A professional Radon testing and mitigation company serving Missouri
Radon is the #1 environmental hazard and the leading cause of lung cancer among non-smokers in the Missouri. At Less Radon, our certified experts detect, reduce, and eliminate radon, protecting your health and your family’s future.
Get a Free Quote Now
- If I don’t smoke, I’m safe from lung cancer.
- Radon isn’t a problem in new homes.
- I don’t have a basement, so I don’t need to worry.
- I don’t live in a radon zone, so I’m fine.
- I can smell or feel radon if it’s there.
- I have a new home, I don’t need to worry about Radon
- None of my neighbors have radon so I don’t
- I don’t live in a high radon zone
- Radon is the #1 cause of lung cancer in non-smokers. It kills over 20,000 people in the U.S. every year.
- Radon can enter any home—old or new, with or without a basement. In fact, airtight modern homes can trap radon more easily.
- Radon enters through the ground—basement or not. Slab-on-grade and crawl space homes are also at risk.
- Radon levels vary house by house, not just by region. The only way to know your risk is to test your specific home.
- Radon is odorless, colorless, and tasteless. You won’t know it’s there until it’s tested.
Understanding Radon and Its Health Risks
Watch this short video to learn how radon forms, why it’s dangerous, and how professional testing and mitigation can protect your family and home.
Protect Your Kids & Pets from Radon— The Silent Killer!
Services
Certified Radon Testing & Mitigation Services
Expert Radon Services with advanced tools, proven results and years of industry experience.
Radon Testing
Testing is the only way to determine if your home has an unsafe level of radon.
Radon Mitigation
Quite simply, it is the professional reduction of radon, a type-A carcinogen.
Is Your Home Really Safe? Test and Know.
Learn which test fits your needs and keep your home safe year-round.
Short-Term Tests
Perfect for quick checks, real estate transactions, or initial screenings, short-term tests provide fast results that help determine whether additional testing or mitigation is needed.
Mid-Term Tests
Ideal for follow-up after mitigation or when short-term results are close to the action level, mid-term tests provide a more accurate average of radon levels over time.
How Often Should You Test?
The U.S. Environmental Protection Agency (EPA) recommends testing every two years. Regular testing ensures your home remains safe as structures, ventilation, or conditions change.
How Does Radon Enters Your Home?
Water Supply
Groundwater can carry dissolved radon gas. When you shower, cook, or wash clothes, the water releases radon into the indoor air, increasing your family’s exposure risk.
Construction Joints
Spaces where walls meet floors or where concrete slabs join, small gaps form. These joints provide an easy channel for radon to move upward into your living areas.
Crawl Spaces
Unsealed crawl spaces allow radon from soil gases to rise directly into your home. Poor ventilation in these areas often increases radon concentration in connected spaces.
Drains and Sump Pits
Uncovered or poorly sealed sump pits and floor drains provide direct access points for radon. Water systems linked to the soil often allow radon to escape inside.
Cracks
Radon seeps through tiny cracks in basement floors, foundations, and walls. Even hairline openings act as pathways, letting this invisible gas enter and build up inside your home.
Soil
Stella’s Story
Meet Stella – Your Radon Safety Guide
Stella is a fictional character designed to help explain how radon affects homes and families. With a sense of smell 10,000 to 100,000 times stronger than humans, she shows how radon can quietly build up in basements, crawl spaces, and foundation cracks.
Through Stella’s perspective, we make it easier to understand the invisible dangers of radon, the importance of testing, and the steps needed for effective mitigation. She guides homeowners on the steps needed to keep their homes and loved ones safe from radon.
Our Packages
Radon Mitigation Packages
ProGuard Package
Mid Range
Starting at
$1,495
- Upgraded Radon Fan
- 7-Year Warranty
- Free Radon Testing for First 2 Years
- Includes Initial Inspection
- Includes Follow-Up Radon Test
HomeShield Package
Standard
Starting at
$995
- 3-inch Piping
- All Electrical Wiring
- Standard Radon Fan
- 5-Year Warranty
- Post-Installation Re-Test
- Unconditional Guarantee
TotalProtect Package
Premium
Starting at
$1,995
- Lifetime Warranty
- Continuous Radon Monitor (Upgrade)
- Veteran Discount
- Real Estate Agent Discount
- Senior Citizen Discount
- Service Plan (Upgrade)
Book Your Radon Safety Inspection Today
Lives Impacted by Radon Exposure
These stories show how invisible radon gas can affect even the healthiest individuals and why testing and mitigation are essential for every home.
Client Reviews
What Our Clients Are Saying
Less Radon made the whole process simple. They assessed our basement, explained what needed to be done, and finished the job faster than expected. My family feels safer, and the air feels fresher.
Andy H.
Friendly team, fair pricing, and no nonsense. I got quotes from three companies, and Less Radon stood out for being honest and direct. Happy with the outcome and happy to recommend them.
John D.
I had no idea radon was even an issue until a friend mentioned it. I called Less Radon out of curiosity and ended up scheduling an inspection. They were polite, efficient, and surprisingly informative. It felt more like a team helping than a company selling.
kevin M.
FAQs
Have Questions? Find your Answers
Radon is a colorless, odorless radioactive gas that forms from underground uranium decay. Prolonged exposure can lead to lung cancer and is the leading cause among non-smokers.
It seeps in from the soil through cracks in foundations, floors, basements, and crawl spaces, gradually building up indoors.
We offer certified radon testing, mitigation, repairs, and full inspections — all backed by expert guidance and a 6-year warranty.
LessRadon offers both short-term and long-term testing options, including a free test. It’s the only way to know if your home is affected.
We proudly serve all major areas of USA and surrounding suburbs.
Protect Your Health & Property by Contacting Less Radon
For more information about Less Radon's exceptional radon testing and mitigation services, please contact our team of experts today.
Contact Us
Insights/Blogs
