Radon Testing & Mitigation in Waterloo, IL

Waterloo, IL homeowners call Air Sense Environmental for four things: radon testing, radon mitigation, indoor air quality testing and crawl space encapsulation. The NRPP-certified, IEMA-licensed (#RNM20232346) team serves Monroe County from Edwardsville, Illinois, and designs every radon system to bring the home below the EPA action level of 4.0 pCi/L.

Is radon a problem in Waterloo, IL?

Yes. Radon levels in Monroe County vary widely from house to house, and individual Waterloo homes routinely test above the EPA action level of 4.0 pCi/L. 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. Waterloo is the seat of Monroe County, in the middle of a karst plain of sinkholes, caves and fractured limestone that gives soil gas easy routes to the surface.

Because radon depends on the ground under a single lot and the openings in a single foundation, Waterloo results change from address to address. Testing the specific house is the only way to know where it stands.

Radon testing in Waterloo, IL

For radon testing in Waterloo, Air Sense Environmental places a continuous monitor on the lowest livable level for 48 hours and delivers a documented report against the 4.0 pCi/L action level. The St. Louis radon testing page covers how the test works, and the radon testing cost guide holds current pricing.

Radon mitigation in Waterloo, IL

A Waterloo radon mitigation system pulls soil gas from beneath the slab or crawl space membrane and vents it above the roofline; every install ends with a verification test. See radon mitigation in Waterloo for the process, documented results and warranty.

Indoor air quality testing in Waterloo, IL

For indoor air quality in Waterloo, a continuous monitor tracks particulates, VOCs, carbon dioxide, carbon monoxide and humidity, and the report shows which readings sit outside healthy ranges. Details are on the St. Louis indoor air quality testing page.

Crawl space encapsulation in Waterloo, IL

A sealed, conditioned crawl space keeps ground moisture and soil gas from rising into a Waterloo home; Air Sense Environmental installs the barrier, seals the vents and sizes the dehumidifier. Read more on the St. Louis crawl space encapsulation page.

Which Waterloo homes does Air Sense Environmental work on?

The Waterloo homes the team sees most often:

• Historic homes near the courthouse square with stone foundations
• 1980s to 2010s subdivision homes on poured basements
• Homes near mapped sinkholes
• Rural homes and farmhouses on private wells

What should Waterloo homeowners expect?

1. Test first. A 48-hour continuous monitor test gives the number everything else depends on.
2. Read the report together. You get the hourly data and a plain explanation of what it means for the house.
3. Design the fix. If the reading is at or above 4.0 pCi/L, the system is designed around your foundation during a free in-home estimate.
4. Install and verify. Most systems go in within a single day, and a post-mitigation test confirms the result.

Waterloo neighborhoods and nearby communities

Air Sense Environmental works across Waterloo, IL, including the courthouse square, the Route 3 corridor and the subdivisions on the north side of town, in ZIP code 62298. Nearby communities with their own service pages:

• Radon testing and mitigation in Columbia, IL
• Radon testing and mitigation in Millstadt, IL
• Radon testing and mitigation in Belleville, IL
• Radon testing and mitigation in Oakville, MO
• All Air Sense Environmental service areas

From Our Work