NJ Septic System Installation Cost

The following costs of a septic system installation are based on a per bedroom. This is just a price range and does not factor in soil information and approved septic plan. A firm estimate cannot be submitted without all the components, but here is a general idea on cost.

Engineering, soil logs, septic plan and inspections $2,500 to $3,500
Equipment rental to dig soil logs $700
Estimate for a 3 bedroom septic installed $10,000 to $20,000
Estimate for a 4 bedroom septic installed $15,000 to $28,000
Estimate for a 5 bedroom septic installed $25,000 to $40,000

These prices are estimated, and may be adjusted higher or lower if trees need to be removed or if fill dirt has to be brought in or removed. There may also be additional cost if a pump tank for a pump system needs to be installed.

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