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The Complete Guide to Radon Testing in Utah

Everything Utah homeowners need to know about testing their home for radon — why it matters, how it works, and what your results mean.

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Why Every Utah Home Should Be Tested

Radon is a naturally occurring radioactive gas that seeps into homes through cracks in foundations, basement floors, and crawlspaces. You can't see it, smell it, or taste it — but it's the #1 cause of lung cancer in non-smokers.

In Utah, a significant portion of homes test above the WHO mitigation threshold of 2.7 pCi/L — far more than the national average. There is no safe level of radon, and even lower levels carry measurable risk.

How Radon Testing Works

Testing your home is simple and free through Utah Radon:

  1. Request your free kit — We mail you a charcoal test kit with prepaid return shipping
  2. Place the kit — Set it in your lowest living level for 48 hours
  3. Mail it back — Use the prepaid label to return it to our independent lab
  4. Get results — We'll send you your radon level and recommendations

Understanding Your Results

There is no safe level of radon — any exposure carries some risk. Use these thresholds as a guide:

  • Below 2.0 pCi/L — Low risk. Retest every 2–5 years.
  • 2.0 – 2.6 pCi/L — Moderate risk. The EPA recommends considering mitigation at 2.0 pCi/L.
  • 2.7 pCi/L and above — WHO recommends mitigation. Utah Radon strongly recommends taking action.
  • 4.0 pCi/L and above — High risk. Mitigation is urgent.

Next Steps

If your levels are elevated, radon mitigation systems are effective and affordable. A certified radon mitigation professional can reduce your home's radon levels by up to 99%.

Published by Utah Radon — a 501(c)(4) nonprofit providing free radon test kits to Utah homeowners. Data sourced from Alpha Energy Laboratories based on 115,601+ tests analyzed. Learn more at about us.

Protect your family today

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