Radon Mitigation in Glen Carbon, IL

A radon mitigation system in Glen Carbon, IL is a sealed pipe and a continuously running fan that pull radon from under the house and release it outdoors, bringing the home below the EPA action level of 4.0 pCi/L. Air Sense Environmental, IEMA-licensed (#RNM20232346) and NRPP-certified, designs each Glen Carbon system around the foundation in front of it.

Does a Glen Carbon home need radon mitigation?

The trigger is the test result: at or above 4.0 pCi/L the EPA recommends fixing a Glen Carbon home, and between 2 and 4 pCi/L it suggests considering it. Madison County is in EPA Radon Zone 2, where the predicted average indoor radon level is 2 to 4 pCi/L, and individual Glen Carbon homes routinely test well above the 4.0 pCi/L action level. The Illinois Department of Public Health reports that about 41 percent of Illinois homes tested have come back at or above 4.0 pCi/L, and Illinois requires radon professionals to hold an IEMA license.

Glen Carbon began as a coal-mining village, and its name means valley of coal; today most of its homes are 1980s to 2010s subdivision construction on poured basements next to Edwardsville. If the home has not been tested yet, start with the St. Louis radon testing page.

Which radon mitigation system fits a Glen Carbon home?

The system follows the foundation:

• Basement slab: sub-slab depressurization, the most common system in Glen Carbon
• Crawl space: sub-membrane depressurization under a sealed vapor barrier
• Sump pit: a sealed sump lid tied into the system, covered in the sump pump radon mitigation guide
• Slab-on-grade: a suction point routed through a garage, closet or exterior wall
• Mixed foundations: multiple suction points balanced on one fan

The Glen Carbon homes Air Sense Environmental mitigates most often:

• 1980s to 2010s subdivision homes on poured basements
• Older homes in the original village near Main Street
• Homes with finished basements used as living space
• Villas on slab foundations

How is a radon mitigation system installed in Glen Carbon?

1. Assessment and diagnostics. The foundation, sump, cracks and pipe route are checked during a free in-home estimate.
2. Suction point. A core hole through the slab, or a sealed membrane in a crawl space, gives the fan something to pull from.
3. Pipe and fan. PVC pipe runs to a fan mounted outside the living space, in the attic, garage or on an exterior wall, and vents above the roofline.
4. Sealing. Cracks, the sump lid and other openings are sealed so the fan can hold suction.
5. Manometer and verification. A U-tube manometer shows the system is running, and a post-mitigation test proves the result.

Most Glen Carbon installations are completed in a single day. The full walk-through is on the radon mitigation system installation page.

How much does radon mitigation cost in Glen Carbon, IL?

Foundation type, suction points and fan size set the price of a Glen Carbon system, which is why quotes follow a free in-home assessment. The St. Louis radon mitigation cost guide lists the current ranges by system type.

How do you know the radon mitigation system worked?

A post-mitigation radon test is the only proof. Air Sense Environmental includes it, designs Glen Carbon systems to a target well below the 4.0 pCi/L action level, and recommends retesting every two years. When a fan eventually wears out, radon fan replacement restores the system.

Glen Carbon neighborhoods and nearby communities

Air Sense Environmental works across Glen Carbon, IL, including the original village along Main Street, the Route 159 corridor and the subdivisions toward Edwardsville, in ZIP code 62034. Nearby communities with their own service pages:

• Radon mitigation and testing in Edwardsville, IL
• Radon mitigation and testing in Maryville, IL
• Radon mitigation and testing in Collinsville, IL
• Radon mitigation and testing in Troy, IL
• All Air Sense Environmental service areas