Service area
Where We Work: Janesville & Rock County, WI
We waterproof basements in Janesville and across Rock County, working on foundations that take about 37 inches of precipitation and about 37 inches of snow a year and go through winters that freeze and thaw the ground over and over. Call 123-456-7890 for a free estimate anywhere in our service area.
The communities around Janesville share a river valley, a climate, and a lot of the same housing, so the water problems repeat with local differences. If your community isn't named below, call and ask, since we cover more of Rock County than a list can hold.

Janesville
Janesville is the Rock County seat and the center of our service area. About 27% of its occupied homes were built before 1960 and about 28% between 1960 and 1979, so most Janesville basements went in before modern waterproofing. We handle everything from a single damp wall to a full perimeter system with a battery backup sump pump, and we repair walls that have cracked or started to bow.
The Rock River runs through the city and has flooded it before. The USGS counted Janesville among nine severely damaged communities in the June 2008 southern Wisconsin floods. On April 17, 2026, flash flooding sent storm runoff into Janesville basements, the National Weather Service called the flash flooding particularly severe in the Janesville area, and city figures put the damage above $30 million. We look at the river, the weather, and the foundation together at the inspection.
The City of Janesville and the Town of Janesville are separate jurisdictions, so permit rules can differ between them. We confirm what the local building department requires before work starts.
Cities Near Janesville
Several Rock County cities sit close to Janesville and share its weather and its river. We work in Beloit, Milton, Evansville, and Edgerton, and the same inspection-first approach applies in each. Beloit was one of the nine communities the USGS named as severely damaged in the June 2008 floods. Edgerton lies partly in Dane County, and we cover the Rock County side.
Villages and Communities
We also work in the villages of Clinton, Orfordville, and Footville. Smaller communities have their own housing mix and their own drainage, and the fix is set by the house, not the village.
Frequently asked
Frequently Asked Questions
Do you cover my town in Rock County?
We cover Janesville and Rock County, including Beloit, Milton, Evansville, Edgerton, Clinton, Orfordville, and Footville. The communities share the same weather, river, and foundation types, so the waterproofing we do in Janesville applies across the county. If your community isn't named here, call 123-456-7890 and we'll confirm coverage for your address.
Do the basement problems differ between Janesville and the surrounding towns?
The causes are the same across the county: heavy rain and snowmelt, winters that freeze and thaw the ground, and foundations that were built before modern drainage. What changes from house to house is the foundation. A block-wall basement often needs interior drainage and possibly wall repair, while a newer poured-wall home may need only drainage at the floor-wall seam. The inspection measures the house in front of us.
Does the Rock River affect basements in Janesville?
A home close to the river can face high groundwater on top of the usual weather loads, and the river has flooded the area before, notably in June 2008. Most wet basements still come from saturated ground and storm runoff, not from river flooding. Flood insurance is a separate policy from homeowners insurance, so ask your insurer about your address.
Do permit rules differ between the City of Janesville and the Town of Janesville?
Permit requirements are set locally, and the City of Janesville and the Town of Janesville are separate jurisdictions with their own rules. We confirm what the local building department requires for your specific job before work starts. Call 123-456-7890 and we'll check it for your address.
Get a Free Estimate
For basement waterproofing anywhere in Janesville and Rock County, call 123-456-7890 for a free estimate. Contact us or start with the main Janesville page.