Aerobic / ATU Septic System Cost in Texas
Estimated 2026 installed range: $7,800 – $17,600
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Open the cost calculatorWhy Texas prices differ
Statewide cost drivers here are high water tables and clay soils. Locally, clay soils and local health department rules vary widely across the state. That is why a aerobic / atu system in Texas can land well above or below the national range of $8,000–$18,000.
All system types in Texas
| System | Low | High |
|---|---|---|
| Conventional | $3,400 | $7,800 |
| Chamber | $4,900 | $10,800 |
| Aerobic / ATU | $7,800 | $17,600 |
| Mound | $9,800 | $21,600 |
| Sand filter | $7,800 | $15,700 |
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.