St. Louis Metro · Missouri & Illinois

Radon Mitigation Case Studies

Real Air Sense Environmental projects: the problem each home had, how the system was designed, and what the homeowner saw afterward.

Each case study names its source. Readings come from the homeowner’s own monitor or test unless stated otherwise, and we recommend a follow-up radon test after every mitigation.

Projects

Case Studies

Radon vent pipe with manometer on a garage wall in Chesterfield, Missouri

Chesterfield, MO · September 2026

Active Sump Pit and a High Water Table

One suction point, a sealed sump with a viewing window, and garage-and-attic routing. The homeowner’s monitor went from 4–5+ pCi/L to a 72-hour average below 1.0.

Reviews and projects
Radon mitigation in Greater St. Louis
Post-mitigation radon testing

Your Home

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Radon Mitigation Case Studies

Case Studies

Active Sump Pit and a High Water Table

See More of Our Work

Have a radon result to talk through?