How do you prevent radon in your home?

• <div><p>Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. </p><p>Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.</p></div>

Is radon mitigation worth it?

• <div><p>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.</p></div>

Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Ontario, OH

Q: What is considered a safe or dangerous level of radon?

• <div><p>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.</p></div>

Q: What is the biggest source of radon?

• <div><p>The soil beneath your house is most likely what&rsquo;s causing an increased level of radon. This is because soil holds radioactivity for a long time and it&rsquo;s also what most buildings are built on. Another common source of radon is water from a source that hasn&rsquo;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.</p></div>

Q: How long does radon mitigation take?

• <div><p>Installation typically takes 1-2 days, depending on the system and property layout.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Ontario, OH

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

Reviewed in August 2025
Levi was very clear on what my problem was and had all the parts needed ,fixed it and water was restored.
Jackson Well Services
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Reviewed in November 2024
I highly recommend this company. They removed 2 trees from my senior father's yard and he's a hard person to deal with. The owner was very understanding and compassionate and worked with my father where any other company would have walked away. I greatly appreciated the on going communication as...
KBR Evergreen Arbor
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Reviewed in May 2024
The owner returned my call the same day I left a message, gave me an estimate the next day, and scheduled the project. He trimmed bushes, weeded, edged, and mulched. He was very professional and personable. Very happy with the outcome and cost. Would definitely use again and recommend to others.
Titan Lawn Maintenance, LLC
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Reviewed in August 2023
Advantage Tree Care did an excellent job removing several trees that were in the field behind our house whose root system was encroaching on our leech field. The job was done quickly and efficiently and there was no mess left behind. He listened to our needs and made sure he got the job done....
Advantage Tree Care LLC
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Reviewed in March 2023
I had a dead tree that needed removed. And a maple that was in desperate need of a trimming. It was done pretty quick and at a surprisingly affordable cost. The stump was ground out and I couldnâ t even tell they were there with how neat the clean up was. 12/10
Jedd's Tree Service
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Reviewed in January 2023
A-1 did a great job on my fireplace and I was satisfied and recommend this company.
A-1 Evans Chimney Service
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Reviewed in May 2022
We hired them to take down six trees and trim three others. They showed up on the agreed date and completed the work in a timely manner. They ground the stumps and cleaned up debris. I would highly recommend them to anyone who would like trees removed or trimmed.
E.X.T. Eagle's Tree Maintenance
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Reviewed in April 2022
Tested the water which showed rust, cholorine, hardness, and other impurities. Installation was quick and clean.
Clearwater Systems
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Reviewed in November 2021
Called me same day and came out within 20 minutes. Offered me an exceptional rate to do remove 2 large trees and take the wood away right then. Was done within 2 hours and cleaned up afterwards. Very great service.
Productive Tree and Mulch, LLC
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Reviewed in November 2021
The tech, Chandrus was kind and helpful!
Mr. Appliance of North Central Ohio
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Find Radon detection and reduction specialists in Ontario

Black River Radon, LLC

5.0(

)

Radon Gas - Abatement

Serving Ontario, OH and surrounding areas

In business since 2019

Emergency services offered

Warranties offered

"Matt did a great job of installing my radon mitigation system. The unit is set up perfectly and looks very professional and the jobsite was cleaned up to how it was before he started the job. I would highly recommend Matt and Black River Radon for all of your radon mitigation needs."

+11

Response time5 hrs

Recommended by95%of homeowners

Radon Gas - AbatementRadon Gas - Testing

Serving Ontario, OH and surrounding areas

In business since 1977

Free estimates

Warranties offered

"I used Radon Systems over 20 years ago in another house and even still today they provide great service for a radon mitigation system."

Response time8 hrs

Response rate95%

Recommended by93%of homeowners

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Genesis Radon NEO LLC

4.9(

)

Radon Gas - AbatementRadon Gas - Testing

Serving Ontario, OH and surrounding areas

In business since 2018

Free estimates

Warranties offered

"Type of service was radon gas abatement"

Response time3 hrs

Recommended by88%of homeowners

Request Quote

Medallion Home Inspections

4.9(

)

Radon Gas - Testing

Serving Ontario, OH and surrounding areas

In business since 2009

Free estimates

Credit card accepted

"Very detailed work. I received more info than I anticipated, and he was timely, quick communication, and worked with my son to coordinate timing for the inspection. I had the detailed report the next morning after the inspection! Great timing."

Response time8 hrs

Response rate91%

Recommended by100%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.

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter.

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

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.

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

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.

The Ontario, OH homeowners’ guide to radon detection and reduction services

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