Your Radon Questions, Answered
Radon Testing & Mitigation FAQs
Radon testing and mitigation FAQs are essential for homeowners, buyers, and property owners who want to understand the risks associated with radon gas and how to address them. This page provides clear, straightforward answers to the most common questions to help you make informed decisions about protecting indoor air quality and your family's health.
Understanding Radon and Health Risks
What is radon?
Radon is a naturally occurring radioactive gas that forms from the breakdown of uranium in soil and rock. It moves through the ground and can enter homes through cracks, gaps, and other foundation openings.
Why is radon dangerous?
Radon exposure is the second leading cause of lung cancer in the United States and the leading cause of lung cancer among non smokers. Long term exposure to elevated radon levels increases health risks over time.
What radon level is considered unsafe?
The EPA recommends radon mitigation when indoor radon levels reach 4.0 pCi/L or higher. Even lower levels may still pose a health risk, which is why testing is always recommended.
Is radon common in East Tennessee?
Yes. East Tennessee's geology contributes to higher radon potential, which is why testing is recommended for all homes regardless of age or location.
Radon Testing Questions
Is radon testing required when buying or selling a home?
Radon testing is not legally required in Tennessee, but it is commonly requested during real estate transactions and strongly recommended to protect buyers and occupants.
How often should a home be tested for radon?
Homes should be tested every two to five years, or anytime major renovations, foundation work, or HVAC system changes occur.
Can a newly built home have high radon levels?
Yes. New construction homes can still have elevated radon levels, especially if radon resistant features were not installed or sealed correctly.
Is radon only a concern in basements?
No. Radon can affect slab homes, crawlspace homes, split level homes, and homes with basements. Any structure in contact with the ground can have elevated radon levels.
Can weather or seasons affect radon levels?
Yes. Radon levels can fluctuate due to weather conditions, soil moisture, and seasonal changes. This is why professional testing procedures and closed house conditions are important.
What do I need to do to prepare for radon testing?
Preparation typically includes maintaining closed house conditions during the testing period. Clear instructions are provided before testing begins.
How long does radon testing take?
Professional radon testing requires a minimum of 48 hours to collect accurate results under closed house conditions.
What's the difference between a DIY radon test kit and professional testing?
DIY radon test kits are affordable and useful for basic screening, but they typically provide only a single average result. Professional radon monitors record hourly readings, track testing conditions, and can detect environmental interference, providing a more detailed and reliable report. Certified professional testers are also required to maintain an ongoing quality assurance program to ensure their results remain consistently accurate.
Do you test for radon in water?
Yes, we test for radon in water, primarily for homes using a private well, since municipal water systems are already regulated for radon content. Water testing costs $225 per sample, and only one sample is needed per well. The test runs over a 48-hour period, and results reflect the average radon level detected during that time.
Radon Mitigation Systems and Installation
What is Pressure Field Extension (PFE) testing, and why does it cost extra?
We list PFE testing as a separate line item on your quote so you have an itemized breakdown of the cost. You're paying for our time and the precision equipment required to perform the test. PFE testing helps us determine the correct radon fan size needed to solve the issue, and it confirms whether the chosen mitigation system location will actually be effective before installation begins.
How long does it take to install a radon mitigation system?
For slab or basement properties, radon mitigation systems are typically installed and completed in one day. Crawlspace properties generally take two to three days, depending on size, access, and system design.
How much does a radon mitigation system cost?
Every home is different and requires a different amount of piping, materials, and labor. The mitigation system installation itself typically costs $1,600 to $1,800 for slab or basement homes, depending on the home's layout and foundation design. Most projects also include $300 for PFE diagnostic testing beforehand and $225 for post-mitigation verification testing, bringing the typical all-in project cost to $2,100 to $2,300. See our full radon mitigation cost breakdown for a line-by-line explanation.
Crawlspace properties are generally more expensive because the crawlspace must be fully encapsulated before a radon mitigation system can be installed, typically $3 to $4 per square foot in addition to the system cost. Pricing is based on the square footage of the property and the scope of work required.
What happens if my radon level is just under 4.0 pCi/L?
