Serving Polk County
Radon Specialists in Johnston.
Iowa-certified testing and guaranteed mitigation serving Johnston homeowners, buyers, and sellers.
Schedule Service in JohnstonThe Radon Context in Johnston
Johnston sits in EPA Zone 1, the highest risk classification for indoor radon gas in the United States. In fact, 71.6% of homes in Iowa test above the EPA's action level.
Because of our unique glacial soil, the average indoor radon level in Polk County is well above both the national average (1.3 pCi/L) and the EPA action limit (4.0 pCi/L). The only way to know if your specific home in Johnston is safe is to perform a professional, certified test.
Polk County Data
EPA Action Level
4.0 pCi/L
County Average
7.3 pCi/L

Radon Testing in Johnston
We provide Iowa-certified Continuous Radon Monitor (CRM) testing for homeowners and real estate transactions throughout the city.
Radon Mitigation in Johnston
If your Johnston home tests high, our certified mitigation team can fix it efficiently. We specialize in Active Soil Depressurization (ASD) systems designed to blend in with your home's architecture.
- Premium Festa AMG fans (7-year warranty)
- Clean, aesthetic pipe routing
- Installation completed in one day
- Post-mitigation clearance test included

The 2.7 Guarantee
Every mitigation system we install in Johnston is guaranteed to reduce your home's radon below 2.7 pCi/L, or we return at no charge until it does.
Ready to protect your Johnston home?
All Midwest Radon serves Johnston and nearby communities including Grimes, Granger, Polk City, and Saylorville. Serving all of Polk County.