Radon Mitigation System
Installations for Asheville & Western NC
Western North Carolina geology demands effective radon mitigation. Radon Control Products designs powerful radon mitigation systems specifically for properties in Asheville, Hendersonville, Black Mountain, Brevard, and beyond, ensuring your family breathes cleaner, healthier air every single day.
What Is Radon Mitigation & How Does It Work?
Radon mitigation is the process of reducing high levels of radioactive radon gas inside your home. The most common method of mitigation is sub-slab depressurization. This technique involves installing a PVC pipe through your foundation floor into the soil below.
A continuously running, specialized exhaust fan connects to this pipe. It pulls the harmful radon gas out from beneath your house before it can seep inside, venting it above your roofline where it quickly dissipates into the outdoor air.
99%
of homes can be mitigated to safer radon levels.
< 2.0
pCi/L is the average post-mitigation radon levels we achieve.
Benefits of Radon Mitigation
A professionally installed radon mitigation system does more than lower radon levels. It creates a healthier indoor environment for your family, while adding long-term value and peace of mind to your household.
Reduce Radon Below EPA Thresholds
Our systems consistently reduce radon levels to well below the 4.0 pCi/L EPA action level.
Protect Long-Term Health
Work to avoid the second leading cause of lung cancer from your home with proven mitigation technology.
Improve Indoor Air Quality
Beyond radon reduction, mitigation systems help improve overall air quality by venting soil gases outdoors.
Energy-Efficient Design
Low-power fans and sealed systems are designed to minimize impact on your energy bills.
Long-Term Monitoring Options
Ongoing radon monitoring ensures your system continues performing at peak effectiveness.
Professional Maintenance
Regular system check-ups keep your mitigation system running reliably year after year.
What Are the Different Types of Radon Mitigation Systems?
Selecting the right radon mitigation system depends entirely on your home’s unique foundation and structural design. Our expert technicians carefully evaluate your property to install the most effective solution for optimal air quality.
Sub-Slab Depressurization
This highly effective method utilizes a specialized fan and PVC piping to draw gas from beneath concrete floors.
Sub-Membrane Depressurization
We seal your dirt crawl space with a thick plastic vapor barrier and vent the trapped gases outdoors.
Block-Wall Depressurization
This technique depressurizes hollow cinder block foundation walls, actively pulling out trapped radioactive gases before they enter your home.
Sump Pit Depressurization
By sealing your existing sump pump basin, we utilize your internal drain tile network to efficiently vent soil gases.
Three Steps to Our Radon Mitigation Services
Diagnostic Assessment
We inspect your home’s foundation, construction type, and radon entry points to design the most effective mitigation strategy for your specific situation.
Mitigation System Installation
Our certified specialists install a customized sub-slab depressurization system using energy-efficient, low-noise fans to direct radon away from your living space.
Post-Installation Testing
We test radon levels after installation to confirm the system is working effectively and ensure your home meets EPA safety guidelines for radon.
What Our Clients Say
We worked with Henri to put in a radon mitigation system because our radon levels were too high. He was prompt, knowledgeable, and helpful. His installer was also good to work with and the system has been working well!
Morgan M.
★★★★★
Henri was both professional and cordial. He provided a solution that addressed my radon concerns and delivered it at a reasonable cost well within my budget.
David D.
★★★★★
Henri was great. He did all that he said would do and we got the desired results. His communication was excellent as well as the quality of the work. Thank you.
Jack B.
★★★★★
Henri at Radon Control products was amazing. He worked with us to solve our radon issues and found us the most effective affordable solution. He dropped our radon levels way down to acceptable levels. He was dependable, always showed up when he said he would, and never charged us more than the quoted amount.
Karen H.
★★★★★
Common Questions
About Mitigation
Everything you need to know about radon mitigation in Hendersonville, NC and Western North Carolina.
Is a radon mitigation system noisy?
