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Septic System Costs in Connecticut (2026)

Based on BLS wage data, septic system in Connecticut costs an average of $10,503, ranging from $9,873 to $10,983.

Connecticut Average $10,503

Septic System Costs by City in Connecticut

Hartford $10,759 New Haven $10,397 Stamford $10,983 Bridgeport $9,873

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Alex - Founder

Reviewed by

Alex Johnson, P.E.

Mechanical Engineer • 15+ Years Home Repair Experience • Licensed Contractor

All cost data on this page has been verified against BLS and Census Bureau records. See our methodology →

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