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*The Angi rating for Radon Detection And Reduction companies in Spring Valley, 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 Spring Valley, 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 August 26, 2026

Top-Rated Radon detection and reduction specialists in Spring Valley - Updated Nov 2026

Avatar for Ohio Certified Inspections
Ohio Certified Inspections
4.9(
46
)
Radon Gas - Testing

Serving Spring Valley, OH and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Craig was very professional. He followed through on everything he promised and even helped save us money on something we ask him to do. I felt like he was really in the business to help, not just make money. I found his approach refreshing and would recommend him to anyone."
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+39

Response time10 mins
13 neighbors recently requested a quote
Recommended by86%of homeowners
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Avatar for Radon Technology, Inc.
Radon Technology, Inc.
4.6(
32
)
Radon Gas - AbatementRadon Gas - Testing

Serving Spring Valley, OH and surrounding areas

In business since 1993

Free estimates

Warranties offered

"I live in Florida. I hired Radon Technology to install a system in a home that weâ re selling in Ohio. Jourdan answered all my questions via email or over the phone. Radon Technology found a solution when another company claimed, â no way!â Radon Technology warrants the systemâ s performance and that warranty is transferable, which is perfect for me. Did I say that the price they quoted was surprisingly affordable? Had I known that I had had a radon issue, then I would have installed this system sooner."
Exterior Radon System
Response time1 day
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 Spring Valley, OH and surrounding areas

In business since 2003

Free estimates

Credit card accepted

"I was very pleased with Kevin Leonard.  He was very thorough and I was really impressed that he was over detailed versus under detailed.  I appreciated having all that extra information that I wouldn't have expected.  I got him off Angie's List.  His price was very fair."
Additional Photos
Additional Photos
Recommended by71%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

The lifespan of a radon mitigation system depends on the type of system and its maintenance. With proper care, a system can last for many decades. Passive systems tend to last longer as they have fewer components that require replacement. Active systems, which have more moving parts like fans, generally have a shorter lifespan. For instance, water filtration devices and active pressurization systems require more frequent maintenance. While the system as a whole is durable, the radon fan in an active system typically has a lifespan of 5 to 10 years and will need to be replaced. As long as the fan is working, the mitigation system should function correctly.

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.

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

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.

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

The Spring Valley, 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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