Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Londonderry, OH

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: What if radon is still high after mitigation?

• <div><p>You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.</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: 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: What are the health risks associated with radon exposure in homes?

• <div><p>Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Londonderry, OH

*The Angi rating for Radon Detection And Reduction companies in Londonderry, OH 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 Londonderry, OH 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 April 17, 2026

Reviewed in April 2026
Devin is a very nice professional and very good at explaining what was wrong the other company said it was gonna cost ,2500 and suggested I get a new one...Devin diagnosed the problem and it cost us only ,800 I would recommend this man for your air conditioner to be fixed.....also I found out he...
Hope Heating And Faith Freezing
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Reviewed in November 2025
Best Choice Roofing did a full replacement of our garage roof. It was done quickly and efficiently. We are very happy with the service and communication provided throughout the process.
Best Choice Roofing - Columbus, OH
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Reviewed in April 2025
I couldn’t be happier with the radon mitigation system installation. The system was installed quickly and is running smoothly, my radon levels dropped significantly right away. It’s such a relief knowing my home is now safer. Highly recommend this company for anyone needing radon services!
Beatty Home Inspections LLC
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Reviewed in September 2023
Very well. And I am happy with results.
Queens Painter Pro Plus
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Reviewed in June 2023
Matt did a great job installing I have 2 acres and it was completely installed in less than 4 hours explained the system and helped me train the dogs the first day. I'm totally happy! The dogs may not be but I know their safe and have that peace of mind. Thanks Matt and Pet Safe!
DogSafe Underground Fences
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Reviewed in May 2023
Appalachian Stump Grinding goes above and beyond to ensure complete customer satisfaction. Very professional. I would recommend this company hands down! They are on time and get the job done. Top notch company, had me look and see if the project was complete and up to my satisfaction before...
Appalachian Stump Grinding LLC
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Reviewed in May 2023
Pro Tree Service is very professional, they do the work very quickly and they are very personable. I would recommend their work very highly. They have done both tree and stump removal for me and my husband. You canâ t go wrong with Pro Tree Service
Pro Tree Service
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Reviewed in April 2023
Make me an offer I canâ t refuse to do my whole house and gutter and downspouts and facia â ¦. Iâ ll keep the sign in my yard a week or two .
All American Power Cleaning, LLC
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Reviewed in January 2023
Derek is very personable and fair
Barton Masonry
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Reviewed in October 2021
Fantastic lawn care and great service! We were new to the area and looking for a new lawn service. Raber was the second company we called. Raber picked up the first time we called and came to give us a quote the same day. He even got us scheduled for our first service within the week! They are...
Raber Lawn Care
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Find Radon detection and reduction specialists in Londonderry

Ohio Radon Services, LLC

4.8(

)

Radon Gas - TestingRadon Gas - Abatement

Serving Londonderry, OH and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Had a radon system installed are leaves were in the 20s and the installation they are down to .4 thank you again Ã°Â Â Â"

Before and after crawlspace encapsulation

Response time1 day

1 neighbors recently requested a quote

Recommended by100%of homeowners

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Beatty Home Inspections LLC

5.0(

)

Radon Gas - AbatementRadon Gas - Testing

Serving Londonderry, OH and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Chris was very prompt and professional. He did the testing and then completed the mitigation that needed done. I would highly recommend him for radon testing and midigation services."

+16

Response time2 hrs

Response rate100%

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Tri-State Smart Home Solutions, LLC

4.9(

)

Radon Gas - Testing

Serving Londonderry, OH and surrounding areas

In business since 2018

Credit card accepted

"Chris came when he promised, he did a thorough inspection and I had the report within 2 hours. He was excellent. I highly recommend this man for your home inspection."

+10

Response time8 hrs

Recommended by97%of homeowners

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Mid Ohio Radon Experts

New to Angi

Radon Gas - AbatementRadon Gas - Testing

Serving Londonderry, OH and surrounding areas

In business since 2022

Free estimates

Offers commercial services

Mid Ohio Radon Experts LLC is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

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Radon Detection and Reduction questions, answered by experts

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.

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

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.

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

Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.

The Londonderry, OH 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.