Janesville, IA Radon Mitigation and Testing

Q: What EPA Radon Zone is Janesville in?

Janesville is in Bremer County, EPA Zone 1.

Q: How much does radon mitigation cost in Janesville?

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

Bremer County

EPA Zone 1

Situated in northeastern Iowa's Bremer County within the Waterloo Metro area, Janesville sits on glacial till deposits that can contribute to radon production. The community's housing includes both historic properties and newer residential development, many featuring full basements typical of Iowa's construction patterns. Testing data for zip code 50647 is currently limited, but homeowners should conduct radon testing given Iowa's high radon potential and the prevalence of basement construction that can concentrate radon gas.

Janesville, IA Radon Mitigation

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

Janesville, IA Radon Testing

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

Janesville Radon Facts

Key details about the radon risk profile for Janesville and the 50647 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Bremer County, IA

Zip Code

50647

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Janesville and the 50647 zip code are located in Bremer 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 Janesville, IA

What EPA Radon Zone is Janesville in?

Janesville and the 50647 zip code are in Bremer 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 Janesville?

Radon mitigation in Janesville 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 Janesville?

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 Iowa

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

City	Avg User Radon Level	Submissions
Waterloo	8.50 pCi/L	4
Ames	9.67 pCi/L	3
Fairfield	14.00 pCi/L	2
Mount Pleasant	12.00 pCi/L	2
Ottumwa	5.50 pCi/L	2
Iowa City	7.00 pCi/L	1
Muscatine	No submissions	0