Cottage Hills, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Cottage Hills in?

Cottage Hills is in Madison County, EPA Zone 2.

Q: How much does radon mitigation cost in Cottage Hills?

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

Madison County

EPA Zone 2

Situated in Madison County as part of the St. Louis Metro area, Cottage Hills sits on Mississippi River floodplain deposits over limestone bedrock. Testing data for the 62018 zip code area is currently limited, making professional radon testing essential for residents. The community's position near river bluffs and underlying Mississippian limestone creates moderate radon potential that can vary significantly between individual properties.

Cottage Hills, IL Radon Mitigation

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

Cottage Hills, IL Radon Testing

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

Cottage Hills Radon Facts

Key details about the radon risk profile for Cottage Hills and the 62018 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Madison County, IL

Zip Code

62018

Predicted Screening Level

2–4 pCi/L (Zone 2)

Cottage Hills and the 62018 zip code are located in Madison 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 Cottage Hills, IL

What EPA Radon Zone is Cottage Hills in?

Cottage Hills and the 62018 zip code are in Madison 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 Cottage Hills?

Radon mitigation in Cottage Hills 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 Cottage Hills?

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