How Often to Test for Radon

How Often to Test for Radon? Great question!

Because One Test Isn’t Always Enough

You tested for radon once—great! But here’s the truth most homeowners don’t know: radon levels can change over time. Soil shifts, weather patterns, renovations, and even HVAC upgrades can all affect the air you breathe.

So how often should you re-test for radon in Georgia?

The EPA’s Radon Retesting Guidelines

The EPA recommends retesting your home every 2 years, or sooner if:

• You’ve recently renovated your basement or added a room
• You’ve made changes to your HVAC system or ventilation
• You’ve moved into a new home with no prior test on record
• A previous test was done with a DIY kit, not professional equipment
• You’ve had mitigation work done and want to ensure it’s working

See How Our Radon Testing Works

Why Radon Levels Change Over Time

Radon comes from the ground—and the conditions underground are never static. Your radon risk can fluctuate due to:

• Seasonal changes (levels are often higher in winter)
• Soil movement or settling
• Cracks or shifts in your foundation
• Increased airtightness from new windows, doors, or insulation
• Weather events like heavy rain or drought

Even two identical homes next to each other can have completely different radon levels.

Real Georgia Homeowner Story

“We tested five years ago and it was low. But after finishing our basement and adding insulation, our radon level jumped to 6.8. I’m so glad we re-tested—it was a wake-up call.”
— Brian W., Alpharetta GA

When’s the Best Time of Year to Test?

Winter months are typically best, since windows are closed and radon levels tend to rise. That said, any time is better than no time—especially before selling a home, finishing a basement, or moving in.

Ongoing Monitoring vs. Periodic Testing

If you’re especially radon-conscious or live in a high-risk area (like North Georgia), you may want to consider:

• Annual testing as part of a home maintenance plan
• Post-mitigation follow-up tests to ensure continued performance
• Smart radon monitors for real-time monitoring (great for health-focused families)

Living in Georgia? Here’s the Plan.

• Never tested? Do it now.
• Tested over 2 years ago? Time for a recheck.
• Finished a basement, changed HVAC, or moved? Don’t wait—test again.

Schedule Your Test Now
Or call: (229) NO-RADON

Peace of Mind Starts with a Repeat

Testing once is good. Testing regularly is smart.
Protect your health. Protect your investment.

Know your number—again.