Well & Septic ProsSeptic System Installation in Norwalk, CT
24 of the 27 licensed listings in Norwalk hold a Connecticut license class that covers this work: they are licensed to build and install septic tanks and drainfields, and repair or replace failed ones. Not every well & septic professional is; see all Norwalk listings for the full roster.
Michael HuminskiLicensed
Anthony C TomasLicensed
Shaun P DuffyLicensed
Sandra Melissa McCoyLicensed
Peter L CarlucciLicensed
A J Penna & Son Construction INCLicensed
Kevin AvalosLicensed
Glenn A PerschinoLicensed
Roberto AvalosLicensed
Theodore PetruzzielloLicensed
Daniel J HughesLicensed
Ernest L FosnaughLicensed
Carmelo J TomasLicensed
Michael F MaiorinoLicensed
Aleksander AndreaLicensed
Ronald LaskerLicensed
Joseph O'BoyLicensed
Edward Phillip KostowskiLicensed
William J Walsh JrLicensed
Joseph E Hussey JrLicensed
Jorge A ValdovinosLicensed
William J Harding IILicensed
Frank J Currivan IIILicensed
Steven M WeisheitLicensed
What does septic system installation cost?
A conventional septic system typically costs $3,600 to $12,500 installed. Alternative systems (aerobic, mound) for difficult sites run $10,000 to $20,000. Soil conditions drive most of the difference, which is why a soil or percolation test comes first.
Do I need a permit to install or replace a septic system?
Almost always. Your state or county health authority must permit new systems and most repairs, and the design has to match a soil evaluation of your site. Licensed installers usually handle permitting as part of the job; confirm it is included in the quote.
Before you hire
Confirm the license number on this page is still active with Connecticut, ask for proof of insurance, and get at least three written quotes; pricing on this work varies widely by site conditions.