Homeowner radon guide
Radon testing vs. mitigation
Testing measures radon. Mitigation reduces radon using a designed system.
Start with a valid test
Choose an appropriate test method and follow placement and closed-house instructions.
Mitigation follows evidence
If action is appropriate, a mitigator evaluates the home and proposes a system. Post-installation testing confirms performance.
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.