Basement waterproofing & foundation repair in Neenah, WI
Wet basements, bowing walls, and failing sump systems in Neenah — diagnosed on site, fixed at the cause, with a written scope before any work begins.
Who does basement waterproofing in Neenah, WI?
Green Bay Basements serves Neenah and all of Winnebago County — interior drain tile, sump systems, bowing wall repair, and foundation crack injection, built to the SPS 321.17 drain tile standard for Brown County red clay. 36 miles from Green Bay, no travel surcharge. Call (920) 545-4548.
- Location: Neenah, WI · Winnebago County · pop. 27,300
- Distance: 36 miles from Green Bay — inside the 45-mile service radius
- Soil: Kewaunee-Manawa-Poygan — silt over red lake clay, drains poorly
- Frost depth: 48" · annual rainfall 31.6"
- Permits: Winnebago County building department for structural work and egress cutting
What makes Neenah basements different
Neenah sits at the north end of Lake Winnebago on the old Glacial Lake Oshkosh bed — the flattest, clay-heaviest ground in the corridor. Water sits rather than runs, and basements here often stay damp for weeks after the rain that caused it has passed.
Brown County sits on the Kewaunee-Manawa-Poygan soil association — a thin silty cap over calcareous red clay laid down as lake sediment by Glacial Lake Oshkosh and the Green Bay Lobe. That red clay runs roughly 5 to 20 feet thick across most of the county and is among the least permeable material a foundation can be built into. That is the mechanism behind most of what we see in Winnebago County: not rainfall volume, but clay that refuses to drain and holds the water against the wall until it finds a way through.
The Manawa and Poygan members of that association are rated somewhat poorly and poorly drained — they hold water near the surface instead of passing it down, so a wet spring loads the outside of a foundation wall for weeks at a time rather than days. With 31.6" of rain and 55.6" of snow a year, and a 48" frost line driving freeze-thaw cycling, the loading is seasonal and relentless rather than occasional.
Services available in Neenah
Basement Waterproofing
A wet Green Bay basement is a thaw problem before it is a rain problem. Fifty-five inches of snow melts into ground that has been frozen since December, and the red lake clay underneath cannot take it.
Foundation Repair
Foundation problems in Brown County come from two directions: red lake clay pushing walls inward, and soil consolidating under footings. They look different, they fail differently, and they need different repairs.
Wet Basement Repair
Green Bay basements leak on a trigger — a heavy rain, a saturated spring, or the thaw week when meltwater runs across frozen ground. Which trigger yours has tells you what the repair costs.
Sump Pump Installation
A sump pump is the discharge end of a drainage system. Sizing it for a Green Bay thaw rather than a summer storm, and running the discharge somewhere legal and unfreezable, is what keeps a basement dry through April.
French Drain Installation
Brown County clay does not absorb water, it sheets it. A French drain intercepts that flow and sends it somewhere other than your foundation.
Foundation Crack Repair
Not every crack is structural, and not every crack is only a leak. Direction, width and whether it is moving tell you which one you have.
See all basement and foundation services.
Neenah questions
Do you serve Neenah?
Yes — Neenah is 36 miles from Green Bay and sits inside our regular service area across Winnebago County. Inspections are scheduled the same as in the city, and there is no travel surcharge anywhere in the 45-mile radius.
What causes wet basements in Neenah?
Neenah sits at the north end of Lake Winnebago on the old Glacial Lake Oshkosh bed — the flattest, clay-heaviest ground in the corridor. Water sits rather than runs, and basements here often stay damp for weeks after the rain that caused it has passed. Underneath that local factor the whole region shares one problem: red lake clay from Glacial Lake Oshkosh, five to twenty feet thick and close to impermeable. It holds water against foundation walls instead of passing it down, and the load peaks during the spring thaw when meltwater arrives on ground that is still frozen below.
What does basement waterproofing cost in Neenah?
The same Brown County ranges apply: interior perimeter drainage $5,000–$15,000, crack injection $400–$1,200, bowing wall stabilization $4,000–$15,000, and exterior excavation $12,000–$30,000. Scope is set by an on-site inspection, not by the phone call.
Do I need a permit in Winnebago County?
Interior drainage and sump work generally does not require one. Structural foundation repair and cutting an egress window do, and in Winnebago County those go through the county building department. Any contractor unwilling to pull a permit for structural work should be disqualified on that alone.
Serving Neenah and all of Winnebago County.
Free on-site inspection — 36 miles from Green Bay.