Homeowner radon guide
How radon mitigation works
Most systems reduce the pressure beneath a foundation and safely exhaust soil gas outdoors.
The pressure principle
A fan and sealed piping help draw soil gas from beneath the home before it enters living spaces.
Verification matters
The system should include an operating indicator, labeling, and post-installation testing according to the applicable standard.
What to do next
Use the cost estimator for planning or search for professionals whose recorded service area matches your ZIP code.
Content reviewed 2026-08-20. Educational information only; testing and a property-specific assessment are still required.