Waukesha, WI Radon Mitigation and Testing

Q: What is the average radon level in Waukesha, WI?

Based on 2 user-submitted tests, the average radon level is 5.50 pCi/L.

Q: What EPA Radon Zone is Waukesha in?

Waukesha is in Waukesha County, EPA Zone 1.

Q: How much does radon mitigation cost in Waukesha?

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

Avg: 5.50 pCi/L

Waukesha County

EPA Zone 1

2 user tests

Situated in southeastern Wisconsin's Waukesha County, this Milwaukee Metro community experiences elevated radon levels typical of the region's glacial geology. Current testing data reveals an average reading of 5.5 pCi/L, which exceeds the EPA's 4.0 pCi/L action level. The area's mix of basement-equipped homes from various eras makes radon mitigation particularly important for homeowners in zip codes 53186, 53188, and 53189.

5.50

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Waukesha, WI. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Waukesha, WI Radon Mitigation

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

Waukesha, WI Radon Testing

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

Waukesha, Wisconsin Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
5 pCi/L	Waukesha, WI	0-20 Years	Partial Basement	Aug 2019
6 pCi/L	Waukesha, WI	0-20 Years	Full Basement	Apr 2017

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

Waukesha Radon Facts

Key details about the radon risk profile for Waukesha and the 53186 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Waukesha County, WI

Zip Code

53186

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

5.50 pCi/L

User Tests Submitted

Waukesha and the 53186 zip code are located in Waukesha 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 Waukesha, WI

What is the average radon level in Waukesha, WI?

Based on 2 user-submitted tests, the average radon level in Waukesha is 5.50 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 Waukesha in?

Waukesha and the 53186 zip code are in Waukesha 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 Waukesha?

Radon mitigation in Waukesha 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 Waukesha?

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