Top-rated radon detection and reduction specialists.

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

Q: Is radon mitigation worth it?

• <div><p>Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home&rsquo;s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.</p></div>

Q: Is it okay to live in a house with radon?

• <div><p>Ideally, no one will live in a house with elevated radon levels, as prolonged exposure increases the risk of serious health issues like lung cancer. However, homes with radon can be made safe through mitigation systems, such as active soil depressurization. Testing for radon regularly and addressing high levels helps ensure a safe living environment.</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>

Q: What types of radon mitigation systems are available?

• <div><p>Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.</p></div>

Q: How long can you go without a radon fan?

• <div><p>Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.</p></div>

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

*The Angi rating for Radon Detection And Reduction companies in Sullivan, 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 Sullivan, 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 September 11, 2026

Reviewed in September 2026
He serviced our HVAC system. House was dormant for about 9 months and for sale. We noticed the system didn?t smell good and wasn?t cooling the house right. So we called him to service our house. He found our duct work to be compromised and pulled out some dead animals. He fixed the ducts...
Froggy's Heating and Air, LLC
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Reviewed in June 2026
Customer service was exceptionable and a pleasant experience. We had tree damage that cut our ComEd power (3PM). After ComEd cut tree limbs we were told the Weather Head had to be replaced before power was restored. We searched Angi & contacted MD (4AM) they texted within minutes and asked...
MD ELECTRICAL CONSTRUCTION SERVICES INC.
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Reviewed in May 2026
Ae had a fence put in. It looks fantastic and was installed in one day.
Midtown Home Improvements, Inc. (St. Louis)
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Reviewed in March 2026
Trapper Joe could have came to my house and do what he said he would probably do and charge me way more but instead he listened to what I thought was a bird and he said no it is more than likely electrical and it turned out to be an old carbon monoxide alarm with really old batteries in it. ...
Trapper Joe's Nuisance Wildlife Control
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Reviewed in March 2026
Terrell, Brian, Dennis, and Jarvis moved me last week and did an awesome job! I appreciate their quick work. They made moving a good experience and I will definitely use them again !
ABC Quality Moving & Storage
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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 July 2025
Lee Electric did an awesome job for us. He came and did what we asked, fixed all the outlets we needed replaced and offered suggestions but in no way tried to push anything extra on us. He was quick and professional and did an excellent job! I have elderly parents and he was very kind and...
Lee Electric
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Reviewed in April 2025
Our roof lost shingles during the recent storms which resulted in a leak. I found Mathis through Angi and I’m so glad I did. The guys came out on a Sunday to replace the shingles. They were super polite and professional and did a great job. I will definitely use their services again when...
MATHIS SIDING AND EXTERIOR FINISH 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 June 2023
Zach did a great job on our lawn. He cut, trimmed and blew the clippings so it looked very nice. He was on time and did this on one of the hottest days. I would recommend him for your lawn care.
Edelen's Clean Cut Services
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Find Radon detection and reduction specialists in Sullivan

ATM Home Inspection, LLC

4.8(

)

Radon Gas - Testing

Serving Sullivan, MO and surrounding areas

Approved

In business since 2011

Free estimates

Credit card accepted

"Rob does a great job: very thorough, very informative."

Response time50 mins

Response rate89%

Recommended by97%of homeowners

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Metro Radon Control of St. Louis, LLC

4.9(

171

)

Radon Gas - Abatement

Serving Sullivan, 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 Sullivan, 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 Sullivan, MO and surrounding areas

In business since 2023

Free estimates

Small jobs welcome

"I used Scope Environmental recently to test floor tile and the underlying mastic to determine if either contained asbestos. I selected Scope because Jeff was very responsive, professional, independent of the abatement companies and his price was competitive. Jeff suggested testing both the tiles and mastic. The tiles tested positive for asbestos but the mastic contained no asbestos. As a result, I saved considerable expense by abating the tiles only and not the mastic so I also used Scope again for the post abatement air testing rather than the abatement company. I would hire Scope again for material and air testing for asbestos, mold or any other potentially toxic materials."

+10

Response time4 hrs

Response rate96%

Recommended by73%of homeowners

Serving Sullivan, 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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Armistead Contracting

3.5(

)

Radon Gas - Testing

Serving Sullivan, MO and surrounding areas

In business since 2016

Free estimates

Credit card accepted

"Very professional, clean and neat"

Response time2 days

Recommended by71%of homeowners

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Radon Detection and Reduction questions, answered by experts

Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home’s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.

Ideally, no one will live in a house with elevated radon levels, as prolonged exposure increases the risk of serious health issues like lung cancer. However, homes with radon can be made safe through mitigation systems, such as active soil depressurization. Testing for radon regularly and addressing high levels helps ensure a safe living environment.

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.

Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

The Sullivan, 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
•
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.
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
•
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 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.
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.