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*The Angi rating for Radon Detection And Reduction companies in Oak Harbor, 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.

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Last update on July 20, 2026

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Avatar for Security First Home Inspections & Remediation
Security First Home Inspections & Remediation
4.8(
9
)
Radon Gas - AbatementRadon Gas - Testing

Serving Oak Harbor, OH and surrounding areas

Free estimates

Credit card accepted

"I just put a brand new roof on my home and i called a security first inspection to come out and make sure it was done properly and he found major issues with the ventilation the roofers put on so it was worth my money to call someone out that did identify problems and i got it straightened out before it caused an issuea,"
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Radon Detection and Reduction questions, answered by experts

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

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.

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.

While DIY testing is possible, abatement generally requires professional installation to ensure efficacy and meet safety standards.

Your radon mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

The Oak Harbor, 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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