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Q: What would cause radon in a house?

• <div><p>The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.</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>

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: Is radon a serious problem?

• <div><p>Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).</p></div>

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>

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

*The Angi rating for Radon Detection And Reduction companies in Farmington, 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 Farmington, 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 March 25, 2026

Reviewed in March 2026
I wasn't for sure exactly what I wanted and Called and talked to Dave. He showed me samples and colors I could choose from. He did an excellent job and was very professional in all he did. Him and his crew was wonderful. I love my new roof and get so many compliments on it. If you're looking for...
MD Sebastian Construction
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Reviewed in January 2026
Landen was very professional and helped navigate us through a leak in our system. He explained throughly what he was doing and how he was going to fix it. I would definitely recommend Reeder Heating and Cooling to anyone
Reeder Heating and Cooling LLC
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Reviewed in November 2025
I had a great experience with Premier Junk Removal! They helped clear out a room for me, and the whole process was quick, easy, and stress-free. The team was professional, punctual, and respectful of my home. They worked efficiently and made sure everything was taken care of just the way I...
Premier Junk Removal & Demo LLC
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Reviewed in May 2025
The job was done correctly and efficiently. Great customer service and personable. High recommend.
AQUATEK POWERWASH LLC
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Reviewed in January 2025
Highly satisfied with the entire experience! Went above and beyond any expectations. Definitely recommend and extremely happy with the results!
Plastered Renovations
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Reviewed in September 2024
They did a wonderful job! They took down 2 very large trees in our front yard and ground the stump. The price was great and the service was even better. They came out to give us an estimate quickly, got the job done when they said it was going to be done and the whole experience was very...
R & B Tree Service & Landscaping, LLC
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Reviewed in May 2023
They were fast and efficient and cleaned up the area when they were done.
Tree Master
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Reviewed in May 2023
They worked quickly and carefully. They got everything done that we asked them to do. Very pleased, and I will recommend to anyone.
Honey-Do Man Handyman, LLC.
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Reviewed in May 2023
Project: To analyze the structure of a building and it's foundation after a fire. The basement sat for 17 weeks with 3 to 4 ft. of water in it. Insurance insisted on a rebuild even though county condemned the building. Mr. Bollinger was professional and knowledgeable and pointed out many...
Scapular Engineering Firm
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Reviewed in February 2022
Mr. Yoder was very professional and explained everything that he was going to do. His work was very diligent and did touch ups where needed. He even checked the flashing around the chimney. He sanded my floors and added polyurethane finish on them. He added and exhaust fan in my bathroom and...
Yoder Painting LLC
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Find Radon detection and reduction specialists in Farmington

Metro Radon Control of St. Louis, LLC

4.9(

171

)

Radon Gas - Abatement

Serving Farmington, 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 Farmington, MO and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"I would definitely recommend this company to anyone!!! I hired them and the job was done nicely, Dan O'Brien was the technician who took care of the project and he did an excellent job, he answered all of my questions and explained to me everything related to Radon gas. When he finished setting everything up and the job was completed all the working area looked super clean and the installation looks just like it is part of the house and that has been there forever. This is what I call a Perfect and Complete execution of a Radon gas mitigation project."

Recommended by97%of homeowners

Serving Farmington, MO and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"Ken did a great job of protecting the area from drywall dust by hanging plastic sheeting and using negative pressure vacuum system. Ken was very accommodating and helped advise on the best approach. Price was reasonable for the work performed but a bit higher than the original rough estimate. I would look for a formal estimate and contract for the next phase of work and expect to higher K&E Demo again."

+43

Recommended by87%of homeowners

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Municipal Environmental Services

New to Angi

Radon Gas - Testing

Serving Farmington, MO and surrounding areas

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!

7 neighbors recently requested a quote

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Radon Detection and Reduction questions, answered by experts

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

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.

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.

Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).

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

The Farmington, 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.
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.