SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/home-a-radon-retest

Once your home has a radon system, how often should you retest?

Every two years.

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  1. Every two years ✔
  2. Every 20 years
  3. Never, once is enough

Why: EPA says it is a good idea to retest every two years to be sure radon levels remain low. Most soil suction systems also have a monitor showing whether they work properly.

Huh, didn't know that: EPA and the Surgeon General recommend testing all homes below the third floor for radon.

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References

Answer: Every two years. EPA says it is a good idea to retest every two years to be sure radon levels remain low. Most soil suction systems also have a monitor showing whether they work properly.

  1. EPA: A Citizen's Guide to Radon (2016) www.epa.gov/sites/default/files/2016-12/documents/2016_a_citizens_guide_to_radon.pdf
    it's a good idea to retest your home every two years to be sure radon levels remain low
    Checked 2026-10-10.

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