Question: how much money does it cost to install a new septic system?
Answer: The average cost to put in a new septic system is $3,280 to $9,550. A basic septic system for a 3-bedroom home will cost $3,918 on average with most homeowners spending between $3,280 and $5,040. When you install a system with two alternating pumps, expect to spend $9,500 to $15,000.