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A marketing service, not a licensed contractor. Radon mitigation work is performed by independent licensed local contractors.
Badger State Radon

Radon Mitigation in Fond du Lac, WI

Fond du Lac anchors east-central Wisconsin, a stretch of lake-plain neighborhoods at the foot of Lake Winnebago with a largely basement housing stock. Those full basements sit in direct contact with the soil, and radon is driven by what lies under a house rather than its age or style, so the housing here is a reason to test. Fond du Lac County is EPA Radon Zone 1, the higher of the two EPA categories that apply in Wisconsin (predicted average indoor level at or above 4 pCi/L). Whether a high reading just surfaced during a home sale or you are acting on a cold-weather test, Badger State Radon connects Fond du Lac homeowners with independent local radon professionals. We are a free referral service, not a contractor, and this page lays out what radon looks like here and what to do about it.

Radon in Fond du Lac County

Fond du Lac County is EPA Radon Zone 1, the higher of the two EPA categories that apply in Wisconsin (predicted average indoor level at or above 4 pCi/L), cited to the EPA Map of Radon Zones. Every county in Wisconsin falls in Zone 1 or Zone 2, with none in Zone 3, and Fond du Lac lands in the higher category. Zone is a countywide screening designation, not a house-by-house reading, so your street and even your next-door neighbor can test differently. Statewide, WI DHS reports about one in 10 homes come back above the action level, per its radon information for Wisconsin. Radon is a naturally occurring radioactive gas with no color, odor, or taste, and testing is the only way to know a home's level.

Testing your Fond du Lac home

The East Central Radon Information Center (Fond du Lac County Health Department) serves Fond du Lac, Outagamie, Sheboygan, and Winnebago counties. Statewide, 17 Radon Information Centers cover all 72 counties and offer low-cost test kits including lab analysis. Kit prices change, so check that page for current details. A short-term charcoal test takes just a few days, which suits a sale, while a long-term test gives a better year-round average. Winter is peak testing season here, since closed-up homes let radon build. If a short-term test is at or above 4.0 pCi/L, the EPA recommends confirming with a follow-up test. See radon testing for the full rundown.

Mitigation and cost

When a level comes back high, the common fix is active sub-slab depressurization: a pipe and a continuously running fan that draws radon from beneath the slab and vents it above the roofline. Sealing cracks alone is not a fix. Wisconsin DHS estimates a system typically costs $1,000 to $2,000, and Fond du Lac homes fall in that range by foundation type and system design. Learn how systems work on the radon mitigation page. The independent professionals we send your request to can hold the voluntary NRPP or NRSB credentials; we do not perform the work or hold any certification ourselves.

Radon and a Fond du Lac home sale

In a Fond du Lac County transaction, radon is usually tested during the inspection contingency, and a high result moves fast, often leaving days rather than weeks. Many systems install within a few days, and who pays is negotiable between buyer and seller, which is why a quick quote matters. Our page on radon mitigation at a home sale covers the Wisconsin disclosure and timing. For the statewide picture, the Wisconsin radon guide ties it all together.

Get a free quote from a Fond du Lac radon professional

Free and no obligation. Tell us your neighborhood or ZIP and your situation.

When you submit this form, your information is shared with the independent local radon professional we send your request to, for the purpose of following up on your radon testing or mitigation request.

What happens after you send the form

How fast will someone get back to me?
Calls and form submissions reach Compass Camper LLC directly. We read the request and pass it to an independent local radon mitigation contractor, usually within about an hour during the day. They then contact you to look at the house and price the work on their own schedule.

Frequently Asked Questions

Is radon high in Fond du Lac County?

Fond du Lac County is EPA Radon Zone 1, the higher of the two zones that apply in Wisconsin, meaning the predicted average indoor level is at or above the action level. Statewide, WI DHS reports about one in 10 homes tests above 4.0 pCi/L. Zone is a countywide screening figure, so testing your own home is the only way to know your level.

Where is the local Radon Information Center for Fond du Lac?

The East Central Radon Information Center is hosted by the Fond du Lac County Health Department and serves Fond du Lac, Outagamie, Sheboygan, and Winnebago counties. It is one of Wisconsin's 17 Radon Information Centers, which sell low-cost test kits including lab analysis. Kit prices change, so check the Wisconsin DHS radon information centers page for current details. You can also reach the state radon line at 1-888-LOW-RADON (1-888-569-7236).

When is the best time to test for radon here?

Winter is the peak testing season in Wisconsin, because closed-up homes let radon accumulate and give a reading closer to worst case. A short-term charcoal test runs a few days and suits a home sale, while a long-term test gives a better year-round average. If a short-term test is at or above 4.0 pCi/L, the EPA recommends a follow-up test.

How much does radon mitigation cost in Fond du Lac?

Wisconsin DHS estimates a contractor-installed system typically costs $1,000 to $2,000 statewide, and Fond du Lac homes fall in that range depending on foundation type and system design. The radon professional we send your request to will quote your specific home. After installation, the main ongoing cost is the fan electricity, a few dollars a month.

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