
Tollefson Excavating
Moose Lake, MNCarlton County
demolition, driveways, excavation, foundations, grading, hauling trucking

Septic Systems in Minnesota
Conventional, chamber, mound and aerobic systems installed to the approved design, with the health department inspection before backfill.
Project guide
Septic contractors install and replace the tank, distribution box and drain field that treat wastewater on properties without sewer. Nothing goes in the ground until a soil evaluation or percolation test has been done and the county or state health department has approved a system design; the installer builds to that design and the inspector looks at the open trenches before they are covered. Conventional gravel-and-pipe drain fields are the least expensive where soil drains well, but heavy clay, high water tables and small lots push jobs toward chambers, sand mounds, drip dispersal or an aerobic treatment unit, each with a different price and maintenance schedule. Most states license septic installers separately from general contractors, and many require a pumping and inspection record at property sale.
GradeLine lists 189 septic systems contractors that serve Minnesota.Compare their work and equipment, then confirm availability and service area before requesting a quote.
Listed businesses are based in Moose Lake, Bemidji, Ramsey, Lindstrom, Lowry, Princeton, though most crews travel well beyond their home city.
A conventional gravity system on well-draining soil typically runs $5,000 to $12,000 installed. Chamber and pressure-dosed systems land in the $8,000 to $18,000 range, and mound or aerobic treatment systems commonly cost $15,000 to $35,000 because of the extra fill, pumps and electrical work. The soil evaluation and design usually add $500 to $2,000 up front.
Ranges are national and approximate; regional labor rates, material prices and site conditions move them in both directions.
A conventional gravity system on well-draining soil typically runs $5,000 to $12,000 installed. Chamber and pressure-dosed systems land in the $8,000 to $18,000 range, and mound or aerobic treatment systems commonly cost $15,000 to $35,000 because of the extra fill, pumps and electrical work. The soil evaluation and design usually add $500 to $2,000 up front.
Pull together any existing septic permit or as-built drawing, the plot plan showing the well, house and property lines, the bedroom count, and any recent inspection or pumping record.
The main cost items are system type and size, which the design sets by bedroom count and the soil evaluation; depth to seasonal high water table or rock, the amount of fill or sand required, and haul distances; tank material and access, pump and alarm components, and the cost of the design, permit and inspections. A site visit helps the crew see which ones apply.
Every state requires a permit for new or replacement septic systems, issued by the county or state health department after a soil evaluation and design review. Setbacks from wells, streams and property lines are fixed by code, and the system must be inspected before the trenches are backfilled.
Directory
189 contractors found

Moose Lake, MNCarlton County
demolition, driveways, excavation, foundations, grading, hauling trucking

Bemidji, MN
driveways, excavation, foundations, grading, hauling trucking, septic systems

Ramsey, MNAnoka County
driveways, excavation, foundations, grading, pond water management, septic systems
15 years in business

Lindstrom, MNChisago County
demolition, driveways, excavation, grading, hauling trucking, land clearing
40 years in business

Lowry, MNCass County
demolition, erosion control, excavation, hauling trucking, land clearing, pond water management

Princeton, MNMille Lacs County
demolition, driveways, erosion control, excavation, foundations, grading
5 years in business

Columbus, MNChisago County
demolition, excavation, grading, pond water management, septic systems, site prep
50 years in business


Howard Lake, MNClay County
demolition, driveways, erosion control, excavation, foundations, grading

Bethel, MNAnoka County
demolition, driveways, erosion control, excavation, foundations, grading

Long Prairie, MNTodd County
concrete cutting removal, demolition, driveways, erosion control, excavation, grading
24 years in business

Aurora, MNSt. Louis County
driveways, excavation, grading, hauling trucking, land clearing, pond water management

New Brighton, MNRamsey County
concrete flatwork, demolition, driveways, erosion control, excavation, foundations

Walker, MNHubbard County
demolition, driveways, excavation, foundations, hauling trucking, land clearing

Cushing, MNMorrison County
driveways, excavation, septic systems, site prep
66 years in business

Avon, MNStearns County
demolition, excavation, hauling trucking, land clearing, septic systems, trenching underground
50 years in business

Bovey, MNItasca County
demolition, erosion control, excavation, grading, hauling trucking, land clearing

Nerstrand, MNGoodhue County
demolition, driveways, erosion control, excavation, foundations, hauling trucking
27 years in business

Corcoran, MNHennepin County
excavation, hauling trucking, septic systems, site prep
32 years in business

Akeley, MNHubbard County
driveways, excavation, foundations, grading, hauling trucking, septic systems
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