Radon Mitigation in Carol Stream, IL
High radon result? We connect DuPage homeowners with independent, IEMA-licensed mitigation contractors. Free, no obligation.
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- 1. Tell us what you needAnswer a few quick questions in our short form. It takes about a minute.
- 2. We match you with one local proWe pass your request to one independent radon mitigation contractor who works in your area.
- 3. They contact youThe pro reaches out to set up a visit and a written quote. You decide; there's no obligation.
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- We only refer to IEMA-licensed radon mitigators
Got a radon result for a Carol Stream home? Below is what public data says about Carol Stream's homes, the local rules that matter, and how to get matched with one licensed local pro for free.
What IEMA's radon test records show for Carol Stream
IEMA publishes radon results reported by licensed measurement professionals. For test addresses in Carol Stream, we counted 1,522 valid tests on homes without a mitigation system; 28% were at or above EPA's 4.0 pCi/L action level and 9% were at or above 8.0 pCi/L.
For comparison, 42% of tests were at or above 4.0 pCi/L across the 26 DuPage-area and nearby cities we pulled from the same data, so Carol Stream is below that average. These are mostly real-estate and homeowner-ordered tests, not a random sample, so they can't predict your house — neighbors on the same block can test very differently. The only way to know is to test your own home.
Housing in Carol Stream and what it means for radon
About 39,854 people lived in Carol Stream in the 2020 Census. The median home there was built around 1984, and the biggest share of its housing went up between 1970 and 1989 (15% before 1970, 55% from 1970–1989, 28% from 1990–2009, 2% since 2010). Roughly 48% of homes are detached single-family houses and 18% are townhouses or other attached single-family homes; about 67% of households own their home.
Nearly half of Carol Stream's homes (55%) date from 1970–1989, which includes a lot of split-levels and raised ranches. Those often combine a basement slab with a crawlspace or slab-on-grade section, and a good system design accounts for both.
About 18% of Carol Stream homes are townhouses or other attached units. If you live in one, check your HOA rules on exterior pipes and fans before you get quotes, and ask whether neighbors have already installed systems.
Next steps in Carol Stream
- If you haven't, run a short-term test in the lowest lived-in level (EPA guidance). For a home sale, use a licensed measurement professional.
- If you're at or above 4 pCi/L, get a quote from an IEMA-licensed mitigator — Illinois requires the license for paid mitigation work.
- After installation, retest to confirm the level dropped.
Nearby areas
Wheaton Glendale Heights West Chicago Bloomingdale
Also see: cost guide · FAQ
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DuPage Radon Mitigation Referral is a referral service, not a contractor. We only refer radon requests to IEMA-licensed mitigation professionals.