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Q: What steps should be taken if high radon levels are detected?

• <div><p>If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.</p></div>

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: Do radon mitigation systems decrease home value?

• <div><p>No, radon mitigation systems do not decrease home value or make a home harder to sell. In areas where homes experience similar radon exposure risks, a radon mitigation system is viewed as an improvement. Potential homebuyers often opt to buy a home with a radon mitigation system already installed to reduce the risk of cancer for their families.</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>

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 Charleston, MO

*The Angi rating for Radon Detection And Reduction companies in Charleston, 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 Charleston, 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 February 02, 2026

Reviewed in February 2026
Louise is so super great at what she does. Very fast and great cleaner. I'll definitely hire again.
Weezer's Cleaning Service
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Reviewed in August 2025
We hired MAR Painting to paint our home's exterior and were thoroughly impressed from start to finish. The communication was excellent, with clear explanations of the process and timelines. The team arrived on time, worked efficiently, and paid incredible attention to detail, ensuring a...
MAR Painting
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Reviewed in June 2025
Aidan was very professional and displayed professionalism most would not expect from those his age. He left my home?s exterior spotless and I could not recommend him enough.
Bee's Knees Pressure Washing
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Reviewed in November 2024
Iâ m so happy I chose this company for my project. They were respectful and knowledgeable, thorough and CLEAN! Most guys come in to do a job and are sloppy or leave a mess, not them. All my concerns were addressed and the job was done in a reasonable amount of time. Also, well worth the money -...
DONE RIGHT LOW VOLTAGE
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Reviewed in February 2024
Really friendly and easy to work with.
Roof on Brand
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Reviewed in September 2023
A wall and ceiling were falling down due to a leak in the roof. They made the wall and ceiling perfect again. They do excellent work.
Little Bear Company Home Improvement Services, PLLC
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Reviewed in August 2022
Very affordable and responsive I had a massive tree removed would use this company again!
Shaffer Lawn and Tree Service
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Reviewed in June 2022
The workers were very courteous and nice. However, they did not do a good job of cleaning up. Left sawdust everywhere and dirty handprints on bathroom counter and white woodwork. Replaced subfloor in half a room and replaced floor joists. That half of the room's floor was 3/4" lower than the...
Foundation Recovery Systems
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Reviewed in May 2022
He does a great job, a respectful, and is timely.
Bootheel Exteriors, LLC
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Reviewed in January 2022
It took him a while, but it's okay. He has all his tools and did it very well.
Quality Interior
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Find Radon detection and reduction specialists in Charleston

Municipal Environmental Services

New to Angi

Serving Charleston, MO and surrounding areas

Approved

In business since 2025

Free estimates

Offers commercial services

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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Radon Detection and Reduction questions, answered by experts

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

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

No, radon mitigation systems do not decrease home value or make a home harder to sell. In areas where homes experience similar radon exposure risks, a radon mitigation system is viewed as an improvement. Potential homebuyers often opt to buy a home with a radon mitigation system already installed to reduce the risk of cancer for their families.

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

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 Charleston, 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

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.
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.
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.
Audrey Bruno
•
May 2, 2026May 2, 2026
Can a Homeowner Install a Radon Mitigation System?
Can a homeowner install a radon mitigation system? While some parts of the project are fine for DIY, you should leave the meat of the task to a licensed professional.
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.
Jacqueline DeMarco
•
May 2, 2026May 2, 2026
What Is Radon and How Does It Get In Your Home?
What is radon gas? Find out what this radioactive gas is, why it is dangerous, how it gets in your home, and how to mitigate it.