Not sure where to start?
Pick the one that sounds most like you.
What’s going on at your home?
You don’t need to know what kind of system you need before you call.
Where to get a radon test
A test kit from your county is free or $8.
- Suburban Cook County residents can get a free kit by mail from the Cook County Department of Public Health. Expect some delay. Checked October 5, 2026.
- Will County residents can buy an $8 kit at the health department's Joliet, Bolingbrook and Monee offices. The price includes lab analysis and return postage. Checked October 5, 2026.
- Hardware stores and online sellers sell home test kits too. Keep the house closed up the way the package says.
- If you’re buying or selling, use a state-licensed radon tester. That’s a measurement professional licensed by IEMA-OHS, the Illinois Emergency Management Agency and Office of Homeland Security. Your inspector or realtor can give you a name.
- To read more about testing and what the results mean, see the EPA radon guide at epa.gov/radon.
If your result is 4.0 pCi/L or higher, call us.
Call Bill
Bill answers the phone himself, Monday through Sunday, 7 a.m. to 7 p.m. There’s no pressure to buy anything.
What we’ll ask when you call
We’ll ask your town, your test result, and if you have a closing date or other deadline. If you need a system, Bill comes out to see your home before he gives you a final price.
If radon came up in a home sale, see our buying or selling guidance. Agents can use the buyer-side or listing-side realtor pages. If you are comparing companies, use the Illinois checklist. To see how install day goes, read what to expect during mitigation.
Have your test result? Send your info and Bill will call you →
Common first questions
What people usually ask first.
What is radon?
Radon is a naturally occurring radioactive gas that comes from soil and rock under the home. You cannot see it or smell it. The only practical way to know the level in a specific home is to test.
Is radon fixable?
Yes. Elevated radon is a common, fixable home issue. A properly designed mitigation system creates a lower-pressure path under the home so soil gas is pulled into a pipe and vented outside. Most installs are finished in one visit after Bill has looked at the home.
How do I test my home for radon?
The cheapest way is a county kit: free by mail if you live in suburban Cook County, or $8 in Will County. Kits come in short-term and long-term versions, and a reusable radon detector is the option if you want to watch your level year-round. In Illinois, test each lowest structural area suitable for occupancy; that can include an unfinished basement that could be used regularly without renovation. Follow the exact device instructions and the Illinois placement and closed-building rules that apply to the test. For a real-estate transaction, use an Illinois-licensed measurement professional, and we can point you to one.
Does American Radon Systems test for radon?
We have links to free and $8 radon test kits, based on which county you live in. Cook County mails suburban residents a free kit, and Will County sells one for $8 at its offices. If you want to watch your level year-round, we recommend a reusable radon detector you keep. If your result is high, call Bill or fill in your info for a quote. The kit does the measuring, not the person who would sell you the fix. Buying or selling? A sale usually needs a licensed professional test, and we will point you to one.
My home tested high for radon. What do I do next?
Stay calm. Elevated radon is common and fixable. Note the number, where the test was placed, and any closing date. Then call Bill at (815) 370-9682 (that is his cell), or send your info on the contact form. You do not need to know what system you need. Bill looks at the home, explains the next step, and prices before work begins.
Is (815) 370-9682 Bill’s cell phone?
Yes. That is Bill’s cell. Call, text, or send a photo of your fan or manometer. It is not a call center.
I am buying a house that tested high for radon. What do I do next?
Call Bill with the inspection result, property address, and inspection deadline if you have one. He can walk through the number and quote the home under contract. That gives you a real number for the conversation with your agent and attorney. Decisions about credits or concessions belong with them, and a firm quote makes that conversation easier.
What should a seller do if the buyer’s radon test comes back high?
Call early. Bill can look at the home, give a real quote, and help you understand the schedule. If you decide to install, the radon issue gets handled, documented, and removed as an open repair item instead of sitting as a negotiation problem near closing. Talk with your agent or attorney about the contract side.
What should I have ready when I call or send my info?
Property address, your radon result if you have one, and any closing date or deadline. Photos of an existing fan or manometer help for repair calls. You can call Bill’s cell at (815) 370-9682 or use the contact form.