Radon Mitigation & Testing in Shorewood
Shorewood's subdivisions went up fast — nearly 38% of the village's homes were built between 2000 and 2009 alone — and almost all of them landed in the gap between radon being understood and Illinois requiring builders to do anything about it.
A village built inside the radon code gap
The median Shorewood home dates to 2001, and 37.9% of the village's housing went up between 2000 and 2009 — the heart of the boom that filled in the DuPage River corridor west of Joliet. Illinois didn't require radon-resistant construction in new homes until June 1, 2013. Run those dates together and the conclusion is blunt: nearly all of Shorewood was built by crews who knew radon existed and weren't yet required to defend against it. Full basements, tight modern envelopes, no vent pipe. That combination is precisely what an active sub-slab system was designed for.
Owners, not renters — which makes the math easy
Shorewood is about as owner-occupied as a town gets: 95.5% of its roughly 6,600 occupied homes, with a median household income around $122,000. If you own the basement you breathe in every night, a one-time install in the $1,200–$1,700 range that permanently drops a radioactive exposure is among the best health-per-dollar spends available on the house. And newer construction is the cheap end of mitigation: one clean suction point, an unfinished utility corner to route through, done in a day with a permit from the Village of Shorewood Building Department.
Test first — the river doesn't decide, the soil does
Neighbors along the DuPage River sometimes assume the riverside ground drains radon away, or concentrates it. Neither is reliable: radon rides on the glacial soil under the subdivision, and readings jump house to house even on one cul-de-sac. Will County's official Zone 2 "moderate" label predicts 2–4 pCi/L, while state data shows over 40% of tested Illinois homes at or above 4.0. An $8 county kit or a licensed 48-hour test settles your house's number for less than dinner out.
Shorewood built fast. Testing is faster.
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