Radon Testing & Mitigation in Edwardsville, IL

Air Sense Environmental provides radon testing, radon mitigation, indoor air quality testing and crawl space encapsulation in Edwardsville, IL. The company is IEMA-licensed (#RNM20232346) and NRPP-certified, works across Madison County from its Edwardsville, Illinois headquarters, and measures every radon job against the EPA action level of 4.0 pCi/L.

Is radon a problem in Edwardsville, 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 Edwardsville 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. Edwardsville is home to Air Sense Environmental’s headquarters, and its housing mixes historic districts such as Leclaire and St. Louis Street, with stone foundations and crawl spaces, and newer subdivisions on poured basements.

Radon varies house by house rather than neighborhood by neighborhood. Two homes on the same Edwardsville street, built the same year by the same builder, can test at 1 pCi/L and 12 pCi/L because of what sits under each lot and how each foundation was sealed.

Radon testing in Edwardsville, IL

Radon testing in Edwardsville uses a calibrated continuous radon monitor for a 48-hour closed-house test, with hourly readings and tamper detection that hold up in a real estate transaction. Radon testing in Edwardsville covers how the test works, and the radon testing cost guide holds current pricing.

Radon mitigation in Edwardsville, IL

Radon mitigation in Edwardsville means a sub-slab depressurization system designed around the specific foundation, with the fan outside the living space and a post-mitigation test to prove the result. See radon mitigation in Edwardsville for the process, documented results and warranty.

Indoor air quality testing in Edwardsville, IL

Indoor air quality testing in Edwardsville measures particulates, VOCs, carbon dioxide, carbon monoxide, temperature and humidity over at least 48 hours, with radon as an optional add-on, and ends in a written report. Details are on indoor air quality in Edwardsville.

Crawl space encapsulation in Edwardsville, IL

Crawl space encapsulation in Edwardsville seals the floor and walls with a reinforced vapor barrier, closes the vents and controls humidity with a dehumidifier, which also cuts off a common radon pathway. Read more on crawl space encapsulation in Edwardsville.

Which Edwardsville homes does Air Sense Environmental work on?

The Edwardsville homes the team sees most often:

• Historic homes in the Leclaire and St. Louis Street districts with stone foundations, cellars or crawl spaces
• Mid-century ranches and split-levels between downtown and the SIUE campus
• Newer subdivisions on the north and west sides with poured basements
• Rental homes and duplexes near SIUE, which landlords test between tenants

What should Edwardsville 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.

Edwardsville neighborhoods and nearby communities

Air Sense Environmental works across Edwardsville, IL, including downtown Edwardsville, the Leclaire historic district and the neighborhoods around Southern Illinois University Edwardsville, in ZIP code 62025. Nearby communities with their own service pages:

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

From Our Work