
Radon Testing in Marietta, GA
Cobb County Professional Testing Services
Marietta sits on granite bedrock that produces elevated radon. Professional testing reveals your home's actual radon levels.
Why Test Your Marietta Home for Radon?
Cobb County Radon Risk
Marietta and Cobb County are in EPA Zone 1, indicating high radon potential. The Piedmont region's granite geology produces uranium that decays into radon gas. Many Marietta homes test above the 4.0 pCi/L EPA action level.
Testing Methods We Use
Continuous Radon Monitors
Electronic CRM devices provide hourly readings over 48+ hours, detecting any tampering or unusual conditions.
Charcoal Canisters
Passive testing option that absorbs radon over the testing period. Lab-analyzed for accurate results.
Long-Term Testing
Alpha track detectors measure radon over 90+ days for annual average readings.
Our Marietta Testing Process
Schedule
Contact us to schedule testing at your Marietta property. We'll confirm timing and closed-home requirements.
Setup
Our technician places monitors in the lowest livable level, typically the basement or main floor.
Monitor
Testing runs for a minimum of 48 hours under closed-home conditions.
Results
We analyze the data and provide a detailed report with radon levels and recommendations.
Marietta Neighborhoods We Serve
Professional radon testing throughout Cobb County
Marietta Radon Testing FAQs
Why is radon testing important in Marietta?
Marietta is in EPA Radon Zone 1, the highest risk category. Cobb County's granite bedrock produces elevated radon levels, with many homes testing above the 4.0 pCi/L action level. Testing is the only way to know your home's radon levels.
How much does radon testing cost in Marietta?
Professional radon testing in Marietta typically costs $125-200 for short-term testing with continuous monitors. Contact us for current Cobb County pricing.
How long does radon testing take?
Short-term tests require a minimum of 48 hours under closed-home conditions. For the most accurate results in Marietta's variable climate, 4-7 day tests are recommended.
Do I need to leave my home during testing?
No. You can stay in your Marietta home during testing. Maintain closed-home conditions: keep windows and exterior doors closed except for normal entry/exit.
When is the best time to test for radon in Marietta?
Radon can be tested year-round, but winter months often show higher levels due to closed homes and temperature differentials. Test after buying a home, after renovations, or every 2 years.
What radon levels are typical in Marietta homes?
Marietta homes average around 4.5 pCi/L, above the EPA action level. However, individual homes vary significantly based on foundation type, soil conditions, and home construction.
Test Your Marietta Home
Contact us to schedule professional radon testing for your Cobb County property.
Related Topics
Mitigation Systems
System options if testing shows elevated levels
Mitigation Cost
Typical pricing for Cobb County installations
Basement Radon
Testing and mitigation for homes with basements
Real Estate Testing
Testing for Marietta home buyers and sellers
New Construction
Testing new homes in Cobb County developments
Radon Safety Resources
Expert insights and guides to keep you informed

Radon Still High After Mitigation? Here Is Why, and What to Do
Your radon system is running but levels are still at or above 4.0 pCi/L. Here are the common reasons a mitigation system underperforms, what you can check yourself, and when to call a professional for diagnosis and a fix.
Read more about Radon Still High After Mitigation? Here Is Why, and What to Do →
Radon in Slab-on-Grade Homes: Why No Basement Does Not Mean No Radon
Slab-on-grade homes have no basement, which leads many metro Atlanta homeowners to assume they are safe from radon. They are not. Radon enters through slab cracks, control joints, and plumbing and utility penetrations directly into the living space. How radon gets into a slab home, why these homes still test high, how testing works, and how sub-slab depressurization mitigates a slab home.
Read more about Radon in Slab-on-Grade Homes: Why No Basement Does Not Mean No Radon →
Do Consumer Radon Monitors Work? Electronic Monitors vs Lab Test Kits
Consumer electronic radon monitors are great for ongoing awareness and trends, while lab-analyzed charcoal and alpha-track kits and professional tests are the standard for decisions like real estate. How accuracy, cost, and speed compare, and which to use when.
Read more about Do Consumer Radon Monitors Work? Electronic Monitors vs Lab Test Kits →