Top-rated radon detection and reduction specialists.

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

Q: How long can you go without a radon fan?

• <div><p>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.</p></div>

Q: How do I test for radon gas?

• <div><p>Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.</p></div>

Q: Why is my radon mitigation system so loud?

• <div><p>Your radon mitigation system may be loud because it&rsquo;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.</p></div>

Q: What steps should be taken if high radon levels are detected?

• <div><p>If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.</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(

)

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

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(

)

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

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Medallion Home Inspections

4.9(

)

Serving Ontario, OH and surrounding areas

In business since 2009

Free estimates

Credit card accepted

"Very thorough and reasonably priced."

Response time8 hrs

Response rate91%

Recommended by100%of homeowners

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Radon Detection and Reduction questions, answered by experts

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.

Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.

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.

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

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

The Ontario, 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.

See all articles

Mitchell Grant
•
Mar 18, 2026Mar 18, 2026
How Much Does a Radon Mitigation System Cost? [2026 Data]
The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
Alison Kasch
•
Apr 6, 2026Apr 6, 2026
How Much Does Radon Remediation Cost? [2026 Data]
Get clear answers on how much radon remediation costs, including average prices, key cost factors, and tips to save money on your home’s radon mitigation.
Angi
•
Mar 18, 2026Mar 18, 2026
How Much Does Radon Testing Cost? [2026 Data]
Find out what impacts radon testing costs, including average prices for DIY kits and professional services, so you can protect your home and budget confidently.
Amy Freeman
•
Apr 5, 2026Apr 5, 2026
Who Installs Radon Mitigation Systems?
Radon is a gas that you can't see or smell and is harmful to your health. If your home has radon, you need to know who installs radon mitigation systems.
Jacqueline DeMarco
•
May 2, 2026May 2, 2026
What Is Radon and How Does It Get In Your Home?
What is radon gas? Find out what this radioactive gas is, why it is dangerous, how it gets in your home, and how to mitigate it.
Jacqueline DeMarco
•
Apr 10, 2026Apr 10, 2026
What Is Radon Testing?
What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.