Receiving an elevated radon test result can feel overwhelming. As the [second leading cause of lung cancer in the United States](https://empowerdxlab.com/articles/radon-the-silent-threat-in-your-home), and the leading cause among non-smokers, high levels should be taken seriously.

Here’s what to do if you’ve received test results noting elevated radon levels:

1. Retest to Confirm Your Radon Results

The EPA recommends following up with a long-term test or a second short-term test to get a better understanding of your radon level as the seasons change. If your first test was 8 pCi/L or more, the EPA recommends taking a short-term test immediately.

What Your Second Radon Test Results Mean

Long-term radon test: if your result is 4.0 pCi/L or higher, start working on a radon mitigation system.
Short-term radon test: Average your first and second test (by adding the results together, then dividing by two). If the average is 4.0 pCi/L or higher, the EPA recommends radon mitigation.

What is a Safe Radon Level?

The EPA action level is 4.0 pCi/L, but no level of radon is completely risk-free.

2. Find a Qualified Radon Mitigation Contractor

When it’s time to install a radon elimination system, hiring a qualified professional is essential.

The EPA recommends hiring a certified contractor. Many states offer lists of contractors that are licensed or certified in radon removal.

To find your local EPA’s radon resources, visit this website: https://www.epa.gov/radon/epa-map-radon-zones-and-supplemental-information

3. Implement a Radon Elimination System

A professional contractor will evaluate the best methods to prevent or reduce radon levels from your home. A professional contractor will evaluate your home and create an approach based on the foundation type, features, and construction history.

Here are the most common methods used to reduce radon:

Sub-slab Depressurization

This is the most common and often most effective radon reduction method for those who have homes with basements or slab-on-grade foundations. It works by inserting suction pipes through the floor slab and into the ground underneath the home. A fan then draws radon gas from below the foundation, through the pipes, then vents it into outside air.

Drain Tile Suction

Another method for homes with basements or slab-on-grade homes are to use drain tiles. Drain tiles are pipes that capture groundwater and pull it away from the foundation or basement of the home, designed to prevent flooding, but they are also often effective at reducing radon levels when suction is applied. They are typically made from PVC or clay, and can be effective depending on how the drain tiles are installed.

Submembrane Suction

If you have a dirt crawlspace beneath your home, submembrane suction is the most effective way to reduce radon levels. This method is when you cover the ground beneath the crawlspace with a reinforced plastic sheet. A pipe penetrating the sheet pulls radon from the crawlspace and vents it away from the house.

How Much Does a Radon Mitigation System Cost?

The cost of radon elemination systems varies based on your location, the size and foundation type of your home, and the method used. According to the Environmental Protection Agency, “most types of radon reduction systems cause some loss of heated or air conditioned air, which could increase your utility bills”. A qualified radon contractor can evaluate your home and provide an estimate.

4. Retest After Installing a Radon Mitigation System

It’s important to confirm that your system is working effectively.

The EPA recommends conducting a follow-up radon test within 30 days of installation to ensure the levels have been reduced.

Some contractors may offer to test as part of their service, but the EPA also recommends conducting one yourself for verification.

For full guidance on radon mitigation systems and finding the right contractor, you can view the EPA’s Consumer’s Guide to Radon Reduction.

Get Accurate Results with an empowerDX Radon Test

Whether you’re confirming an initial result or checking your radon mitigation system, using a reliable radon test is essential.

With the empowerDX short-term radon test, you can trust that your results are accurate, reliable, and professionally analyzed.

The process is simple: order a kit, place the sampler in your home, and return it to the country’s #1 radon testing lab.

Need results fast? The empowerDX Radon test comes in two versions – both with identical collection materials, instructions, and professional lab analysis—the only difference is how quickly you need results.

Standard Radon Test Kit: Results available within 3–5 business days after your sample arrives at the lab. Return shipping is arranged by you using your preferred carrier.
Express Radon Test Kit: Includes overnight prepaid return shipping and delivers results the same business day your sample is processed (when received by 10 a.m.).