
Crawl Space, Sump & Sub-Slab Depressurization Systems in Atlanta
Expert Radon Mitigation Systems for All Foundation Types
Protect your Atlanta home with professionally installed radon mitigation systems from trusted radon companies and professional contractors designed for your specific foundation type. Post-installation testing is available to measure results.

Depressurization System Types
Professional radon mitigation systems for every foundation type in Metro Atlanta
Sub-Slab Depressurization (SSD)
Most common system for slab foundations. Creates negative pressure beneath the slab to prevent radon entry.
- Single or multi-point suction
- Sealed foundation cracks
- Below-slab vacuum
- Minimal disruption
Crawl Space Depressurization
Specialized system for homes with crawl spaces. Uses vapor barriers and suction points to remove radon.
- Heavy-duty vapor barrier
- Multiple suction points
- Sealed crawl space
- Improved air quality
Sump Pump Depressurization
Utilizes existing sump pump pit as suction point. Cost-effective solution for homes with sumps.
- Sealed sump lid
- Integrated system
- Backup protection
- Dual functionality
How Depressurization Systems Work
The science behind effective radon reduction in Atlanta homes
The Problem
Radon gas accumulates beneath your foundation due to Atlanta's granite-rich soil. Natural pressure differences and foundation openings allow radon to seep into your home, especially through:
- Foundation cracks
- Construction joints
- Gaps around pipes
- Crawl space floors
- Sump pump pits
The Solution
Depressurization systems create negative pressure beneath your foundation, reversing the pressure difference. Radon is drawn away from your home through:
- Strategic suction points
- Sealed foundation openings
- Continuous fan operation
- Venting above roof line
- System monitoring
System Components
Atlanta Foundation Types & Solutions
Expert radon mitigation for every foundation type in Metro Atlanta
Slab-on-Grade
Common in newer Metro Atlanta homesRecommended Solution:
Sub-slab depressurization (SSD) is most effective. One or more suction points drilled through slab.
Atlanta Consideration:
Atlanta's clay soil requires careful sealing of all foundation cracks.
Crawl Space
Very common in older Atlanta neighborhoodsRecommended Solution:
Crawl space depressurization with heavy vapor barrier installation. Multiple suction points recommended.
Atlanta Consideration:
Georgia's humidity makes vapor barriers essential. Prevents moisture and radon.
Basement
Common in North Metro Atlanta areasRecommended Solution:
Sub-slab depressurization or drain tile depressurization depending on basement construction.
Atlanta Consideration:
Buckhead, Sandy Springs, and Alpharetta homes often have partial or full basements.
Combination Foundations
Split-level homes in Metro AtlantaRecommended Solution:
Custom systems combining multiple techniques for different foundation sections.
Atlanta Consideration:
Requires expert design to ensure complete radon reduction throughout home.
Depressurization System FAQs
Common questions about radon mitigation systems in Atlanta
What is sub-slab depressurization and how does it work?
Sub-slab depressurization (SSD) is the most effective radon mitigation method for Atlanta homes with slab foundations. A fan creates negative pressure beneath your foundation, preventing radon from entering your home. Instead, radon is drawn through PVC pipes and vented safely above your roof. It's highly effective, reducing radon levels by 99% in most Metro Atlanta homes.
Which system is best for Atlanta homes with crawl spaces?
Crawl space depressurization is ideal for homes with crawl space foundations, common in older Atlanta neighborhoods. This system installs a heavy-duty vapor barrier across the crawl space floor, sealed at edges and penetrations. Suction points beneath the barrier draw radon out before it can enter your home. This also helps with moisture control in Georgia's humid climate.
Can you use my existing sump pump for radon mitigation?
Yes! Sump pump depressurization is a cost-effective option for Atlanta homes with existing sump pumps. We install a specialized sealed lid on your sump pit with integrated piping to draw radon from beneath your foundation. This method works well and doesn't interfere with your sump pump's drainage function.
How many suction points does my Atlanta home need?
Most Atlanta homes need 1-2 suction points depending on size, radon levels, and foundation type. Larger homes (over 3,000 sq ft) or homes with very high radon levels may require additional points. Our certified professionals conduct diagnostic testing to determine the optimal number and placement of suction points for your specific home.
Will the system damage my foundation?
No. Installation involves minimal drilling (typically 3-4 inch holes) and causes no structural damage. We carefully seal all holes and cracks during installation. For crawl space systems, vapor barriers are installed without foundation alteration. Our technicians follow strict protocols to protect your Atlanta home's foundation.
How long does installation take in Metro Atlanta?
Most sub-slab and crawl space depressurization systems are installed in one day for typical Atlanta homes. Installation time varies by home size, foundation complexity, and system design. Crawl space vapor barrier installations may take 1-2 days. We provide accurate timelines during your free consultation.
What about homes with multiple foundation types?
Many Atlanta homes, especially split-levels, have combination foundations. We design custom radon mitigation systems that address each foundation type. This might combine sub-slab depressurization for slab areas with crawl space systems for other sections. Our expertise ensures complete radon reduction throughout your entire home.
Certified Professionals
Experienced contractors
Comprehensive Warranty
System coverage included
99% Effective
Proven results
All Foundations
Expert installation
Get Your Radon Mitigation Consultation
Custom depressurization systems for your Atlanta home's foundation type
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