While mitigation is recommended at 4.0 pCi/L or higher, some homeowners choose to mitigate at lower levels for added peace of mind. Options are discussed based on comfort level and risk tolerance.
Do you offer financing or payment plans?
Yes, we accept financing through Affirm, which allows you to pay for the system over time. Interest rate and payment terms are determined directly by Affirm based on your application. We also offer a pay-at-close option for sellers, which carries a $125 administrative fee.
System Performance, Appearance, and Maintenance
Is there a warranty on the mitigation system?
Yes. The radon fan itself carries a manufacturer warranty of five to seven years, depending on the make and model installed. The mitigation system installation is backed by Rn86 Solutions' one-year warranty on materials and craftsmanship. We do not warranty a specific post-mitigation radon level, since too many variables (soil conditions, structural changes, seasonal fluctuations) affect long-term results, which is why we recommend periodic retesting to confirm continued performance.
Will a radon mitigation system increase my energy bills?
Radon mitigation systems use a low energy fan and typically add only a small monthly cost, similar to running a bathroom exhaust fan.
Do radon mitigation systems make noise?
Radon mitigation fans are designed to operate quietly and are typically installed outside or in non living spaces.
Will a radon mitigation system affect my home's appearance?
Mitigation systems are designed to be discreet. Exterior piping is routed to minimize visibility, and interior components are installed cleanly and professionally.
Do radon mitigation systems require maintenance?
Radon mitigation systems require minimal maintenance. Each system includes an alarm that alerts you if the system is not operating properly.
Can radon levels return after mitigation?
Properly designed mitigation systems provide long term radon reduction. Periodic retesting is recommended to confirm continued system performance.
Do you retest after installing a radon mitigation system?
Yes. Post installation testing is included to verify that radon levels have been successfully reduced. For ongoing system care after installation, including manometer readings, alarm troubleshooting, and re-testing schedules, see our system maintenance resource page.
Choosing a Radon Professional
Will a radon mitigation system hurt my home's resale value?
No. Properly installed radon mitigation systems are considered a safety improvement and often help prevent delays or concerns during resale.
Can a radon mitigation system be transferred to a new homeowner?
Yes. Radon mitigation systems remain with the home and continue protecting future occupants.
Do you test and mitigate commercial properties?
Yes. Rn86 Solutions provides radon testing and mitigation services for residential, commercial, and multifamily properties.
Are your technicians certified?
Yes. All Rn86 Solutions technicians are NRPP certified and follow ANSI/AARST standards for radon testing and mitigation.
Why should I choose a radon specialist instead of a general contractor?
Radon mitigation requires specialized training, testing protocols, and system design. Rn86 Solutions focuses exclusively on radon services to ensure accurate testing and effective long term solutions.
What areas do you serve?
We cover all of East Tennessee within roughly a 65-mile radius of our Oak Ridge headquarters, stretching from Crossville to Morristown, and from the Kentucky state line down to Athens.
Does homeowners insurance cover radon testing or mitigation?
In most cases, no. Standard homeowners insurance policies do not cover radon testing or the installation of a radon mitigation system because radon is a naturally occurring environmental hazard. However, if a covered event (such as a fire or storm) damages an existing radon mitigation system, the repair or replacement of that system may be covered. Coverage varies by insurer and policy, so check with your insurance provider for specific details.
If I'm selling my home, who pays for radon mitigation, buyer or seller?
There's no fixed rule for this, and we're not real estate professionals, so this isn't legal or transaction advice. Generally speaking, the current homeowner pays for the mitigation system. In some cases, the seller provides the buyer cash at closing so the buyer can have the system installed afterward. If you're a buyer, be aware that some sellers prioritize the lowest price and a passing test result over quality, which can lead to a rushed or improperly installed system. Make sure your real estate agent specifies that the mitigation system must be installed by an NRPP or NRSB certified mitigator, this helps ensure it's installed correctly with all required safety features.
Do you work with real estate agents and home inspectors?
Yes. Rn86 Solutions works closely with real estate agents, inspectors, buyers, and sellers to support smooth transactions and clear communication.
Still Have Questions?
Connect with the certified specialists at Rn86 Solutions for a professional consultation, or start with a certified radon test today.