Septic System Costs in Massachusetts (2026)

Based on BLS wage data, septic system in Massachusetts costs an average of $10,608, ranging from $10,408 to $10,958.

Septic System Costs by City in Massachusetts

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 →