Homeowner radon guide
What does 10 pCi/L mean?
A higher reading does not prove that a larger fan or extra suction point is required.
Do not infer the system from the number
Diagnostic measurements and foundation conditions guide system design.
Act deliberately
Confirm testing context, speak with qualified professionals, and plan post-installation testing.
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.