Septic Installation Cost Calculator
Septic Installation Cost
Estimate the cost of installing a new septic system based on system type, tank size, and soil conditions
Formula
Total Cost = (System Base Cost x Soil Modifier) + Tank Cost + Permit Fees
Frequently Asked Questions
How much does a septic system cost to install?
A new septic system typically costs between $5,000 for a basic conventional system to over $20,000 for an aerobic treatment unit, depending on soil conditions and local requirements.
How long does a septic system last?
A well-maintained septic system can last 25 to 30 years. The tank itself may last even longer, while the drain field typically needs replacement after 20 to 25 years.