Sand filter Septic System Cost in New Hampshire
Estimated 2026 installed range: $9,800 – $19,500
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Open the cost calculatorWhy New Hampshire prices differ
Statewide cost drivers here are freeze depth, bedrock and older housing stock. Locally, bedrock and slope are the dominant cost factors. That is why a sand filter system in New Hampshire can land well above or below the national range of $8,000–$16,000.
All system types in New Hampshire
| System | Low | High |
|---|---|---|
| Conventional | $4,300 | $9,800 |
| Chamber | $6,100 | $13,400 |
| Aerobic / ATU | $9,800 | $22,000 |
| Mound | $12,200 | $26,800 |
| Sand filter | $9,800 | $19,500 |
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 New Hampshire · Sand filter system overview