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

*The Angi rating for Radon Detection And Reduction companies in Fredericktown, 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 Fredericktown, 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 July 30, 2026

Find Radon detection and reduction specialists in Fredericktown

Avatar for Black River Radon, LLC
Black River Radon, LLC
5.0(
22
)
Radon Gas - Abatement

Serving Fredericktown, OH and surrounding areas

In business since 2019

Emergency services offered

Warranties offered

"Matt did a great job of installing my radon mitigation system. The unit is set up perfectly and looks very professional and the jobsite was cleaned up to how it was before he started the job. I would highly recommend Matt and Black River Radon for all of your radon mitigation needs."
Company Logo
Company Logo
Radon Specialist
Owner
Black River Radon LLC

+11

Response time5 hrs
Recommended by95%of homeowners
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Avatar for Radon Systems
Radon Systems
4.8(
29
)
Radon Gas - AbatementRadon Gas - Testing

Serving Fredericktown, OH and surrounding areas

In business since 1977

Free estimates

Warranties offered

"I used Radon Systems over 20 years ago in another house and even still today they provide great service for a radon mitigation system."
External Mitigation System
Sump Suction System
Encapsulate Crawl
Encapsulate Crawl
Vapor Barrier Installed In Crawl

+9

Response time8 hrs
Response rate95%
Recommended by93%of homeowners
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Avatar for Rescue Environmental
Rescue Environmental
4.9(
19
)
Radon Gas - AbatementRadon Gas - Testing

Serving Fredericktown, OH and surrounding areas

In business since 2009

Emergency services offered

"The guys were absolutely amazing!! Very courtrous, quick, and cleanly. Just a spectacular service and crew all around!! Thank you guys so very much!!"
Remodeling - General Project
Remodeling - General Project
Remodeling - General Project
Additional Photos
Additional Photos

+4

Recommended by100%of homeowners
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Mid Ohio Radon Experts
New to Angi
Radon Gas - AbatementRadon Gas - Testing

Serving Fredericktown, 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

You can vent radon out of your house sometimes by simply opening a window, but it won’t remove the source, and will likely rise above recommended levels quickly. A professional will be needed to assess your home, and determine the best strategy for radon removal. Active radon sump pumps and soil depressurization systems are often used to forcefully vent the radon from your home.

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

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

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

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.

The Fredericktown, 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.

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