Illinois radon mitigation license RNM2018212. Orland Hills, Cook County.
Radon mitigation in Orland Hills
Orland Hills is a small village on the suburban Cook County list, which means the county will mail you a radon kit for free once you fill out its short form. Set it out, mail it back, wait for the lab. A reusable detector is the no-waiting version.
Text Bill the number and he’ll tell you what it means, free. High? Bill comes out, takes a look at the foundation and the finished spaces, and gives you the price. Orland Hills is a few minutes from the shop in Tinley Park.
Finished areas and a clean route
Orland Hills work often comes down to getting a solid system in without disrupting finished areas. Bill looks at the foundation and the finished spaces before the route is set.
Fifty-one tests is a thin file
Orland Hills has the thinnest file of any town on this site. The IEMA layer lists 51 valid Cook County tests for the village with no mitigation system recorded, counted 14 October 2026. The median is 1.8 pCi/L. Five of the 51, or 9.8%, were at or above 4.0.
Fifty-one tests will not support a claim that the village is low. Next door, Orland Park’s Cook County set is 1,272 tests with 27.5% at or above 4.0. The village number and the neighbor’s number are both real, and neither one is your home.
Why a one in ten share is not a pass
Five of 51 is about one in ten, less than half the Cook County share of about one in five. With a file that small, five more high tests next year would double the village share. Orland Hills shares streets and soil with Orland Park, whose 1,272 tests ran above the county. The honest reading is that Orland Hills has not been tested enough to say much either way, which is an argument for the free kit, not against it.
Nearby pages
The next pages west and south:
Orland Hills questions
Should I trust a 9.8% figure from 51 tests?
Treat it as a small set. Five of 51 valid tests were at or above 4.0, and the median was 1.8. That is not a clean bill for an untested home in Orland Hills.
Is the Orland Park page the one I want?
Only if the home is in Orland Park. Orland Hills has this page. The mitigation crew is the same.
Where can I get a radon test kit in Orland Hills?
Fill out the Cook County Department of Public Health request form and the kit comes to your Orland Hills address by mail, free. The county warns of delays, so order it early.
How long does a radon system last?
The piping lasts as long as the home. The fan is the only moving part, and when it wears out, replacing it is a short visit.
Sources
- IEMA-OHS Public Radon Dashboard
Orland Hills, counted 14 October 2026: 51 valid Cook County tests, median 1.8, 9.8% at or above 4.0. Five tests were at or above 4.0. No mitigation system on these records.
- IEMA-OHS, Radon in Illinois
IEMA’s statewide page. Small villages like Orland Hills are on the same map.
- Cook County Department of Public Health, radon test kit request
The free mailed kit an Orland Hills address can request.
- EPA, radon action level
EPA’s action level, the 4.0 used for the five-of-51 figure.