Radon Testing & Mitigation in Fairview Heights, IL

In Fairview Heights, IL, Air Sense Environmental tests homes for radon, installs radon mitigation systems, tests indoor air quality and encapsulates crawl spaces. Every radon job in St. Clair County is measured against the EPA action level of 4.0 pCi/L, and the team is NRPP-certified and IEMA-licensed (#RNM20232346).

Is radon a problem in Fairview Heights, IL?

Yes. St. Clair County is in EPA Radon Zone 2, where the predicted average indoor radon level is 2 to 4 pCi/L, and individual Fairview Heights 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. Fairview Heights grew from the 1960s to the 1980s around the Interstate 64 corridor, so most of its homes are ranches, split-levels and two-stories on poured or block basements.

A Fairview Heights neighbor’s reading is a signal, not an answer. The soil under one lot, the cracks in one slab and the way one sump pit was sealed decide the number, which is why two similar homes a few doors apart can land on opposite sides of the action level.

Radon testing in Fairview Heights, IL

A Fairview Heights radon test runs 48 hours under closed-house conditions on a calibrated continuous monitor, and the report shows the hourly data as well as the average. The St. Louis radon testing page covers how the test works, and the radon testing cost guide holds current pricing.

Radon mitigation in Fairview Heights, IL

When a Fairview Heights home tests at or above 4.0 pCi/L, the same team designs and installs the radon mitigation system, usually in a single day, and retests to confirm the home is below the action level. See the St. Louis radon mitigation services page for the process, documented results and warranty.

Indoor air quality testing in Fairview Heights, IL

An indoor air quality assessment for a Fairview Heights home logs particulate matter, chemical vapors, CO2, CO and humidity at one-minute intervals for 48 hours or more, so the fix is based on data. Details are on the St. Louis indoor air quality testing page.

Crawl space encapsulation in Fairview Heights, IL

For Fairview Heights homes with a crawl space, encapsulation lays a sealed vapor barrier over the soil and walls and adds humidity control, keeping damp air and soil gas out of the rooms above. Read more on the St. Louis crawl space encapsulation page.

Which Fairview Heights homes does Air Sense Environmental work on?

The Fairview Heights homes the team sees most often:

• 1960s to 1980s ranch and split-level homes
• Two-story homes with finished basements
• Homes near Scott Air Force Base bought and sold on military timelines
• Villas and townhomes on slab foundations

What should Fairview Heights 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.

Fairview Heights neighborhoods and nearby communities

Air Sense Environmental works across Fairview Heights, IL, including the St. Clair Square area, the Lincoln Trail corridor and the neighborhoods north of Interstate 64, in ZIP code 62208. Nearby communities with their own service pages:

• Radon testing and mitigation in O’Fallon, IL
• Radon testing and mitigation in Swansea, IL
• Radon testing and mitigation in Belleville, IL
• Radon testing and mitigation in Collinsville, IL
• All Air Sense Environmental service areas

From Our Work