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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 Rescue Environmental
Rescue Environmental
4.9(
19
)
Radon Gas - AbatementRadon Gas - Testing

Serving Wilmington, OH and surrounding areas

In business since 2009

Emergency services offered

"Phil was very professional and let me know what was going on, as I don’t live at the home he was working on. I would hire him again if needed."
Remodeling - General Project
Remodeling - General Project
Remodeling - General Project
Additional Photos
Additional Photos

+4

Recommended by100%of homeowners
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Avatar for The Ohio Home Inspections Co
The Ohio Home Inspections Co
4.0(
7
)
Radon Gas - AbatementRadon Gas - Testing

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."
Additional Photos
Additional Photos
Recommended by71%of homeowners
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HomeTeam Inspection Service
3.4(
9
)
Radon Gas - Testing

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

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.

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

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.

Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home’s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

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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