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Septic Costs & Prices (2026)

28 pricing benchmarks to help you evaluate your septic quote.

Price Points
28
Subcategories
4
Price Range
$20 – $35,000

Install

Service / Item Low Average High
Aerobic Treatment System (job) $10,000 $20,000 $35,000
Complete Septic System Install (job) $8,000 $15,000 $30,000
Drain Field Install (job) $3,000 $7,000 $15,000
Drain Field Replacement (job) $3,000 $7,000 $15,000
Mound System Install (job) $10,000 $20,000 $35,000
New Septic System Install (job) $5,000 $10,000 $25,000
Septic Tank Install (1000 gal) (job) $3,000 $6,000 $10,000
Septic Tank Install (1500 gal) (job) $4,000 $7,500 $12,000
Septic Tank Replacement (job) $3,000 $6,000 $12,000
Sewer Line Connection (septic to city) (job) $3,000 $7,000 $15,000

Repair

Service / Item Low Average High
Drain Field Repair (job) $1,500 $4,000 $10,000
Drain Field Repair (job) $2,000 $5,000 $10,000
Septic Baffle Repair (job) $200 $500 $1,000
Septic Baffle Repair (job) $200 $500 $1,000
Septic Line Replacement (job) $1,000 $2,500 $5,000
Septic Pump Replacement (each) $500 $1,200 $2,500
Septic Tank Lid Replacement (each) $100 $300 $600
Septic Tank Repair (job) $500 $1,500 $3,500

Service

Service / Item Low Average High
Septic Additives/Treatment (treatment) $20 $50 $100
Septic Filter Cleaning/Replace (job) $50 $150 $300
Septic Inspection (visit) $100 $250 $500
Septic Inspection (pre-purchase) (job) $200 $400 $700
Septic System Perc Test (job) $500 $1,000 $2,000
Septic Tank Pumping (job) $200 $400 $700
Septic Tank Riser/Lid Install (each) $200 $400 $700

Well

Service / Item Low Average High
Pressure Tank Replacement (job) $300 $700 $1,400
Well Drilling (per foot) (lnft) $25 $50 $100
Well Pump Replacement (job) $800 $1,800 $3,500

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