Sand filter Septic System Cost in Maine
Estimated 2026 installed range: $9,400 – $18,900
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Open the cost calculatorWhy Maine prices differ
Statewide cost drivers here are freeze depth, bedrock and older housing stock. Locally, shallow bedrock and frost depth are the two biggest cost drivers. That is why a sand filter system in Maine can land well above or below the national range of $8,000–$16,000.
All system types in Maine
| System | Low | High |
|---|---|---|
| Conventional | $4,100 | $9,400 |
| Chamber | $5,900 | $13,000 |
| Aerobic / ATU | $9,400 | $21,200 |
| Mound | $11,800 | $26,000 |
| Sand filter | $9,400 | $18,900 |
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.