Radon Testing and 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. Radon is an invisible, odorless radioactive gas that can accumulate inside homes and buildings, posing serious long term health risks if left untreated. Because radon cannot be detected without professional testing, many people have questions about safe radon levels, mitigation options, installation time, and cost. This page provides clear, straightforward answers to the most common radon testing and mitigation 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.

Radon Mitigation Systems and Installation

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.

Sub slab mitigation systems for slab or basement homes typically range from $1,500 to $2,500, depending on the home’s layout and foundation design.

Crawlspace properties are generally more expensive because the crawlspace must be fully encapsulated before a radon mitigation system can be installed. 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.

System Performance, Appearance, and Maintenance

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.

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.

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.

Are you ready to schedule you Radon testing or mitigation with Rn86 Solutions?