
Jim Kovalak Excavating Inc
Willis, MIMonroe County
excavation, foundations, septic systems
59 years in business

Septic Systems in Michigan
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 290 septic systems contractors that serve Michigan.Compare their work and equipment, then confirm availability and service area before requesting a quote.
Listed businesses are based in Willis, Traverse City, Chelsea, Concord, Muskegon, Portland, 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
290 contractors found

Willis, MIMonroe County
excavation, foundations, septic systems
59 years in business

Traverse City, MIGrand Traverse County
demolition, driveways, excavation, hauling trucking, land clearing, paving prep
70 years in business

Chelsea, MIWashtenaw County
demolition, driveways, excavation, grading, hauling trucking, septic systems

Concord, MICalhoun County
concrete cutting removal, driveways, erosion control, excavation, foundations, grading

demolition, excavation, foundations, grading, hauling trucking, land clearing
40 years in business

Portland, MIClinton County
demolition, driveways, excavation, grading, hauling trucking, land clearing

Flint, MIGenesee County
demolition, driveways, excavation, foundations, grading, land clearing

demolition, driveways, erosion control, excavation, grading, hauling trucking

Durand, MIGenesee County
demolition, driveways, excavation, foundations, grading, hauling trucking
15 years in business
Greenville, MIIonia County
demolition, driveways, excavation, grading, hauling trucking, land clearing

Sterling, MIArenac County
driveways, excavation, foundations, grading, hauling trucking, septic systems
1 years in business

demolition, excavation, foundations, grading, hauling trucking, land clearing

Hesperia, MINewaygo County
excavation, foundations, hauling trucking, septic systems

Clarkston, MIOakland County
driveways, excavation, land clearing, septic systems

driveways, excavation, foundations, grading, hauling trucking, land clearing
54 years in business

driveways, erosion control, excavation, grading, land clearing, septic systems
20 years in business

driveways, erosion control, excavation, foundations, grading, land clearing

demolition, excavation, grading, land clearing, septic systems, site prep

Rockford, MI
driveways, excavation, foundations, grading, land clearing, pond water management
30 years in business

Fremont, MIMuskegon County
demolition, driveways, excavation, foundations, grading, hauling trucking
25 years in business
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