Chandlerville, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Chandlerville in?

Chandlerville is in Cass County, EPA Zone 1.

Q: How much does radon mitigation cost in Chandlerville?

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

Cass County

EPA Zone 1

Situated in Cass County along the Illinois River valley, Chandlerville sits atop alluvial deposits over limestone bedrock that can contribute to radon accumulation. Testing data for this 62627 community remains limited, making individual radon testing essential for area homeowners. The region's river valley location and predominant basement construction in older homes create conditions where radon can collect in enclosed below-grade spaces.

Chandlerville, IL Radon Mitigation

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

Chandlerville, IL Radon Testing

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

Chandlerville Radon Facts

Key details about the radon risk profile for Chandlerville and the 62627 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Cass County, IL

Zip Code

62627

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Chandlerville and the 62627 zip code are located in Cass 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 Chandlerville, IL

What EPA Radon Zone is Chandlerville in?

Chandlerville and the 62627 zip code are in Cass 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 Chandlerville?

Radon mitigation in Chandlerville 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 Chandlerville?

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