Top-rated radon detection and reduction specialists.

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Q: How long does radon mitigation take?

• <div><p>Installation typically takes 1-2 days, depending on the system and property layout.</p></div>

Q: What is the biggest source of radon?

• <div><p>The soil beneath your house is most likely what&rsquo;s causing an increased level of radon. This is because soil holds radioactivity for a long time and it&rsquo;s also what most buildings are built on. Another common source of radon is water from a source that hasn&rsquo;t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.</p></div>

Q: Why is radon gas abatement necessary for homes?

• <div><p>Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.</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: 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 Sheldon, SC

*The Angi rating for Radon Detection And Reduction companies in Sheldon, SC 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 Sheldon, SC 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 05, 2026

Reviewed in August 2026
I told them exactly what I wanted and when and they did it exactly how I wanted it. Mowed my lawn as well as edge and trimmed it and then re-stoned my bush bedding. Excellent work. Best part was once we agreed to when the work was going to be done, they did it exactly when they said and no need...
Lawn Luxe Design
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Reviewed in May 2026
Mock Electric did a great job and all in one complete work 8AM-4PM. Jeff and Josh were very professional, informative and easily approachable. The new electric installation went great and exactly how I wanted and requested. Hats off! Great Job and thanks!
Mock Electric, Inc.
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Reviewed in November 2025
He did a thorough job of getting the leaves off the roof and eaves troughs and also cleaned the area where the leave came down and put into a pile. He took pictures and showed the after reveal. I recommend this Pro!
MGL Construction
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Reviewed in October 2024
Jason was very helpful to provide the best pricing and product available. He is knowledgeable and was patient sort out what unit I wanted and needed.
Dyess Heating & Air Conditioning, Inc.
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Reviewed in May 2024
They trimmed and skinned my palm trees at my business, cleaned up the side, bedding around an outdoor patio and installed new pine straw. Hard-working, dependable, professional, and respectful. Highly recommend.
Cowen Creek Landscaping
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Reviewed in April 2024
Highly recommended to use Kantor cleaning. Our previous house cleaner is incomparable to the service we now get with Kantor cleaning. Bela really goes above and beyond, extremely kind, and always on time or early. Being a full time mom and working full time, I cannot imagine not having Belas...
Kantor Cleaning LLC
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Reviewed in March 2024
The tech Filipe did a great job replacing 3 sprinkler heads and adjusted the rest of the system heads to spray in the grass and not the driveway or the street. Great job!
Greenwork Landscapes, LLC
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Reviewed in December 2023
Hank and HLH removed my old driveway and replaced it, also resloped portions to address rain runoff concerns. Timely, responsive, and professional. I have recommended Hank and HLH to friends.
HLH Company LLC
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Reviewed in July 2023
He was very thorough with his diagnostic find. He was prompt and arrived to start the job and finished when he said he would. I would highly recommend Neighbors Heating &Air
Neighbors Heating & Air
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Reviewed in April 2023
Great company and people. Showed up quick and respected the property. I would definitely hire this company again for any stump grinding service I would need. If you are looking stop and hire these guys now.
Freedom Stump Grinding
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Find Radon detection and reduction specialists in Sheldon

SWAT Environmental, Inc.

4.8(

)

Radon Gas - Abatement

Serving Sheldon, SC and surrounding areas

In business since 2002

Free estimates

Credit card accepted

"Had them come out to install a Radon Mitigation Fan. Service was fast and the installer was extremely knowledgable. He was in an out within an hour and the radon dropped from a 4 to a 0.59! Extremely happy with the result. Price wasn't cheap by any means but definitely fixed our problem."

Recommended by100%of homeowners

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Summit Engineering, Laboratory & Testing, P.C

4.0(

)

Radon Gas - Testing

Serving Sheldon, SC and surrounding areas

In business since 2003

Emergency services offered

Credit card accepted

"Did what they said they would, very knowledgeable and great job over all"

Response time1 day

Response rate90%

Recommended by100%of homeowners

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Cube Home & Commercial Inspections & Appraisal Svs

5.0(

)

Radon Gas - AbatementRadon Gas - Testing

Serving Sheldon, SC and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"The inspection was complete and informative.... Issues we discoved I was able to settle with the seller before I completed the puchase."

Recommended by100%of homeowners

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Coastal Empire Roofing & Construction Co

3.1(

)

Radon Gas - AbatementRadon Gas - Testing

Serving Sheldon, SC and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"Once they started working on it, the work was great. What they did was good, but they forgot to put caulking on one of our skylights. They came back quickly to fix it. We put half the money down and then we didn’t hear anything for 4 months. I guess they were switching company owners, but since then it has been good."

Recommended by80%of homeowners

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Radon Detection and Reduction questions, answered by experts

Installation typically takes 1-2 days, depending on the system and property layout.

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.

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.

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 Sheldon, SC 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
•
Aug 3, 2026Aug 3, 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.