How do you prevent radon in your home?

• <div><p>Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. </p><p>Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.</p></div>

Top-rated radon detection and reduction specialists.

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

Q: Do air purifiers help with radon?

• <div><p>No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.</p></div>

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

• <div><p>No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. 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 action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.</p></div>

Q: How much does it cost to replace a radon fan?

• <div><p>The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.</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>

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

*The Angi rating for Radon Detection And Reduction companies in Saint Martins, 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 Martins, 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 29, 2025

Reviewed in August 2025
I had my home treated by One Source Pest Solutions, LLC on August 18, 2025, and I couldn’t be more satisfied with the service. Loren and Blake were the technicians who came out—they were both professional, courteous, and clearly knowledgeable about what they were doing. They took the time to...
One Source Pest Solutions, LLC
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Reviewed in May 2024
The job was when when he said it would be done. I said to leave the sticks and stumps there and they picked them up and see them nice and neatly by the fence with out asking them to do. Cleaned up so good it looked like no one had work done to my trees
Fosters Tree Services LLC
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Reviewed in March 2024
We scheduled for Friday evening. Thursday afternoon they called and said they could come by and do it that afternoon. They came and it was loaded and removed in less than 30 minutes.The call to schedule and the removal all in the same say. You canâ t beat it.!
Chaos Cleanup Crew - Junk Removal, LLC
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Reviewed in February 2024
High winds took down a portion of an old maple tree in the front yard and left it unstable. We were left with a large hole in the roof as well due to impact. Colterâ s was very quick to look at the tree and give us an estimate. The next morning the tree and stump were completely removed and our...
Colter's Tree Service
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Reviewed in July 2023
John gallerano was an awesome technician and has excellent customer service. And awesome prices and great stock!
Precision Garage Door of Waco
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Reviewed in April 2023
They were very helpful in assisting with insurance claim. Arrived on site to do the work within a few days of insurance approval of replacement of the roof and completed the job in 2 days. Cleanup was immaculate. My neighbors and friends have given great comments on the roof. I cannot express...
Missouri Metal Roofing, LLC
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Reviewed in December 2022
First Chase was so quick to answer my online inquiry. Literally within minutes I had a quote for service (on a Sunday!) and the service scheduled in one more day! When does that ever happen? Chase and Alexa were very knowledgeable and willing to go the extra mile. I asked for a couple...
Safeguard Home Solutions
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Reviewed in August 2022
Ryan was truly wonderful in explaining what would be done and that they would clean and take everything away when the project was completed.
Continental Siding Supply, Inc.
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Reviewed in January 2022
They responded quickly and did a great job on sealing and cleaning my gutters.
Leaf Home Bath
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Reviewed in December 2021
I neded some trees removed, they did it quickly and cleanly
Cevet Tree Care
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Find Radon detection and reduction specialists in Saint Martins

Safeguard Home Solutions

5.0(

)

Serving Saint Martins, MO and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Received information about our Radon testing device that made us feel more comfortable about it working properly. We were treated with respect."

Response time8 hrs

5 neighbors recently requested a quote

Recommended by89%of homeowners

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Full Scope Home Inspections

5.0(

)

Serving Saint Martins, MO and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"Randall went above and beyond what I thought would be done for a home inspection, was willing to crawl into small spaces. He did a very thorough job, and his report was very detailed, and that's why we appreciate his work."

Response time3 hrs

Response rate93%

Recommended by100%of homeowners

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SWAT Environmental, Inc.

4.5(

)

Serving Saint Martins, 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

Serving Saint Martins, MO and surrounding areas

In business since 2020

Free estimates

Credit card accepted

"I like how much of a perfectionist he was and how timely he was. Most of all, I have a special need son and he was so kind to him and patient. His interaction was beyond. He truly has a great heart."

Response time3 days

Recommended by100%of homeowners

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Braun's Inspection Consultants

4.7(

)

Serving Saint Martins, MO and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"James performed the inspection like a real professional."

Recommended by100%of homeowners

Serving Saint Martins, 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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Brandsted Property Preservation

New to Angi

Serving Saint Martins, MO and surrounding areas

In business since 2011

Free estimates

With over 10 years of experience in the home inspection industry, we are the experts you need to take care of your home. We will treat your home as we would treat our own. Give Brandsted Home Inspections a call today. We look forward to working with you.

Response time10 mins

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Radon Detection and Reduction questions, answered by experts

No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. 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 action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter.

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

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.

The Saint Martins, 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.

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What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.