WI · Dane County

Radon Test Kits in Madison, WI

The verified Madison contact is the Southern Wisconsin Radon Information Center at Public Health Madison and Dane County, 2705 E. Washington Ave. Phone 608-243-0392. We could not confirm a kit price or walk-in hours from the state list, so call first.

Last verified October 1, 2026. Confirm the official page before you travel. Prices and stock change.

Local option

Confirm before you goTesting guidance

Public Health Madison and Dane County radon center

Wisconsin lists Public Health Madison and Dane County as the radon information center for Dane, Green, and Rock counties.

The state center list does not publish a kit price for this office. Confirm cost and stock before you go.

Call 608-243-0392. The list also names DeVante Nelson and Chee Thao at Public Health Madison and Dane County.

Southern Wisconsin Radon Information Center

This is the Madison office.

2705 E. Washington Ave.
Madison, WI 53704

Phone: 608-243-0392

This pin is the center's published office. It is not proof that a free kit is on the counter today. Hours were not on the center list we checked.

Last verified October 1, 2026Radon Information Centers | Wisconsin DHS See something outdated? Report a change.

Confirm before you goTesting guidance

Wisconsin radon information centers

Wisconsin DHS points you to regional radon information centers. Many offer free or reduced-cost kits, and store kits are described as $10 to $30.

DHS says you can buy a kit for $10 to $30 online, at a hardware store, or through your regional center. It also says many centers provide kits for free or at a reduced cost. It does not promise that price at every center.

Use the regional center list, or buy a kit on your own.

DHS says levels above 4 pCi/L are high and a contractor can install a mitigation system. Center addresses are on the information-center page.

Last verified October 1, 2026Radon Information for Wisconsin | Wisconsin DHS See something outdated? Report a change.

Prefer a reusable electronic radon monitor?

A short-term test kit is a good low-cost way to screen a home. If you want to see how radon changes over days, weeks, and seasons, or you want a monitor you can reuse in another home, an electronic radon monitor may be a better fit.

Bill's current pick from the Minneapolis guide: Airthings View Radon. It is the simpler radon display. View Plus is the one to compare if you also want a wider indoor air picture.

See current Airthings price Compare radon monitors

If you purchase through our Airthings link, we receive a small percentage of the sale at no additional cost to you. Our affiliate link may provide a discount on eligible products. This helps support the local radon-testing directory.

The product link does not apply a discount by itself. Bill's Minneapolis guide says to add the monitor to your cart, enter your name and shipping, then type ARS10 at checkout. That guide says the code is 10% off eligible Airthings products, it does not apply to items that are already discounted, and it does not stack with other offers. Code: ARS10.

EPA radon zone

EPA classifies Dane County as Zone 1, its highest radon-potential category. Individual homes can vary, so testing is still the only way to know your home's level. The zone is not a claim that your house is high.

Local radon notes

EPA classifies Dane County as Zone 1, its highest radon-potential category. Individual homes can vary, so testing is still the only way to know your home's level.

Source: EPA Map of Radon Zones (county file https://www.epa.gov/system/files/other-files/2024-06/radon-zones-202406.json). Checked October 1, 2026.

How to test, and what a result means

Place the kit the way its instructions say, and keep the house closed when the kit requires that. A short test is a screen. It is not the last word if your state wants a follow-up test.

How to test for radon
Understanding radon results
What 4 pCi/L means

Sources

Radon Information Centers | Wisconsin DHS. Verified October 1, 2026.
Radon Information for Wisconsin | Wisconsin DHS. Verified October 1, 2026.
EPA Map of Radon Zones (county file https://www.epa.gov/system/files/other-files/2024-06/radon-zones-202406.json)

How we check programs

Where can I get a radon test kit in Madison?

Start with Public Health Madison and Dane County, the center Wisconsin lists for Dane County, at 608-243-0392. The state says many centers offer free or reduced-cost kits, but this office's price was not on the list we checked. Store kits are described statewide as $10 to $30.

A reusable monitor does not have to stay in one house. After you have a reading you trust for your own home, you can lend it to a parent, an adult child, a coworker, a neighbor, or a friend.

Here is an example, not a sale price. If a roughly $100 monitor is eventually used by five households, the equipment cost works out to about $20 per household. Your real price will be whatever the maker charges that day.

Lending a monitor this way does not meet a professional test or a real estate requirement. When you move the device, follow the manufacturer's instructions and start a new measurement.