A properly installed radon mitigation system operates quietly enough that most homeowners forget it is running at all. The fan, which is the only mechanical component of the system, produces a low, steady hum similar to a bathroom exhaust fan. In most installations, the fan is mounted outside the home or in an unfinished area like a garage or attic, which further reduces any audible presence in your living spaces.
If a radon mitigation system becomes noticeably loud, rattles, or changes in sound over time, that is typically a sign that the fan needs to be inspected or replaced. Unusual noise can indicate a failing motor or a blockage in the system. Routine monitoring ensures your system continues running efficiently and quietly while maintaining the low radon levels confirmed through follow-up radon testing.
Where should a radon mitigation fan be installed?
The placement of a radon mitigation system fan depends on your home’s construction type, foundation design, and the most practical routing for the exhaust pipe. In most sub-slab depressurization systems, the fan is installed along the pipe that runs from beneath the foundation to the exterior of the home. Common locations include the exterior wall, garage, attic, or a utility area where the pipe can exit safely above the roofline.
The most important requirement is that the fan exhausts radon gas outside and above the living areas of the home, preventing it from re-entering through windows or doors. One of our certified radon mitigation system installers will evaluate your home’s layout to determine the most effective and code-compliant placement. Improper fan location can compromise system performance and put your family’s health at risk.
Does radon mitigation also help with basement moisture or odors?
A radon mitigation system is designed specifically to reduce radon gas levels, but it can also have a positive secondary effect on basement moisture and musty odors in certain situations. Sub-slab depressurization systems work by drawing air from beneath the foundation and venting it outside, which can reduce the amount of moisture and soil gases that migrate upward into the home. Homeowners sometimes notice an improvement in air freshness after installation.
With that in mind, a radon mitigation system is not a substitute for proper waterproofing or moisture control measures. If your basement has significant water intrusion, that issue should be addressed separately. Any improvements in odor or humidity are a welcome benefit, but confirming reduced radon levels through follow-up radon testing remains the primary measure of whether your mitigation system is doing its job effectively.
Can I install a radon mitigation system myself?
DIY radon mitigation system kits exist, but installing one without proper training and certification carries real risks. Effective mitigation requires a thorough understanding of your home’s foundation type, soil conditions, and airflow dynamics. An incorrectly placed suction point, undersized fan, or improper pipe routing can result in a system that appears functional but fails to adequately reduce radon levels. In some cases, a poorly installed system can even redistribute radon to other areas of the home.
Certified radon mitigation professionals follow EPA and NRPP guidelines to ensure systems are designed and installed correctly for each specific home. Professional installation also includes follow-up radon testing to verify the system is achieving meaningful reductions. Given that radon is the second leading cause of lung cancer in the country, this is one project where professional expertise genuinely matters.
Do I need to retest for radon after mitigation?
Yes, radon testing after installation is an essential step that should never be skipped. A radon mitigation system can only be confirmed effective through post-mitigation radon testing, which measures whether indoor levels have been reduced below the EPA’s recommended action level of 4.0 pCi/L. At Radon Control Products, post-mitigation testing is a standard part of every installation we complete.
Beyond the initial post-installation test, ongoing radon testing is recommended every two years to ensure the system continues performing as intended. Fans can wear over time, and changes to your home’s structure or soil conditions can affect results. Some mitigation systems include a visual indicator that alerts you if suction is lost, but that is not a substitute for actual radon level measurement. Regular testing is the only way to confirm your family’s continued protection.
Radon Mitigation Western North Carolina & Upstate South Carolina
We provide professional radon mitigation services throughout Western North Carolina, including Hendersonville, Asheville, and upstate South Carolina. Our team is local, certified, and ready to protect your home.
Don’t see your area listed? We likely serve your community too. Contact us to confirm service availability in your location.
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Schedule Your Radon Mitigation Consultation
We pride ourselves on better protecting homes throughout Western North Carolina. Contact us for a professional assessment and get a custom mitigation plan for your home.
Mon–Fri: 9am–5pm · Sat–Sun: Closed
Keeping these systems running at peak performance involves routine repair and maintenance – we offer this as part of our residential radon services.
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