2026 prices
How Much Does a Septic System Cost?
Complete septic system installation prices by type. Conventional, aerobic, and mound systems compared.
| Type | Materials | Labor | Total |
|---|---|---|---|
| Conventional system | $3,000-7,000 | $1,500-4,000 | $4,500-11,000 |
| Aerobic treatment system | $5,000-10,000 | $3,000-6,000 | $8,000-16,000 |
| Mound system | $8,000-15,000 | $5,000-10,000 | $13,000-25,000 |
| Chamber system | $4,000-8,000 | $2,000-5,000 | $6,000-13,000 |
| Septic tank only | $800-3,000 | $500-2,000 | $1,300-5,000 |
| Drain field only | $2,000-10,000 | $1,500-5,000 | $3,500-15,000 |
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Prices vary significantly by region, soil type, and local regulations.