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*The Angi rating for Radon Detection And Reduction companies in Wilmington, 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 Wilmington, 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 November 14, 2025

Find Radon detection and reduction specialists in Wilmington

Avatar for The Ohio Home Inspections Co
The Ohio Home Inspections Co
4.0(
7
)

Serving Wilmington, OH and surrounding areas

In business since 2003

Free estimates

Credit card accepted

"I think they did a thorough job, however a small issue with the flashing was missed. It had been caulked which allowed water to seep through the brick. All in all, I had a good experience."
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Recommended by71%of homeowners
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HomeTeam Inspection Service
3.4(
9
)

Serving Wilmington, OH and surrounding areas

In business since 1972

Free estimates

Credit card accepted

"John was very eager to work around my schedule. Although my husband and I arrived a little late for our scheduled time, he and his team of pros were already hard at work. He was very helpful and courteous. Because the seller had not left the garage unlocked the day of the inspection, John went back out on his own time a few days later to inspect the garage. He went above and beyond and I would definately recommend him to friends. Thanks!"
Recommended by85%of homeowners
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Radon Detection and Reduction questions, answered by experts

No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. 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 preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.

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

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.

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.

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

The Wilmington, 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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