Septic System Installation in Mandan, ND
17 of the 17 licensed listings in Mandan hold a North Dakota 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 and septic professional is; see all Mandan listings for the full roster.
Dakota Drain Fields, LLPLicensed
True Grade LLCLicensed
Buffalo ConcreteLicensed
Storms Construction, Inc.Licensed
Nottestad Excavating LLCLicensed
Creative Construction, LLCLicensed
Barrett Excavating, INC.Licensed
Schlosser ExcavatingLicensed
Klesalek ExcavatingLicensed
Interstate ExcavationLicensed
Evolve Contracting LLCLicensed
Schaff And Sons RepairLicensed
DB Plumbing and ServiceLicensed
Bowers ExcavatingLicensed
Kioti Contracting, LLCLicensed
Nodak Plumbing & Heating,Licensed
Kaelberer Construction,Licensed
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 North Dakota, ask for proof of insurance, and get at least three written quotes; pricing on this work varies widely by site conditions.