Romeoville, IL Radon Mitigation and Testing

Q: What is the average radon level in Romeoville, IL?

Based on 1 user-submitted tests, the average radon level is 15.00 pCi/L.

Q: What EPA Radon Zone is Romeoville in?

Romeoville is in Will County, EPA Zone 2.

Q: How much does radon mitigation cost in Romeoville?

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

Avg: 15.00 pCi/L

Will County

EPA Zone 2

1 user test

Romeoville in Will County shows significantly elevated radon levels, with recent testing revealing an average of 15.0 pCi/L — nearly four times the EPA action threshold. This southwestern Chicago suburb sits atop glacial till deposits over limestone bedrock that create ideal conditions for radon accumulation in basement-equipped homes throughout zip code 60446. Immediate radon mitigation is strongly recommended for homes showing these dangerous levels.

15.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in Romeoville, IL. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Romeoville, IL Radon Mitigation

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

Romeoville, IL Radon Testing

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

Romeoville, Illinois Radon Levels

User-submitted radon test readings from homes in the Romeoville area.

Radon Level	City	Home Age	Foundation	Submitted
15 pCi/L	Romeoville, IL	21-50 Years	Full Basement	Sep 2020

Have a radon test result for Romeoville? Submit your reading to help other homeowners.

Romeoville Radon Facts

Key details about the radon risk profile for Romeoville and the 60446 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Will County, IL

Zip Code

60446

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

15.00 pCi/L

User Tests Submitted

Romeoville and the 60446 zip code are located in Will 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 Romeoville, IL

What is the average radon level in Romeoville, IL?

Based on 1 user-submitted test, the average radon level in Romeoville is 15.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Romeoville in?

Romeoville and the 60446 zip code are in Will 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 Romeoville?

Radon mitigation in Romeoville 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 Romeoville?

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