Radon Testing & Mitigation in Bethalto, IL

Bethalto, 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 Madison 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 Bethalto, IL?

Yes. Madison County is in EPA Radon Zone 2, where the predicted average indoor radon level is 2 to 4 pCi/L, and individual Bethalto 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. Bethalto is a Madison County village next to St. Louis Regional Airport, with mid-century ranch homes on basements and crawl spaces and newer subdivisions on its edges.

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

Radon testing in Bethalto, IL

For radon testing in Bethalto, 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 Bethalto, IL

A Bethalto 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 the St. Louis radon mitigation services page for the process, documented results and warranty.

Indoor air quality testing in Bethalto, IL

For indoor air quality in Bethalto, 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 Bethalto, IL

A sealed, conditioned crawl space keeps ground moisture and soil gas from rising into a Bethalto 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 Bethalto homes does Air Sense Environmental work on?

The Bethalto homes the team sees most often:

• 1950s to 1970s ranch homes with basements or crawl spaces
• Newer subdivision homes on poured basements
• Homes with crawl spaces over exposed soil
• Homes being sold, where Illinois law requires radon disclosure to the buyer

What should Bethalto 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.

Bethalto neighborhoods and nearby communities

Air Sense Environmental works across Bethalto, IL, including downtown Bethalto, the neighborhoods near St. Louis Regional Airport and the Route 140 corridor, in ZIP code 62010. Nearby communities with their own service pages:

• Radon testing and mitigation in Alton, IL
• Radon testing and mitigation in Godfrey, IL
• Radon testing and mitigation in Edwardsville, IL
• Radon testing and mitigation in Glen Carbon, IL
• All Air Sense Environmental service areas

From Our Work