What Joliet Homeowners Should Know After Elevated Radon Results

If your home in the Joliet area tested elevated for radon, the first thing to know is that this is common in Will County. The area consistently shows some of the higher average radon concentrations in Illinois.

Understanding Your Result

The EPA action level for radon is 4.0 pCi/L. Results at or above that level are the signal to move forward with mitigation.

If your result was below 4.0 but noticeably elevated — say, in the 3.0 to 3.9 range — it is worth a conversation with a contractor. Many Will County homeowners in that range choose to mitigate, especially if they plan to sell in the next few years. It is simpler to handle it now than during a transaction.

Will County Context

Radon does not follow property lines. Homes in Joliet, Plainfield, Shorewood, Crest Hill, and Romeoville can all test differently on the same street depending on foundation type, slab condition, and soil composition. But the underlying geology throughout much of Will County produces more radon than average, and elevated results are a routine part of home inspections in this market.

This is not unusual, and it is not alarming. It is just something homeowners in this area deal with more often than those in some other parts of the state.

What the Fix Looks Like

Mitigation is not a complicated process. A contractor drills a suction point through the concrete slab, runs a pipe to the exterior of the home, and installs a small fan that runs continuously. The system draws radon from under the foundation before it can enter the living space.

Most installs in the Joliet area are done in a single visit. Radon levels drop within 24 to 48 hours of the system going on. The manometer on the pipe shows normal operation at a glance — there is not much to monitor after that.

ARS in the Joliet Area

American Radon Systems has been installing mitigation systems in the Joliet area for over 20 years. We are familiar with the full range of foundation types and construction styles common here — from older homes in central Joliet to newer slab-on-grade builds in Plainfield and Shorewood.

More about ARS service in the Joliet area →

Getting on the Schedule

If your result came back elevated, the practical next step is calling a licensed mitigation professional and getting a quote. For real estate transactions with a deadline, call early. It gives us more flexibility with scheduling.

Buying or selling with an elevated result? Buying a home with elevated radon has more on how that process works.

Not sure where to start? The start-here page walks through the process at no obligation.