How Does Radon Testing Work? Step-by-Step | DezAir
Published on: 02/11/2026
From scheduling to your final report — here's exactly what happens during a professional radon test, start to finish.
Radon TestingProfessional Radon Testing
From scheduling to your final report — here's exactly what happens during a professional radon test, start to finish.
Neither test is always legally required, but both are common and valuable parts of due diligence before closing on a home.
The EPA recommends action at 4 pCi/L or higher. Levels between 2–4 pCi/L are considered elevated. Here's what those numbers actually mean.
You can't see, smell, or taste radon. Testing is the only way to know for certain whether it's present in your home.