Can I install a septic system myself?

Most areas require licensed designers or installers and inspections. Check with the Marathon County health department before planning any work yourself.

What is a mound system?

A mound system raises the drain field above the natural soil using sand and fill. It is used where the soil is too shallow, too wet or too slow draining for a conventional field.

Can a replacement system go in the same place?

Sometimes. It depends on the condition of the soil in the old field and local rules. Many replacements use a new area of the yard.

Is SepticTank.com the installer?

No. SepticTank.com connects you with an independent local septic company that serves Wausau. That company designs, installs and prices the system.

Septic System Installation in Wausau, WI

Whether you are building a new home in Wausau or replacing a system that has reached the end of its life, septic installation is a project that starts with the soil. The right system depends on your lot, your soil and the size of your household.

Request a call and a local septic company that installs systems in Wausau and Schofield, Rothschild, Weston will explain the process from site evaluation to final inspection.

The steps of a new septic installation

Expect five stages: site and soil evaluation, system design, permit approval, construction, and inspection before the trenches are covered. Weather and permit review times affect the schedule more than the digging itself, which often takes only a few days once everything is approved.

Types of septic systems

Conventional systems use a tank and a gravity drain field and suit lots with good soil. Where soil is poor, shallow or wet, options include pressure distribution, mound systems, chamber systems, sand filters and aerobic treatment units. Your soil test and local rules decide which types are allowed on your lot.

Approvals you will need

Plan on a permit for any new or replacement system. Regulators typically want a site evaluation, a design that meets local code and an inspection before the system is covered. Your installer or designer often handles the paperwork, but the permit is tied to your property, so keep copies.

What affects installation cost

The biggest factors are system type, soil conditions, lot access, tank size and local permit requirements. Conventional systems in good soil generally cost the least. Mounds, aerobic units and other engineered systems cost more to build and maintain. Removing an old system and restoring landscaping add to replacement projects.

Getting the most from your new system

Good habits protect your investment: spread out laundry, fix leaks promptly, avoid flushing wipes and grease, and pump on schedule. If your system has an alarm, learn what it means and who to call.

Questions for a septic installer

Ask who will do the soil test and design, whether they pull the permit, and which system types they recommend for your lot and why. Ask how long the project will take, what warranty they give, and whether the quote includes restoring the yard. Ask for references from recent jobs near Wausau.

Scheduling a septic installation

Start early if you are building or replacing a failing system. Book the soil evaluation first, since everything else depends on it. Ask your installer how long permits are currently taking with the Marathon County health department, and plan for weather, especially if the work falls in winter or a rainy season.

What experienced installers watch for

Good installers in Wausau pay attention to setbacks from wells and property lines, the slope of the lot, and where roof and yard water drains. They also plan how equipment will reach the site without compacting the future drain field. They also confirm the design matches the permit before the first shovel goes in. Small details at this stage decide whether the system lasts decades or needs early repair.

New septic systems in Marathon County

New and replacement systems in Marathon County go through the Marathon County health department, which reviews designs and inspects the work. Soil conditions change from one part of the county to another, so a design that suits a lot in Wausau may differ from one in Schofield, Rothschild, Weston. A local installer knows those differences.

What Wausau's soil means for a new system

The USDA soil survey rates most mapped soils near Wausau as very limited for septic absorption fields. New systems here often need a mound, pressure distribution or another engineered design, which your soil test will confirm. Wausau averages about 34 inches of precipitation a year, which your designer will factor into where the system goes. About 5 months below freezing mean pipes and components must sit deep enough or be insulated, and installation is usually easiest outside winter.

Local conditions in Wausau that affect septic installation

Among the mapped soils within about two miles of central Wausau, the USDA soil survey rates 89% as very limited for septic absorption fields, 11% as somewhat limited and 0% as not limited. The most common drainage class is well drained. Soils like these often call for careful system design, such as a larger drain field, a mound or another engineered system, and a site evaluation before any new installation or replacement.

Wausau averages about 34 inches of precipitation a year, and June is usually the wettest month. Average temperatures stay below freezing for about 5 months a year, with January averaging 12°F, so tank lids and shallow lines benefit from a layer of snow or mulch rather than being cleared bare.

Sources: USDA NRCS Soil Survey (SSURGO), Soil Data Access; NASA POWER long-term climatology. Soil ratings describe mapped soil types near the city center and do not replace a site evaluation of your property.

What the soil around Wausau means for septic installation

By drainage class, the USDA soil survey maps the land around Wausau as 36% well drained, 23% somewhat poorly drained, 15% moderately well drained, 9% excessively drained, 8% poorly drained, 6% somewhat excessively drained, 3% very poorly drained. With 34% of the soil poorly drained, a new or replacement field here is often larger or raised, and a soil test comes before any design.

Source: USDA NRCS Soil Survey (SSURGO), Soil Data Access

Septic companies near Wausau

These are the septic companies in our directory closest to Wausau, with straight-line distance. Call any of them directly, or send one request and we will pass it to the best match.

Modern Sewer Inc, Wausau, WI, 1.3 mi
Stanke Septic, Wausau, WI, 4.6 mi
Schmidt's Septic Service LLC, Merrill, WI, 17.2 mi
Country Pumpers, Mosinee, WI, 18.6 mi
Kautza Septic, Aniwa, WI, 20.1 mi
Zabler Septic Service LLC, Stratford, WI, 21.7 mi

Septic Installation in nearby towns

We also cover septic installation in these towns near Wausau:

Schofield, 3.6 mi
Rothschild, 6.2 mi
Weston, 6.8 mi
Maine, 6.9 mi
Marathon City, 10.1 mi
Kronenwetter, 10.2 mi

About Wausau, WI

Wausau is in Marathon County, Wisconsin. About 39,968 people live there, across 19.2 square miles of land (about 2,079 per square mile).

Septic Installation questions in Wausau

Can I install a septic system myself?: Most areas require licensed designers or installers and inspections. Check with the Marathon County health department before planning any work yourself.
What is a mound system?: A mound system raises the drain field above the natural soil using sand and fill. It is used where the soil is too shallow, too wet or too slow draining for a conventional field.
Can a replacement system go in the same place?: Sometimes. It depends on the condition of the soil in the old field and local rules. Many replacements use a new area of the yard.
Is SepticTank.com the installer?: No. SepticTank.com connects you with an independent local septic company that serves Wausau. That company designs, installs and prices the system.