Gardner, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Gardner in?

Gardner is in Grundy County, EPA Zone 1.

Q: How much does radon mitigation cost in Gardner?

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

Grundy County

EPA Zone 1

Positioned in Grundy County in the southern suburban reaches of the Chicago metro, Gardner rests on glacial till deposits that create soil conditions highly favorable for radon gas production and migration. Testing data for zip code 60424 remains limited, so residents should prioritize radon measurement given the area's geological context. The community's predominantly single-family homes with full basements provide the enclosed below-grade spaces where radon accumulates most readily.

Gardner, IL Radon Mitigation

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

Gardner, IL Radon Testing

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

Gardner Radon Facts

Key details about the radon risk profile for Gardner and the 60424 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Grundy County, IL

Zip Code

60424

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Gardner and the 60424 zip code are located in Grundy 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 Gardner, IL

What EPA Radon Zone is Gardner in?

Gardner and the 60424 zip code are in Grundy 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 Gardner?

Radon mitigation in Gardner 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 Gardner?

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 Illinois

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

City	Avg User Radon Level	Submissions
Buffalo Grove	6.10 pCi/L	10
Crystal Lake	7.25 pCi/L	8
Lake Zurich	6.00 pCi/L	7
Grayslake	5.00 pCi/L	7
New Lenox	10.17 pCi/L	6
Park Ridge	7.00 pCi/L	6
Arlington Heights	6.17 pCi/L	6
Waterloo	9.20 pCi/L	5
Palatine	7.80 pCi/L	5
Round Lake	7.80 pCi/L	5
Northbrook	6.20 pCi/L	5
Mchenry	11.00 pCi/L	4
Dekalb	8.75 pCi/L	4
Columbia	8.00 pCi/L	4
Lisle	7.25 pCi/L	4
Normal	7.25 pCi/L	4
Antioch	7.00 pCi/L	4
Elk Grove Village	7.00 pCi/L	4
Aurora	6.75 pCi/L	4
Hoffman Estates	6.75 pCi/L	4