Walled Lake, MI Radon Mitigation and Testing

Q: What is the average radon level in Walled Lake, MI?

Based on 3 user-submitted tests, the average radon level is 6.30 pCi/L.

Q: What EPA Radon Zone is Walled Lake in?

Walled Lake is in Oakland County, EPA Zone 2.

Q: How much does radon mitigation cost in Walled Lake?

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

Avg: 6.30 pCi/L

Oakland County

EPA Zone 2

3 user tests

Walled Lake is located in Oakland County, Michigan. With 3 user-submitted readings averaging 6.30 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 48390 zip code.

6.30

pCi/L average

Above EPA Action Level

Based on 3 user-submitted radon tests for homes in Walled Lake, MI. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Walled Lake, MI Radon Mitigation

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

Walled Lake, MI Radon Testing

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

Walled Lake, Michigan Radon Levels

User-submitted radon test readings from homes in the Walled Lake area.

Radon Level	City	Home Age	Foundation	Submitted
2 pCi/L	Walled Lake, MI	21-50 Years	Full Basement	Aug 2021
7 pCi/L	Walled Lake, MI	21-50 Years	Full Basement	Apr 2017

Have a radon test result for Walled Lake? Submit your reading to help other homeowners.

Walled Lake Radon Facts

Key details about the radon risk profile for Walled Lake and the 48390 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Oakland County, MI

Zip Code

48390

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

6.30 pCi/L

User Tests Submitted

Walled Lake and the 48390 zip code are located in Oakland 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 Walled Lake, MI

What is the average radon level in Walled Lake, MI?

Based on 3 user-submitted tests, the average radon level in Walled Lake is 6.30 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Walled Lake in?

Walled Lake and the 48390 zip code are in Oakland 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 Walled Lake?

Radon mitigation in Walled Lake 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 Walled Lake?

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