State Overview
WI
Select your county below to view itemized mitigation estimates, local labor rates, and EPA zone risk factors.
Adams
Ashland
Barron
Bayfield
Brown
Buffalo
Burnett
Calumet
Chippewa
Clark
Columbia
Crawford
Dane
Dodge
Door
Douglas
Dunn
Eau Claire
Florence
Fond du Lac
Forest
Grant
Green
Green Lake
Iowa
Iron
Jackson
Jefferson
Juneau
Kenosha
Kewaunee
La Crosse
Lafayette
Langlade
Lincoln
Manitowoc
Marathon
Marinette
Marquette
Menominee
Milwaukee
Monroe
Oconto
Oneida
Outagamie
Ozaukee
Pepin
Pierce
Polk
Portage
Price
Racine
Richland
Rock
Rusk
Sauk
Sawyer
Shawano
Sheboygan
St. Croix
Taylor
Trempealeau
Vernon
Vilas
Walworth
Washburn
Washington
Waukesha
Waupaca
Waushara
Winnebago
Wood
WI Radon Levels by County
View EPA zone data and risk classifications
How to Test for Radon
Complete homeowner's testing guide
Why Does Cost Vary in WI?
Cost estimates across WI range due to local labor market conditions and specific EPA zone profiles. Foundation types (basement vs slab) also heavily impact material costs and permit requirements. Choose your specific county to narrow down your estimate bounds.