Fredonia, WI Radon Mitigation and Testing

Q: What EPA Radon Zone is Fredonia in?

Fredonia is in Ozaukee County, EPA Zone 2.

Q: How much does radon mitigation cost in Fredonia?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Ozaukee County

EPA Zone 2

Part of the Milwaukee Metro area in Ozaukee County, Fredonia sits in EPA Zone 2 where comprehensive radon data is still being collected. Wisconsin's glacial geology and the prevalence of full basements in regional housing stock create favorable conditions for radon accumulation. Testing is particularly important for homes in zip code 53021, given the state's documented radon challenges.

Fredonia, WI Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Fredonia, WI Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Fredonia Radon Facts

Key details about the radon risk profile for Fredonia and the 53021 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Ozaukee County, WI

Zip Code

53021

Predicted Screening Level

2–4 pCi/L (Zone 2)

Fredonia and the 53021 zip code are located in Ozaukee County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Fredonia, WI

What EPA Radon Zone is Fredonia in?

Fredonia and the 53021 zip code are in Ozaukee County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Fredonia?

Radon mitigation in Fredonia typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in Fredonia?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.

Most Active Radon Markets in Wisconsin

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Milwaukee	10.00 pCi/L	3
Prairie Du Chien	10.00 pCi/L	2
Stevens Point	5.50 pCi/L	2
Menomonie	10.00 pCi/L	1
Delavan	6.00 pCi/L	1
Shawano	No submissions	0
Sturgeon Bay	No submissions	0