Radon Mitigation, Without the Runaround
Residential radon mitigation and existing-system service across Chicago's south and southwest suburbs.
Serving Tinley Park, Lincoln-Way, Orland and Palos, Lemont, Homer Glen, Lockport, Crest Hill, Shorewood, and nearby communities.
State-licensed radon mitigation backed by more than 10,000 installed systems and nearly 25 years of combined mitigation experience.
Got a Result, a Closing Date, or a Weird Fan? Call Us.
Give us a call or send your information over. We will talk through what you know, what kind of foundation the home has, and what the next step should be.
Looking at the home tells us how the system should be laid out. If you are still figuring out testing, start with our testing guidance or just call Bill.
Trying to understand budget ranges first? Read our radon mitigation cost guide.
Radon Mitigation Installation
For homes with an elevated radon result that need a full mitigation system.
State-licensed radon mitigation for homes with basements, crawl spaces, or slab foundations, plus real-estate timelines. Bill personally evaluates the home before the system is designed and quoted. More than 10,000 radon systems installed and nearly 25 years of combined radon mitigation experience shape how we plan foundation type, finished areas, crawl spaces, sump configuration, exterior routing, fan location, sound, appearance, and future remodeling plans.
- Sub-slab depressurization (SSD)
- Block wall suction systems
- Crawl-space vapor barrier and sub-membrane suction when needed
- Sump pump integration
- System monitoring with U-tube manometer
- Post-install verification test referral
- Five-year complete fan replacement coverage
All Illinois mitigation systems must be installed by a state licensed mitigator. American Radon Systems holds Illinois Radon Mitigation License RNM2018212.
Radon Fan Replacement
For existing systems where the fan is noisy, dead, or not pulling correctly, including systems installed by another company.
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. A properly working radon fan is not perfectly silent. Most produce a soft, steady sound of air moving through the pipe. If the system becomes completely silent, check the U-tube manometer to see whether suction is still present. We can typically come out the same day or the next day in most cases.
- Same-day or next-day fan replacement in most cases
- Full-system check, not just the fan
- Five-year complete fan replacement coverage
- Pipe sealing and radon system repairs
- Text Bill a clear photo of the fan and manometer
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.
Passive Radon System Activation
For homes with builder-installed passive piping that still tested high.
Already have a radon pipe but no fan? Many passive systems can be activated after a high test. Bill can inspect the route, confirm whether the piping is usable, add the right fan, and make sure the activated system is pulling correctly.
- Passive pipe inspection
- Fan sizing and installation
- Discharge and routing check
- Manometer setup
- Existing pipe evaluation
- Clear next-step guidance
System Relocation & Pipe Rerouting
For finished basements, additions, and homes where the current route no longer fits the space.
An existing radon system does not always need to be torn out and started over. Bill looks at the existing system, the home, and the remodeling plan before recommending what should move, what can stay, and what can be reused.
- Interior and exterior pipe rerouting
- Fan relocation
- Full system relocation when needed
- System redesign around living space
- Usable component evaluation
We do not assume every system needs to be replaced. Not every system can be moved, and not every component can be reused.
Radon System Inspection
For homes that already have a radon system and you want an honest look at the fan, gauge, and visible parts.
Not sure if an existing system is working? We can check the fan, manometer, pipe route, sump lid, and obvious suction issues, then tell you honestly whether anything needs repair or replacement.
- Fan and manometer check
- Visible pipe review
- Sump lid and seal review
- Repair or replacement guidance
- Clear next-step guidance on testing if needed
A checkup looks at the system hardware. A radon test is still how you know the indoor level.
Experience with the way suburban homes are actually built
Radon systems are not designed from a single template. A finished basement needs a different route than an open utility room. A basement and attached crawl space require separate suction areas. Additions, split levels, slabs, walkouts, lookouts, passive piping, and existing systems all change the plan. Bill evaluates those details before the system is quoted.
A basement and an attached crawl space require separate suction points or suction areas. The design decision is how those components are routed and connected, not whether the crawl space can be ignored.
In finished or higher-detail homes, routing, paint color, fan placement, sound, and the view from the street may carry extra weight. Those considerations can be addressed during the design instead of after the system is installed.
