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*The Angi rating for Radon Detection And Reduction companies in Grand River, 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 Grand River, 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 May 03, 2026

Find Radon detection and reduction specialists in Grand River

Avatar for Harner Radon Relief
Harner Radon Relief
4.9(
6
)
Radon Gas - AbatementRadon Gas - Testing

Serving Grand River, OH and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"Very impressed with Evan, the owner. He was very prompt and did an excellent job"
Response time2 days
Response rate87%
3 neighbors recently requested a quote
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CPF Home Inspections, LLC
5.0(
24
)
Radon Gas - Testing

Serving Grand River, OH and surrounding areas

In business since 2015

Free estimates

Credit card accepted

"Chris came out and did a thorough job with the inspection of my new home. He explained everything he was testing/ inspecting. He answered any questions I had throughout the inspection. He was not afraid to go on top of the roof or crawl in the tiny areas of the crawl space! He's friendly and professional. I would hire him again on the next house!"
Response time20 mins
Response rate86%
Recommended by95%of homeowners
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Avatar for Lion Guard Home Inspections Inc.
Lion Guard Home Inspections Inc.
5.0(
4
)
Radon Gas - AbatementRadon Gas - Testing

Serving Grand River, OH and surrounding areas

In business since 2017

Free estimates

Credit card accepted

"It was very good! Everything was explained to me and he was very thorough. He was very easy to work with and prompt in getting back with me when I inquired about the inspection. He came out to do the inspection just 2 days after my calling him."
Recommended by100%of homeowners
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Radon Detection and Reduction questions, answered by experts

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.

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 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.

Yes, many systems include warranties for performance. Confirm terms with your installer.

There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.

The Grand River, 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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