Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Saint Clair, MO

Q: How do I test for radon gas?

• <div><p>Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.</p></div>

Q: What is the biggest source of radon?

• <div><p>The soil beneath your house is most likely what&rsquo;s causing an increased level of radon. This is because soil holds radioactivity for a long time and it&rsquo;s also what most buildings are built on. Another common source of radon is water from a source that hasn&rsquo;t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.</p></div>

Q: Do radon mitigation systems come with warranties?

• <div><p>Yes, many systems include warranties for performance. Confirm terms with your installer.</p></div>

Q: Can you remediate radon yourself?

• <div><p>There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.</p></div>

Q: How often should radon levels be tested to ensure safety?

• <div><p>Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Saint Clair, MO

*The Angi rating for Radon Detection And Reduction companies in Saint Clair, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

*The HomeAdvisor rating for Radon Detection And Reduction companies in Saint Clair, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

Last update on July 11, 2025

Reviewed in July 2025
Brendon was great to deal with, and he showed up on time and his price was more than fair. Very happy with the work he performed. I would use Sanders Home Solutions again for future projects.
Sanders Home Solutions
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Reviewed in March 2025
Marcus and his crew were very good professional. He communicated very well and explained exactly what he was going to do. Results spoke for themselves! Definitely highly recommend.
Total Softwash Solutions
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Reviewed in October 2024
My backyard was sloped and he graded it and add rock in an area. Also, removed large rocks from my back yard. Very happy with the work that was done that I had him to odd carpenter jobs too.
Krupinski & Sons LLC
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Reviewed in June 2024
Tom did an amazing job and the steps needed some extra trim out due to the way they were installed. It was professional, Tom has excellent carpentry skills, promptness and customer service!
TMT Flooring
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Reviewed in April 2024
After years of providing my family with reasonably priced repairs to both AC unit and furnace, we finally replaced our HVAC system. I have been using this company for over 12 years and have NEVER been disappointed. They are professional, honest and punctual. They even left no trace of all the...
ROETTERING HEATING & COOLING
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Reviewed in October 2023
He power washed and stained the outside of our cedar home and did an excellent job.
That Cleaning Company
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Reviewed in February 2023
Lance and his son did an excellent job! Upfront and honest. I would 100% recommend using them and I will be using them again for future projects! Thank You
Stars & Stripes Lawn & Landscaping, LLC
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Reviewed in October 2022
Timely, thorough, and clear explanation of his analysis and what could be done are not done to restore previous performance.
Arrow Mechanical
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Reviewed in May 2022
I was in the market to find someone to remove old awning, haul away and install a new awning that I had purchased. I went online with Home Advisors and posted my project and no sooner than five (5) minutes I received a contact with Rachel with Innovative Shade Solutions. Very nice and pleasant...
Innovative Shade Solutions, LLC
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Reviewed in January 2022
Eric is fantastic to work with. He was up front and honest with what the issue was, what his costs were, and how long I should expect the work to take. He kept me informed throughout the project and did an excellent job. Eric is definitely my go to electrician from here on out.
Lammert Electrical & Wiring Solutions LLC
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Find Radon detection and reduction specialists in Saint Clair

ATM Home Inspection, LLC

4.8(

)

Serving Saint Clair, MO and surrounding areas

Approved

In business since 2011

Free estimates

Credit card accepted

"They did a great job. Very through, prompt, and friendly!"

Response time50 mins

Response rate88%

1 neighbors recently requested a quote

Serving Saint Clair, MO and surrounding areas

In business since 2023

Free estimates

Small jobs welcome

"TESTING FOR ASBESTOS I need to make sure people know about a man named Jeff Miller Owner of Scope Environmental. I wanted to have my basement checked for Asbestos. This man was absolutely the nicest person. Jeff is a professional, who explained things extremely well and in detail, offered positives suggestions, and extremely knowledgeable. Oh, and extremely honest and helpful. If you ever want to have your basement checked for Radon or Asbestos or Mold, please call this nice man who has a vast amount of experience and knowledge on these three issues. His phone number is 314-220-1810. His pricing is very reasonable and he is Certified in the State of Missouri which is a requirement by the State to do testing. He sure put my mind at peace."

+10

Response time4 hrs

Response rate96%

Recommended by73%of homeowners

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AAA Environmental & General Contracting

New to Angi

Serving Saint Clair, MO and surrounding areas

In business since 1980

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

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Armistead Contracting

3.5(

)

Serving Saint Clair, MO and surrounding areas

In business since 2016

Free estimates

Credit card accepted

"They showed up early and did a gteat job. They cleaned up everything after they were done!"

Response time2 days

Recommended by71%of homeowners

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Radon Detection and Reduction questions, answered by experts

Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

Yes, many systems include warranties for performance. Confirm terms with your installer.

There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.

Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.

The Saint Clair, MO homeowners’ guide to radon detection and reduction services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles

Angi
•
Mar 18, 2026Mar 18, 2026
How Much Does Radon Testing Cost? [2026 Data]
Find out what impacts radon testing costs, including average prices for DIY kits and professional services, so you can protect your home and budget confidently.
Alison Kasch
•
Apr 6, 2026Apr 6, 2026
How Much Does Radon Remediation Cost? [2026 Data]
Get clear answers on how much radon remediation costs, including average prices, key cost factors, and tips to save money on your home’s radon mitigation.
Mitchell Grant
•
Mar 18, 2026Mar 18, 2026
How Much Does a Radon Mitigation System Cost? [2026 Data]
The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
Amy Freeman
•
Apr 5, 2026Apr 5, 2026
Who Installs Radon Mitigation Systems?
Radon is a gas that you can't see or smell and is harmful to your health. If your home has radon, you need to know who installs radon mitigation systems.
Audrey Bruno
•
May 3, 2026May 3, 2026
How to Test for Radon in Your Home
Knowing how to test for radon will keep your home free and safe from this odorless gas—you just have to decide whether to do it yourself or hire a pro.
Kyle Schurman
•
May 21, 2026May 21, 2026
How Does a Radon Mitigation System Work? And How Do You Keep Yourself Safe?
How does a radon mitigation system work? Learn more about how it pulls air and radon from the soil and expels it before it can enter your house.