Well & Septic ProsSeptic System Installation in Columbia, MO
18 of the 23 licensed listings in Columbia hold a Missouri 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 Columbia listings for the full roster.
MasterTech PlumbingLicensed
Samuel ExcavatingLicensed
Castle Custom HomesLicensed
Mid Missouri Underground LLCLicensed
Haskamp ExcavationLicensed
Diversified Excavating LLCLicensed
Thoma Construction LLCLicensed
J.D. Kelly Excavating IncLicensed
Brian Wear PlumbingLicensed
Milam ContractingLicensed
Atelier I70Licensed
Bio-GardLicensed
Pro Pumping & Hydrojetting LLCLicensed
Bio-Gard IncLicensed
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 Missouri, ask for proof of insurance, and get at least three written quotes; pricing on this work varies widely by site conditions.