If Your Radon Fan Gets Loud, It May Be Time for Replacement
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. If the system becomes completely silent, check the U-tube manometer to see whether suction is still present.Call or text Bill's cell at (815) 370-9682 with a clear photo of the fan and the U-tube manometer.
A properly working radon fan is not perfectly silent. Most produce a soft, steady sound of air moving through the pipe. A change in sound is worth checking.
We can typically come out the same day or the next day. Text Bill a clear photo of the fan and the U-tube manometer.
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.
Have a loud fan, a flat manometer, or a system that does not look right? Give us a call. We can usually tell pretty quickly what the next step should be.
Already have a radon system?
You do not have to know who installed it or exactly what is wrong before calling. American Radon Systems checks, repairs, activates, reroutes, relocates, and improves existing systems throughout the communities we serve.
What the System Is Actually Doing
Radon is measurable and fixable. These two views show why testing matters and why a mitigation system is designed around the whole home, not just one visible crack.
Pressure under the home finds small openings
Radon usually is not coming from one single hole. Pressure under the home lets soil gas move upward through porous concrete itself, sump openings, crawl spaces, cracks, and small gaps around pipes.
The fan creates the easier path out
A mitigation fan creates a lower-pressure path under the home, so radon is pulled into the pipe before it enters the living space, then vented above the roofline.
Have Your Test Result?
If your test came back high, give Bill a call. He'll stop out, take a look at the home, and tell you what makes sense. Buying or selling? Call during the inspection window or as soon as the buyer's radon test comes back elevated.
Not sure where to start? Not sure? Start Here → · Buying or selling with radon · Realtor paths
Mitigation Questions, Straight Answers
What the system is, how long install takes, sump sealing, and whether we test (we do not sell testing).
How does radon get into a house?
Pressure under the home can pull soil gas up through porous concrete, sump openings, crawl spaces, cracks, seams, and small gaps around pipes. It is usually not one single hole. That is why systems are designed around the whole foundation, not just a visible crack.
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 house.
Does American Radon Systems test for radon?
No. We are a state licensed mitigation company. Illinois licenses testing and mitigation separately. We design, install, repair, and warranty mitigation systems, and we educate about testing. If you need a test, we can point you toward appropriate options. 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 house 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.
Does the radon fan run all the time?
Yes. A healthy mitigation fan runs continuously. A light steady hum can be normal. If it gets loud, rattles, or goes silent, call Bill. Continuous run is how the system keeps suction under the home.
Can you mitigate basements, crawl spaces, and slab homes?
Yes. Many Illinois homes need more than one suction point, especially split-levels and three-step ranches with a basement plus crawl space. Slab homes get their own approach. The goal is every foundation area covered and a clean pipe route that looks like it belongs.
Is sealing the sump necessary for radon mitigation?
Often yes. An open sump is a common soil-gas path. We typically seal the sump with a lid that still allows pump service and access. Sealing alone is not a full mitigation system, but a proper lid is usually part of a good design when a sump is present.
Will the exterior pipe look bad on my house?
We plan routing carefully. Where the layout allows, pipe may go through a garage attic or interior chase and out the roof. When the cleanest path is outside, it goes on a side or rear elevation and is finished to read more like a downspout than a mistake on the front of the home.
How much does radon mitigation cost?
National ranges for a standard sub-slab system are often roughly $800 to $2,500, with crawlspace and complex foundations higher. Chicago-area work depends on foundation type, routing, sump details, and finished space. We do not publish a fake fixed price because Bill looks at the home first, then prices before work starts. See our cost page for honest ranges and 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 a normal paid service call with no separate trip charge; Bill explains the price before work begins. Details, including transferability, are in your customer packet after install.
Why does my newer home have a radon pipe but no fan?
That is usually a passive radon system, rough-in piping required in many newer Illinois homes. It is not the same as a completed active system. If a test is elevated, activation adds the right fan and finishes the system so it pulls correctly. Bill checks whether the existing pipe is usable first.
Are you state licensed in Illinois?
Yes. American Radon Systems holds Illinois radon mitigation license RNM2018212. In Illinois, mitigation must be done by a state licensed mitigator. Measurement (testing) is a separate license. We do mitigation.
Can I do radon mitigation myself?
In Illinois, professional mitigation must be performed by a state licensed mitigator. A correct system needs the right suction design, sealing details, electrical, and termination. We do not recommend DIY mitigation as a substitute for licensed work.