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Radon mitigation in Tinley Park & the southwest suburbs

High radon? Give us a call.

Taking care of radon is what we do every day at American Radon Systems. We’re a family-owned company, and we’ll make the next steps easy.

We’ll come out, take a look, explain what your home needs, and give you the price. Then we’ll get the work on the schedule, usually within a week or two.

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State licensed · 700+ Google Reviews

What can we help you with?

My home tested high

Send your results and your town. We’ll take it from there.

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I’m buying a home

We’ll help you understand the cost and installation before closing.

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I’m selling a home

Text us your closing date. We’ll work out the next steps and timing.

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I’m helping a client

Send the property details and the best person to contact.

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American Radon Systems service vehicles at a suburban Illinois home
What We Do

Radon systems, repairs, and service

We install new systems and take care of existing ones, even if another company installed them.

Radon Mitigation Installation

State-licensed radon mitigation for homes with basements, crawl spaces, or slab foundations, including real-estate timelines.

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Radon Fan Replacement

A noisy or stopped fan? We’ll check the system and replace the fan if needed.

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Passive Radon System Activation

Already have a radon pipe but no fan? Many passive systems can be activated after a high test.

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System Relocation & Rerouting

Need a radon pipe or fan moved for a finished basement, remodel, or addition? We evaluate what can move, stay, or be reused.

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Buying or selling? See our real estate guidance or the realtor hub. Cost ranges live on the cost guide.

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How It Works

From the First Call to Done

Bill studies your home and helps plan your system. Jose turns that plan into clean, careful workmanship. Most jobs are finished in a single visit. Here's how it goes, step by step.

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Our customers say it best

Good work. Good people.

★★★★★ 5.0 · 700+ Google Reviews

700+ five-star Google reviews · Last verified 2026-08-13. See Google for the current count.

Read our reviews on Google ↗

★★★★★

“Bill and Jose were very professional, knowledgeable and friendly. Bill clearly explained how the Radon Mitigation System would work. They were on time and finished in the time frame that was stated. They were respectful of our house and did a wonderful job of clean up. We would highly recommend them!”
Ed and Cheryl TyrchaSeptember 2025 · Google review

★★★★★

“Bill and Jose were great! Arrived as scheduled. Cleaned up when finished Mitigation system looks good inside and outside. Outside isn’t visible from the street!”
Robert SchroederJuly 2024 · Google review

★★★★★

“Bill and Jose were fantastic from start to finish. They explained the process clearly and answered all my questions. The installation was quick, efficient, and mess-free—I barely noticed they were there! I highly recommend their radon mitigation services for anyone looking for professional and hassle-free work.”
Mark DreherMarch 2025 · Google review

★★★★★

“Honored warranty on a noisy fan, replaced it for free no questions asked. Very friendly staff, good communication and service.”
J DFebruary 2024 · Google review

★★★★★

“Top notch job. Bill and his crew installed a 2 suction point system, 1 point in the basement and 1 in the crawlspace addition. Along with the suction points, they laid down a vapor barrier in the crawl space, a new sump pump cover and caulked any cracks in the basement floor that were exposed. Bill and his crew were neat with thier work and had no issues answering and questions or concerns I had. Would definitely recommend to anyone who needs a radon system install.”
Andrew HartmanMay 2021 · Google review
Common Questions

FAQ

Have a question about your home? We’re happy to help.

Does American Radon Systems test for radon?
No. American Radon Systems specializes in mitigation. Illinois licenses testing and mitigation separately, and testing is handled by licensed measurement professionals. EPA also points out the conflict of interest when the same company tests a home and then sells the fix, so keeping the two apart is deliberate. Bill can help you understand a result and point you toward the right next step. If you already have elevated results, send them over with your address.
What is a radon mitigation system and how does it work?
Most homes use sub-slab depressurization: a fan and pipe pull soil gas from under the foundation and vent it outside above the roofline or in a code-compliant location. A U-tube manometer on the pipe shows the fan is creating suction. The exact layout depends on basements, crawl spaces, slabs, sumps, and finished spaces. Bill designs for the home you have, not a one-size layout.
How long does a typical radon mitigation install take?
Most residential installs are completed in a single visit, often a few hours once the plan is set. Bill looks at the home first so materials and routing are right. Real estate closings get scheduled around the calendar when you tell us the date early.
How much does radon mitigation cost?
Passive system activation starts at $900. A full new system runs $2,000 to $2,500 for most homes. A few homes need much more, up to $4,000 to $6,500 for a gravel crawlspace that has to be sealed or a home with more than one foundation type. Fan replacement on an existing system is $600. Bill looks at the home first, then gives you the price before work starts, and that number does not change unless you change the job. See our cost page for what moves the number.
What is your warranty?
If a fan we install fails during the first five years, we replace it at no cost to the homeowner. The service visit, labor, and replacement fan are all included. A replacement fan installed under warranty receives its own five-year term. Ordinary fan replacement outside warranty is $600, including the fan, the visit, the labor, and a new five-year term. No trip charge. Details, including transferability, are in your customer packet after install.
My radon fan is noisy. What does that mean?
A fan that becomes noticeably louder, rattles, grinds, hums, or sends vibration through the wall may be wearing out or may have another system issue that should be checked. We can typically come out the same day or the next day, including systems another company installed. There is no trip charge. A fan replacement is $600, including the fan, the visit, the labor, and a new five-year fan warranty, and Bill confirms that before the visit. If the failed fan is one we installed and it is within the five-year warranty, the service visit, labor and replacement fan are included at no cost. Call or text Bill’s cell at (815) 370-9682 with a clear photo of the fan and manometer.
Is (815) 370-9682 Bill’s cell phone?
Yes. That is Bill’s cell. Call, text, or send a photo of your fan, manometer, or test result. It is not a call center.
Are you state licensed in Illinois?
Yes. American Radon Systems holds Illinois radon mitigation license RNM2018212. Anyone hired to perform radon mitigation in Illinois must be appropriately state licensed. Illinois exempts a person doing measurement or mitigation in the dwelling where that person resides. Measurement and mitigation are separate professional license categories; American Radon Systems provides mitigation, not testing.
What areas do you serve?
American Radon Systems serves a focused area across Chicago’s south and southwest suburbs, including Tinley Park, Frankfort, Mokena, New Lenox, Manhattan, Orland Park, Orland Hills, Palos Park, Palos Heights, Oak Forest, Lemont, Homer Glen, Lockport, Crest Hill, and Shorewood.

Let’s take care of it.

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