Protect your health. Test your home.



St. Louis Radon's Guarantee

Our Guarantee

You can count on St. Louis Radon for professional, clean work every time. We design and install the best possible system for each home. Almost every home will have options for installation. We never take the easy road over the most appropriate.

"No matter how complex the installation, or how high the levels of radon, all radon problems can be remedied."

  • Comprehensive Installation - We will install the best possible, fully complete system every time.
  • 5 Year Warranty -  System performance is guaranteed in writing and backed by a 5-year transferable Radon System Warranty.
  • Post Mitigation Clean-up - We will respect your home with spotless post mitigation clean- up every time.
  • Follow-up Testing - Follow-up testing is provided with Sun Nuclear 1028 CRM machines
  • Graphed Test - Graphed Test results immediately follow the testing period via email or postal service.
  • Radon Test - We guarantee your Radon Measurement Test will be accurate.
  • Reporting & Documentation - You will always be able to count on us for timely reports and documents

Call us today at 636-200-2875 to request a quote or schedule a test today.


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