Croswell, MI Radon Mitigation and Testing

Q: What EPA Radon Zone is Croswell in?

Croswell is in Sanilac County, EPA Zone 2.

Q: How much does radon mitigation cost in Croswell?

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

Sanilac County

EPA Zone 2

Croswell, nestled in Sanilac County along Michigan's eastern thumb region, sits atop glacial till deposits that can create conditions favorable for radon gas accumulation. Testing data for this zip code 48422 community remains limited, making professional radon testing essential for homeowners. Given the geological characteristics of the region, residents should prioritize baseline testing regardless of home age or foundation type.

Croswell, MI Radon Mitigation

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

Croswell, MI Radon Testing

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

Croswell Radon Facts

Key details about the radon risk profile for Croswell and the 48422 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Sanilac County, MI

Zip Code

48422

Predicted Screening Level

2–4 pCi/L (Zone 2)

Croswell and the 48422 zip code are located in Sanilac 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 Croswell, MI

What EPA Radon Zone is Croswell in?

Croswell and the 48422 zip code are in Sanilac 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 Croswell?

Radon mitigation in Croswell 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 Croswell?

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 Michigan

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

City	Avg User Radon Level	Submissions
Novi	5.00 pCi/L	7
Rochester	9.00 pCi/L	5
Battle Creek	6.60 pCi/L	5
White Lake	10.00 pCi/L	4
Ypsilanti	8.50 pCi/L	4
Waterford	7.75 pCi/L	4
Howell	7.50 pCi/L	4
Gaylord	6.00 pCi/L	4
Gladstone	5.25 pCi/L	4
West Bloomfield	5.25 pCi/L	4
Clarkston	5.00 pCi/L	4
Flint	9.00 pCi/L	3
Pinckney	7.33 pCi/L	3
Northville	5.33 pCi/L	3
Milford	4.33 pCi/L	3
Plymouth	4.33 pCi/L	3
Portage	3.33 pCi/L	3
Lake Orion	11.00 pCi/L	2
Oxford	11.00 pCi/L	2
Grand Ledge	7.00 pCi/L	2