygen to break down waste faster. They are used on tight or wet lots, require electricity, and need periodic maintenance.