Radon Testing & Mitigation in Maryland Heights, MO

Maryland Heights, MO 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 St. Louis 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 Maryland Heights, MO?

Yes. St. Louis County is in EPA Radon Zone 2, where the predicted average indoor radon level is 2 to 4 pCi/L, and individual Maryland Heights homes routinely test well above the 4.0 pCi/L action level. Missouri’s Department of Health and Senior Services reports that roughly one in three homes tested through its statewide program between 2003 and 2023 came back at or above 4.0 pCi/L. Maryland Heights stretches from the upland neighborhoods off Dorsett Road down to the Missouri River bottoms around Creve Coeur Lake, so soil and foundation types change from one side of the city to the other.

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

Radon testing in Maryland Heights, MO

For radon testing in Maryland Heights, 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. Radon testing in Maryland Heights covers how the test works, and the radon testing cost guide holds current pricing.

Radon mitigation in Maryland Heights, MO

A Maryland Heights 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 Maryland Heights, MO

For indoor air quality in Maryland Heights, 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 Maryland Heights, MO

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

The Maryland Heights homes the team sees most often:

• 1960s to 1980s ranch and split-level homes off Dorsett Road and McKelvey Road
• Newer subdivisions on poured basements on the west side
• Homes near the Creve Coeur Lake bottoms with crawl spaces or slab foundations
• Condominiums and villas where the ground-floor unit is the one that needs testing

What should Maryland 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.

Maryland Heights neighborhoods and nearby communities

Air Sense Environmental works across Maryland Heights, MO, including Creve Coeur Lake, the Dorsett Road corridor and the neighborhoods off McKelvey Road, in ZIP codes 63043 and 63146. Nearby communities with their own service pages:

• Radon testing and mitigation in Chesterfield, MO
• Radon testing and mitigation in Creve Coeur, MO
• Radon testing and mitigation in St. Charles, MO
• Radon testing and mitigation in Florissant, MO
• All Air Sense Environmental service areas

From Our Work