Illinois radon mitigation license RNM2018212. Frankfort, Will County.
Radon mitigation in Frankfort
Almost every Frankfort address is Will County, and Will County sells its radon kit for $8: the kit, the prepaid lab fee, and the report, picked up at the health department in Joliet, Bolingbrook, or Monee. A rare Frankfort parcel on the Cook County side can ask for the free Cook County mail-in kit instead. A reusable detector does not care which county you are in.
Text Bill the number and he’ll tell you what it means, free. High result? Bill comes out, looks at the foundation, and gives you the price before any work is scheduled. Frankfort split-levels and raised ranches get a look at the crawl space too, because that is often where the system wants to go.
What we need from a Frankfort home
Tell us the address, the result, and whether a builder left a radon pipe with no fan. Frankfort and Frankfort Square have a lot of split-levels and raised ranches, where the crawl space and the lower level decide where the system wants to go. Most installs finish in one visit.
Buying or selling? That test comes from an Illinois-licensed measurement professional, and your agent or attorney knows what the contract asks for.
A Frankfort slab that needed two suction points
One Frankfort job in our notes had 12 inches of solid concrete slab. One suction point could not pull enough air across a slab that thick, so the system got a second one, and the two runs joined into one pipe and one fan. That is the kind of thing Bill is looking for when he comes out: not the town, the slab under your feet.
Frankfort’s 1,009 tests against Will County
Frankfort is one of the bigger town sets in the IEMA layer: 1,009 valid Will County tests with no mitigation system on the record when we counted on 14 October 2026. The median is 2.9 pCi/L, and 36.9% were at or above 4.0. Two more Frankfort records are filed under Cook County, too few to publish a rate.
Will County in the same filter runs a median of 3.5 with 44.9% at or above 4.0, so Frankfort comes in under the county on both numbers. Put plainly, a little more than one Frankfort test in three hit the action level, against about nine in twenty county-wide. That lower share still works out to hundreds of Frankfort homes in the file at 4.0 or higher.
Nearby pages
Frankfort shares roads with these pages:
Frankfort questions
Is 2.9 pCi/L the number for my Frankfort home?
No. 2.9 is the median of 1,009 Will County tests in the IEMA layer, not a reading from your home. 36.9% of those tests were at or above 4.0. Test the home you live in.
Which $8 kit office is for Frankfort?
Will County sells the $8 kit at the Joliet, Bolingbrook, and Monee health department offices. The kit includes return postage, the lab, and a written report.
My Frankfort home is newer. Can it still have high radon?
Yes. Radon comes from the soil, not the age of the home. Newer Illinois homes usually have a passive radon pipe with no fan on it. If the home tests high, adding a fan to that pipe is often the whole job.
Sources
- IEMA-OHS Public Radon Dashboard
Frankfort, counted 14 October 2026: 1,009 valid Will County tests, median 2.9, 36.9% at or above 4.0. Two Cook County records were too few to rate. No mitigation system on these records.
- IEMA-OHS, Radon in Illinois
State radon page. Frankfort homes are among those it says should be tested.
- Will County Health Department, radon program
The $8 kit most Frankfort addresses use.
- EPA, radon action level
The 4.0 pCi/L action level the Frankfort share is measured against.