Radon Testing & Mitigation in Godfrey, IL

Air Sense Environmental provides radon testing, radon mitigation, indoor air quality testing and crawl space encapsulation in Godfrey, 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 Godfrey, 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 Godfrey 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. Godfrey spreads across the bluffs north of Alton with large lots and a semi-rural feel, a mix of mid-century ranches, newer custom homes and properties on private wells.

Radon varies house by house rather than neighborhood by neighborhood. Two homes on the same Godfrey 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 Godfrey, IL

Radon testing in Godfrey 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. The St. Louis radon testing page covers how the test works, and the radon testing cost guide holds current pricing.

Radon mitigation in Godfrey, IL

Radon mitigation in Godfrey 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 the St. Louis radon mitigation services page for the process, documented results and warranty.

Indoor air quality testing in Godfrey, IL

Indoor air quality testing in Godfrey 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 the St. Louis indoor air quality testing page.

Crawl space encapsulation in Godfrey, IL

Crawl space encapsulation in Godfrey 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 the St. Louis crawl space encapsulation page.

Which Godfrey homes does Air Sense Environmental work on?

The Godfrey homes the team sees most often:

• Mid-century ranch homes with basements
• Custom homes on large lots with walkout lower levels
• Homes on private wells
• Homes near the river bluffs on fractured limestone

What should Godfrey 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.

Godfrey neighborhoods and nearby communities

Air Sense Environmental works across Godfrey, IL, including the Godfrey Road corridor, the neighborhoods near Lewis and Clark Community College and the bluffs along the Great River Road, in ZIP code 62035. Nearby communities with their own service pages:

• Radon testing and mitigation in Alton, IL
• Radon testing and mitigation in Bethalto, IL
• Radon testing and mitigation in Elsah, IL
• Radon testing and mitigation in Brighton, IL
• All Air Sense Environmental service areas

From Our Work