Illinois radon mitigation license RNM2018212. Shorewood, Will County.
Radon mitigation in Shorewood
Shorewood is Will County, west of Joliet, and the kit to start with is the $8 one from the Will County Health Department. It is sold at the Joliet, Bolingbrook, and Monee offices, and the $8 includes the lab and the report. A reusable detector keeps reporting after the first week, which matters in a town where half the tests on file came back high.
Text Bill the number and he’ll tell you what it means, free. If it is 4.0 or higher, Bill drives out, looks at the home and the builder pipe if there is one, and gives you the price. On a newer Shorewood home that pipe is the first thing he checks.
A builder pipe is not a system
Shorewood grew a lot after June 1, 2013, the date Illinois started requiring passive radon piping in new one-family and two-family homes under 420 ILCS 52. If your builder left you that pipe, it still has no fan. A test at 4.0 or higher is when activation gets a look. If the pipe cannot take a fan, the quote is for a full system. Older Shorewood homes with a sump get the usual suction-point design.
Shorewood’s median is the action level
Shorewood is the one town on this site whose median sits exactly on the EPA action level. Our 14 October 2026 count of the IEMA layer found 756 valid Shorewood tests with no mitigation system noted. The median is 4.0 pCi/L, and 50.4% were at or above it.
Lockport, to the northeast past Crest Hill, has an 880-test median of 3.5. Will County overall is also 3.5, from 27,611 tests, and 44.9% of those were at or above 4.0. Shorewood’s recorded tests sit higher than both, and neither figure is a reading for your home.
Half
Half of the 756 Shorewood tests on file reached 4.0 or higher. Will County as a whole is about nine in twenty, so Shorewood runs a step above its county, and it is the only one of the fifteen towns here where the typical result is itself a fix-it number. New Lenox is the only town on this site with a higher median. If a Shorewood home has never been tested, the file says the odds are roughly a coin flip, and the kit costs $8.
Nearby pages
Shorewood is west of these pages:
Shorewood questions
Does a 4.0 median mean Shorewood homes should all be mitigated?
No. It means the middle of 756 valid tests was 4.0 pCi/L, and 50.4% were at or above 4.0. EPA recommends fixing at 4.0 or higher. The test in your home is the one that counts.
We have a builder pipe and no fan. What now?
Test. At 4.0 or higher, Bill looks at the pipe. When that pipe can be used, activation is the smaller job. If it cannot, the quote is for a full system. The price block on this page has the figures.
Who does the radon test when a Shorewood home is sold?
An Illinois-licensed measurement professional. The county kit and a detector are for your own information. Bill reads either result and explains what a fix would take.
Where can I get a radon test kit in Shorewood?
Shorewood is Will County, so it is the county’s $8 kit, sold at the Joliet, Bolingbrook, and Monee health department offices. Joliet is the office next to Shorewood.
We are moving into a new build in Shorewood. Should we test?
Yes. A builder pipe does not tell you the level. A test does, and the $8 county kit is the easy way to get one.
Sources
- IEMA-OHS Public Radon Dashboard
Shorewood, counted 14 October 2026: 756 valid Will County tests, median 4.0, 50.4% at or above 4.0, none with a mitigation system noted.
- IEMA-OHS, Radon in Illinois
IEMA’s Illinois radon page, the state source for the Shorewood figures.
- Will County Health Department, radon program
Shorewood’s $8 kit, sold at the three Will County offices.
- EPA, radon action level
EPA on the 4.0 pCi/L action level, which is also Shorewood’s median.
- Illinois Radon Resistant Construction Act, 420 ILCS 52/20
Why so many Shorewood homes have a pipe and no fan: section 20, in force since June 1, 2013 (P.A. 97-953), requires passive radon resistant construction in new one-family and two-family homes.