Top-rated radon detection and reduction specialists.

Best radon detection and reduction specialists near Hermann, MO

Q: What are the benefits of radon mitigation?

• <div><p>Mitigation reduces radon levels, protecting your health and complying with safety standards.</p></div>

Q: Why is my radon mitigation system so loud?

• <div><p>Your radon mitigation system may be loud because it&rsquo;s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.</p></div>

Q: Can I install my own radon mitigation system?

• <div><p>A <a href="https://www.angi.com/articles/can-homeowners-install-radon-mitigation-systems.htm">homeowner can install a radon mitigation system</a> on their own. But it&rsquo;s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.</p></div>

Q: How is radon gas abatement professionally handled?

• <div><p>Abatement includes sealing entry points and venting with systems that reduce radon levels below recommended EPA limits. It is handled by certified professionals.</p></div>

Q: What is considered a safe or dangerous level of radon?

• <div><p>No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Hermann, MO

*The Angi rating for Radon Detection And Reduction companies in Hermann, 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 Hermann, 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 August 19, 2026

Reviewed in August 2026
Robert, Chase and Shayton did a great job on my foundation stabilization.
Foundation Recovery Systems
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Reviewed in April 2026
Randy’s team did an amazing job on our deck, driveway and siding. I highly recommend him and his team for any power washing needs.
Elite Parking Lot Detailing
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Reviewed in January 2026
He was super nice and I loved the way he cut my tree
Garcia Lawn Services
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Reviewed in June 2025
This was actually a job Shannon and the crew did for us on some steel foundation work, posts, beams and columns. Steelwork was cleaned, prepped, primed and protected with multiple coats in about 8-10hrs. Really great color and finish, we are nearly going on 18 months with no fading, wear,...
A Touch Above Painting
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Reviewed in December 2023
Bill and his son did an excellent job. He called me to let me know when he was going to arrive, kept me posted through out, loaded the items promptly in a covered trailer, and was extremely professional and courteous. A fantastic veteran owned business that I am honored to endorse and...
Chaos Cleanup Crew - Junk Removal, LLC
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Reviewed in November 2023
Awesome job! Efficient and Professional! Thank you, again!!
T & J Tree Service LLC
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Reviewed in September 2023
Clear, concide estimate of job. Promt response to come to house for job inspection. Work completed in 1/2 day. Courteous worker arrived pn time and cleaned up site after.
Keep Dry Roofing, LLC
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Reviewed in July 2023
Don was very professional and prompt. He communicated well, and provided excellent service! We will gladly work with him again!
Reliable Septic & Portable Toilet
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Reviewed in December 2022
My homeowners insurance told me I had to clean up my yard/ flower beds to be insurable.. I connected with this company through Angis List. It was a fantastic experience. I was able to set everything up through text and the work was done immediately. I connected with them on Monday, they sent me...
CTC Landscaping, LLC
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Reviewed in February 2022
Always checked with us and explained everything as to how the project would be completed. Awesome customer service.
CS Fencing & Lawns, LLC
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Top-Rated Radon detection and reduction specialists in Hermann - Updated Nov 2026

Metro Radon Control of St. Louis, LLC

4.9(

171

)

Radon Gas - Abatement

Serving Hermann, MO and surrounding areas

In business since 2011

Free estimates

Emergency services offered

"He was very professional and courteous. He brought a radon gas monitor in my home to test radon levels and he said that everything was okay. And I didn’t have a problem with radon."

Response time6 hrs

Recommended by99%of homeowners

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SWAT Environmental, Inc.

4.5(

)

Radon Gas - Abatement

Serving Hermann, MO and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"Overall everything was pretty good. I felt the installation could have looked much cleaner but it is fine. I still haven't re tested to see what my radon levels are now."

Recommended by97%of homeowners

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Braun's Inspection Consultants

4.7(

)

Radon Gas - Testing

Serving Hermann, MO and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"very professional and conscientious. timely in responses and thorough in inspection"

Recommended by100%of homeowners

Serving Hermann, MO and surrounding areas

In business since 2005

Free estimates

Mid MO Inspectors will provide you or your business with a full service approach to all your inspection needs. Please feel confident in contacting Mid MO Inspectors for your next inspection.

Recommended by100%of homeowners

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Radon Detection and Reduction FAQs, answered by experts

Mitigation reduces radon levels, protecting your health and complying with safety standards.

Your radon mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

Abatement includes sealing entry points and venting with systems that reduce radon levels below recommended EPA limits. It is handled by certified professionals.

No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.

The Hermann, 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

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
•
Sep 28, 2026Sep 28, 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.
Angi
•
Sep 23, 2026Sep 23, 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.
Amy Freeman
•
Jul 9, 2026Jul 9, 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.
Jacqueline DeMarco
•
Jul 9, 2026Jul 9, 2026
What Is Radon Testing?
What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.
Audrey Bruno
•
Jul 8, 2026Jul 8, 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.