Berwick, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Berwick in?

Berwick is in Warren County, EPA Zone 1.

Q: How much does radon mitigation cost in Berwick?

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

Warren County

EPA Zone 1

Berwick lies in Warren County in west-central Illinois, where glacial till over Pennsylvanian bedrock creates moderate radon potential. Testing data for this small community in ZIP 61417 is currently limited, encouraging homeowners to conduct individual radon measurements. The area's mix of older farmhouses and newer rural homes typically feature basements or partial basements where radon accumulation occurs.

Berwick, IL Radon Mitigation

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

Berwick, IL Radon Testing

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

Berwick Radon Facts

Key details about the radon risk profile for Berwick and the 61417 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Warren County, IL

Zip Code

61417

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Berwick and the 61417 zip code are located in Warren 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 Berwick, IL

What EPA Radon Zone is Berwick in?

Berwick and the 61417 zip code are in Warren 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 Berwick?

Radon mitigation in Berwick 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 Berwick?

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