Protect your health. Test your home.



St. Louis Radon Certifications

Licensed and Insured

  • NRPP- National Radon Proficiency Program Member.
    • Certified Radon Measurement & Mitigation contractors.
  • IEMA - Illinois Emergency Management Agency
    • Certified Radon Measurement and Mitigation contractors.
  • Professional Engineer - We have a licensed professional engineer on staff. 
  • AARST - American Association of Radon Scientists and Technologists Member.
  • We are fully Insured with a 2 million dollar General Liability policy.
  • Workers Compensation, Umbrella and Pollution Liability Insurance Coverage is provided for your protection.

Our licensing, certification and insurances will always remain current, including, workers compensation and pollution liability insurance.

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