Protect your health. Test your home.



Missouri Residents Free Radon Testing Program


The Free Radon Test Program is not intended to be a substitute for buyers testing in Real Estate transactions. It is recommended that buyers hire a NRPP/AARST/IEMA certified Radon measurement professional when testing during a real estate transaction.

You may choose this, however, if you are the seller of a home and want to take a proactive approach before it goes on the market or if you are testing for your own peace of mind.

Register for your Free Radon Testing Kit


The first step to help ensure the safety of you and your family’s health and safety is to have your home tested for radon. At St. Louis Radon, our professional testers deploy the latest in computerized electronic real-time radon monitoring technology to provide you with a comprehensive report, including a complete visual graph of radon level data points as recorded over a 48-hour sampling period.

Learn More About Testing


If testing indicates levels of radon that require action, our team of engineers and technicians will design and install a custom radon mitigation system to safely and effectively redirect radon and other soil gasses out of your home. We also take additional measures to seal and close other possible breaches in the foundation that could let soil gasses into the through cracks or drain tiles systems.

Learn More About Mitigation

New Construction

With new home construction projects, it is crucial to determine the level of radon that may be present in the soil before the home is built. It’s also critical to have the new home retested for potential radon concentrations immediately following occupancy. We also highly recommend installing an Active Dampness Control System (ADC) with every new build.

Learn More About New Construction