Sand filter Septic System Cost in North Carolina
Estimated 2026 installed range: $7,800 – $15,700
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Open the cost calculatorWhy North Carolina prices differ
Statewide cost drivers here are high water tables and clay soils. Locally, soil wetness classes determine system type and drain field size. That is why a sand filter system in North Carolina can land well above or below the national range of $8,000–$16,000.
All system types in North Carolina
| 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 sand filter systems are for
A sand filter treats effluent before it reaches the drain field, which helps on poor soil. It adds cost and requires scheduled maintenance.
Related pages
All septic costs in North Carolina · Sand filter system overview