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*The Angi rating for Radon Detection And Reduction companies in Bellville, 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 Bellville, 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 October 14, 2025

Find Radon detection and reduction specialists in Bellville

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

Serving Bellville, OH and surrounding areas

In business since 2019

Emergency services offered

Warranties offered

"We had our home checked for Radon since the levels were high in our area. Matt was able to come out and install/test the scavenging system in a very timely manner. He was very professional, and reasonable!"
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 Bellville, 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 rate94%
Recommended by93%of homeowners
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Radon Detection and Reduction questions, answered by experts

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

The fan that pulls the radon out of the air needs to run continuously, so you may see an increase in your electric bill once you install the mitigation system. Additionally, you may see an increase in your heating or cooling bills, as the fan can cause some loss of hot or cool air.

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.

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

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

The Bellville, 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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