Markesan, WI Radon Mitigation and Testing

Q: What EPA Radon Zone is Markesan in?

Markesan is in Green Lake County, EPA Zone 1.

Q: How much does radon mitigation cost in Markesan?

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

Green Lake County

EPA Zone 1

Markesan, WI resides in Green Lake County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. Testing is recommended for all homes in the 53946 zip code area.

Markesan, WI Radon Mitigation

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

Markesan, WI Radon Testing

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

Markesan Radon Facts

Key details about the radon risk profile for Markesan and the 53946 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Green Lake County, WI

Zip Code

53946

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Markesan and the 53946 zip code are located in Green Lake County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Markesan, WI

What EPA Radon Zone is Markesan in?

Markesan and the 53946 zip code are in Green Lake County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

How much does radon mitigation cost in Markesan?

Radon mitigation in Markesan 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 Markesan?

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