If you’ve tested your home for radon once, great job—you’ve already taken an important step toward protecting your family’s health.
But here’s the thing: radon levels aren’t static. They can change over time, even in homes that initially tested low.
So if you’re wondering “How often should I test for radon?”—you’re asking the right question.
Let’s walk through the answer.
Why Radon Testing Isn’t a One-Time Event
Radon is a naturally occurring radioactive gas that comes from the soil beneath your home. It can enter through:
- Cracks in the foundation
- Gaps around pipes and drains
- Crawl spaces and sump pumps
Radon levels fluctuate based on:
- Changes in your home’s ventilation or HVAC system
- Foundation settling or new cracks forming
- Renovations (new windows, insulation, or roofing can alter airflow)
- Shifts in the ground due to weather, earthquakes, or construction nearby
That’s why the EPA, CDC, and experts like EnviroPro 360 recommend regular retesting—even if your initial test came back safe.
General Guidelines: How Often Should You Retest?
Here’s a simple guideline to follow:
| Situation | Recommended Testing Frequency |
|---|---|
| Never tested before | Test ASAP |
| Last test was over 2 years ago | Retest now |
| After home renovations | Test immediately post-renovation |
| After installing a mitigation system | Retest within 30 days, then every 2 years |
| Before buying or selling a home | Test during the transaction process |
In general:
Test your home for radon every 2 years.
Test sooner if anything changes with the structure of your home or HVAC system.
Why Retesting Matters in the Southeast
Homes in Georgia and the Carolinas are especially at risk because of our region’s soil composition. Even if your home tested low once, geological shifts or weather patterns can cause levels to rise unexpectedly.
Many homeowners are surprised to learn that a home can go from a “safe” radon level to a dangerous one in just a few years.
Retesting regularly gives you peace of mind—and early warning if radon levels increase.
What If You Already Have a Mitigation System?
If your home has a radon mitigation system installed, you should still test:
- 30 days after installation to ensure the system is working
- Every 2 years to confirm ongoing effectiveness
Mitigation systems require occasional maintenance. Testing verifies that everything is functioning as it should.
DIY or Professional Testing: What’s Best?
You can use a DIY radon test kit, but for the most accurate results—especially during real estate transactions or after major renovations—professional testing is strongly recommended.
Certified professionals like EnviroPro 360 use continuous radon monitors and advanced equipment to provide more precise, dependable readings than most home kits.
Protect Your Family With Regular Radon Testing
Testing your home for radon is one of the simplest and most important ways to protect your family’s health.
Radon is a leading cause of lung cancer in non-smokers—and the good news is, it’s preventable with regular testing and mitigation.
So if it’s been more than 2 years since your last radon test (or you’ve never tested at all), now’s the perfect time to act.
Ready to Schedule Your Next Radon Test?
At EnviroPro 360, we make radon testing fast, affordable, and stress-free.
We proudly serve homeowners across Augusta, Georgia and the Carolinas—helping families breathe easier and live safer.
Contact us today to schedule your professional radon test.
Peace of mind is just a test away.
EnviroPro 360 – Safe Environment Begins with Us.

