Basement Radon in Marietta
Sub-Slab Depressurization for Cobb County Basements
Many older Marietta homes have full basements. Professional mitigation draws radon from beneath your basement floor before it enters your living space.
Why Basements Have Higher Radon
Basements are particularly vulnerable to radon accumulation due to their construction and location.
Direct Soil Contact
Basement floors and walls are in direct contact with soil, providing multiple entry points for radon gas.
Negative Pressure
Basements often have lower air pressure than surrounding soil, drawing radon in through cracks and gaps.
Limited Ventilation
Finished basements may have reduced air exchange, allowing radon to accumulate to higher levels.
Foundation Cracks
Older Cobb County homes often have settlement cracks that provide easy pathways for radon entry.
Basement Mitigation Process
Assessment
We evaluate your basement construction, identify entry points, and determine optimal suction point locations.
Core Drilling
A 4-5 inch hole is drilled through the basement floor slab to access the gravel bed beneath.
Pit Creation
Material is removed beneath the slab to create a suction pit for effective radon collection.
System Installation
PVC piping connects the suction point to a radon fan that vents above the roofline.
Marietta Basement Homes
Many homes in established Marietta neighborhoods like East Cobb and areas near Kennesaw Mountain have full or partial basements. These homes, often built in the 1970s-1990s, may have settling cracks and other radon entry points that develop over time.
Basement Radon FAQs
Why do basements have higher radon levels?
Basements are surrounded by soil on multiple sides, providing more surface area for radon entry. The stack effect in homes also draws soil gases upward into basement spaces.
Should I test my finished basement for radon?
Yes. Finished basements used as living space should always be tested. If you spend significant time in your basement, radon exposure matters just as much as in upper floors.
How does basement radon mitigation work in Marietta?
Most Marietta basements use sub-slab depressurization. We drill through the concrete floor, create a suction point, and install a fan system that draws radon from beneath the slab and vents it safely above your roof.
What about radon in my sump pit?
Sump pits are common radon entry points. We seal sump lids with airtight covers and may use the sump pit as a suction point or install a separate suction point nearby.
How much does basement radon mitigation cost in Marietta?
Basement systems in Marietta typically cost $1,000-$2,000 depending on basement size, number of suction points needed, and pipe routing complexity.
Will the system affect my finished basement?
We design systems to minimize visual impact. Pipes can often run through closets, utility areas, or along walls. Exterior routing is also an option.
Protect Your Basement
Contact us to discuss radon testing and mitigation for your Marietta basement.
Radon Safety Resources
Expert insights and guides to keep you informed
An Orange Cat Went Viral for Detecting Radon Gas - Here's What Every Homeowner Should Know
A Reddit post with 36,000+ upvotes tells the story of a senior orange cat whose bizarre behavior turned out to be a life-saving warning about dangerous radon gas levels. The internet loved it, but the science behind it is dead serious.
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Why Radon Testing Is Essential: Complete Guide for Homeowners & Buyers
Radon causes more deaths than drunk driving, house fires, and carbon monoxide combined. Learn why radon testing should be part of every home purchase and ownership plan, understand the health risks, and discover how to protect your family.
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How Radon Mitigation Systems Work: Complete Technical Guide
Learn exactly how radon mitigation systems achieve 95-99% reduction rates. Understand sub-slab depressurization, system components, installation process, costs, and what to expect from professional radon mitigation.
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