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Verified Reviews for Radon Detection And Reduction pros in Walnut Creek, OH

*The Angi rating for Radon Detection And Reduction companies in Walnut Creek, 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 Walnut Creek, 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 18, 2026

Top-Rated Radon detection and reduction specialists in Walnut Creek - Updated Nov 2026

Avatar for Stoll Radon Installation llc
Stoll Radon Installation llc
5.0(
63
)
Radon Gas - AbatementRadon Gas - Testing

Serving Walnut Creek, OH and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Warranties offered

"Tim was quick to respond to my Anji request and came out within a couple days to set up the radon testing equipment. He was knowledgeable, communicated very well, and returned promptly to read the test and explain the results. I was very pleased with this radon pro. I would highly recommend him."
Response time5 hrs
Response rate99%
19 neighbors recently requested a quote
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Avatar for Down Home Inspections, LLC
Down Home Inspections, LLC
5.0(
15
)
Radon Gas - Testing

Serving Walnut Creek, OH and surrounding areas

Approved

In business since 1990

Free estimates

Credit card accepted

"Russ was awesome and so pleasant to work with. I didn't really understand Radon at the time so he took his time to explain it in detail. I highly recommend his services for radon testing!"
Main Breaker panel
Live wire
Exposed wiring
Corroded piping
Electrical tape repair failed

+5

Response time3 hrs
Recommended by100%of homeowners
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Avatar for Safe & Secure Home Inspections - Pgina inicial Facebook
Safe & Secure Home Inspections - Pgina inicial Facebook
4.8(
19
)
Radon Gas - Testing

Serving Walnut Creek, OH and surrounding areas

In business since 2014

Free estimates

Credit card accepted

"Very reasonably priced, professional, thorough and responsive. All we needed was a radon inspection, but I wouldn't hesitate to hire Bill again should a need arise -- and I highly recommend him."
Safety Hazard!
Mold Growth
Broken Foundation
Roof and Chimney Inspection
Missing Flashing and Gutter

+2

Response time50 mins
Response rate92%
Recommended by94%of homeowners
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Vapor Removal
New to Angi
Radon Gas - AbatementRadon Gas - Testing

Serving Walnut Creek, OH and surrounding areas

In business since 1993

Our leadership envisioned a better way to mitigate vapor intrusion: To mitigate vapors with newer technology that is cost effective, timely, provides instant results and is more energy efficient than any other product available. They saw a way to breathe life back into buildings plagued by soil vapor intrusion and to repurpose these buildings to better serve the communities they inhabit.

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Erock Property Inspections
New to Angi
Radon Gas - Testing

Serving Walnut Creek, OH and surrounding areas

In business since 2024

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers' needs. It is our mission to provide excellent workmanship, and complete customer satisfaction from start to completion of a project. In order to understand the needs, and expectations of our customers, we take great care to work, and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

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Radon Detection and Reduction FAQs, answered by experts

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. 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 action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

If your home has a sump pit, you can integrate it with a radon mitigation system. You can accomplish this by sealing the pump cover with an airtight lid that accommodates radon vent pipes and sump pump hoses. This allows the vent pipe to redirect the radon gas outside of your home.

No, radon mitigation systems do not decrease home value or make a home harder to sell. In areas where homes experience similar radon exposure risks, a radon mitigation system is viewed as an improvement. Potential homebuyers often opt to buy a home with a radon mitigation system already installed to reduce the risk of cancer for their families.

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.

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 Walnut Creek, OH homeowners’ guide to radon detection and reduction services

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