How to Tell If Your Radon Mitigation System Is Actually Working
Mankato – September 20, 2026 -- Homeowners who install a radon mitigation system can expect measurable improvement within 24 to 48 hours, but confirming long-term protection requires follow-up testing, according to a HelloNation article featuring Radon Testing Expert Mitch Kelley of Basement Solutions in Mankato, Minnesota.
A fan and gauge system vents radon gas continuously from beneath the home.
Once installed, a certified radon professional's system uses a fan to pull radon from beneath the foundation through pipes and release it outdoors. A small gauge called a manometer is attached to the system to show whether it's operating correctly; a changed reading or no pressure difference can signal a problem.