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Does Radon Mitigation Work?
Yes. EPA says radon reduction systems work, and some can reduce radon levels in a home by up to 99%. Even very high levels can be brought down to acceptable levels. Maine CDC says any home can be fixed. Always retest after installation to confirm the result, and retest about every two years.
Most soil suction systems include a monitor that shows whether the system is running. A Massachusetts DPH checklist suggests getting a contract that guarantees levels stay below 4.0 pCi/L, ideally 2.0. University of Georgia Extension says systems typically last 10 to 15 years.
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FAQ
How much can mitigation reduce radon?
EPA says some systems can cut radon levels by up to 99%.
How do I know it’s working?
Retest after installation, check the system monitor, and retest about every two years (EPA).