Radon Mitigation in Lombard, IL
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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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Many Lombard homes are mid-century ranches and raised ranches with full basements — generally straightforward for sub-slab depressurization. Finished basements add work: the installer may route pipe through a closet or the garage to keep it out of living space. Ask where the pipe and fan will go and whether the fan is outside the living space, as EPA recommends.
What IEMA's radon test records show for Lombard
IEMA publishes radon results reported by licensed measurement professionals. For test addresses in Lombard, we counted 2,840 valid tests on homes without a mitigation system; 38% were at or above EPA's 4.0 pCi/L action level and 15% 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 Lombard 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 Lombard and what it means for radon
About 44,476 people lived in Lombard in the 2020 Census. The median home there was built around 1971, and the biggest share of its housing went up before 1970 (48% before 1970, 26% from 1970–1989, 17% from 1990–2009, 8% since 2010). Roughly 55% of homes are detached single-family houses and 7% are townhouses or other attached single-family homes; about 71% of households own their home.
About 8% of Lombard homes were built since 2010. Illinois' Radon Resistant Construction Act has required a passive radon pipe in new homes since June 1, 2013, so a newer house may already have a capped vent pipe. If it tests high, a licensed mitigator can often add a fan to that pipe instead of building a whole new system — usually the cheapest fix.
With 48% of homes built before 1970, many Lombard basements have older block walls, floor drains or additions on slab or crawlspace. Those openings can affect where a mitigator puts the suction point and whether a crawlspace needs its own membrane, so ask each contractor how they'll treat every foundation type in the house.
Next steps in Lombard
- 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
Elmhurst Glen Ellyn Addison Villa Park
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.