Top-rated radon detection and reduction specialists.

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Q: What would cause radon in a house?

• <div><p>The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.</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>

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 often should you replace a radon fan?

• <div><p>Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.</p></div>

Q: What types of radon mitigation systems are available?

• <div><p>Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.</p></div>

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

*The Angi rating for Radon Detection And Reduction companies in Bethesda, 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 Bethesda, 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 08, 2025

Reviewed in November 2025
They did everything I requested and were very professional installing new outlets, replacing 8 smoke detectors and installing Lutron switches for my home automation
Lightning Electric
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Reviewed in November 2025
The company was great to deal with and they were even willing to deliver the metal from over 5 hours away. They kept great communication throughout the process and from start to finish, talking/singing a contract to completion of roof, was quick and easy. Everything was done within a few weeks...
Perfection Metal Roofing, Inc.
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Reviewed in March 2025
Scot Lucas and his team are very professional and highly skilled. They cut down huge maple trees and ground the stumps. They did a great job and cleaned all debris from the site. This is the second time I have hired them and highly recommend.
Lucas Tree Service, LLC
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Reviewed in May 2024
Chris did a great job on my radon mitigation. He was a pleasure to work with! Glad I choose to have my project contracted with Windland.
Winland Industries LLC
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Reviewed in May 2024
Choosing Absolute Metal Roofing Plus for my new metal roof was an outstanding decision. Their team's promptness and professionalism shown through, delivering courteous service and exceptional workmanship. The value was unparalleled, offering top quality results without straining the budget. I...
Absolute Metal Roofing Plus LLC
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Reviewed in July 2023
They were prompt and skilled in the cutting and removal of trees.
Fire Walker LLC
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Reviewed in April 2023
He made sure everything was cleaned up and even did a little extra. Very prideful of his work. Asked him for quote on 4 more trees and he was quick to get back with very reasonable price. Currently cutting them down and doing excellent job.
Klies Boys Construction LLC
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Reviewed in November 2022
I found Tom and his helper to be very professional, helpful and courteous, and did a great job mending my fence. Good as new!
Tom & Amy construction LLC
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Reviewed in September 2022
The project went well and the ramp turned out prefect. It has helped out a lot. Project was done in roughly 3 days. His company is reliable, flexible and hard working.
3E Services LLC
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Reviewed in February 2022
B&T Home Improvement was able to fit our 3-day project into their schedule within one week. They showed up on time and worked the entire day -- unlike some companies that work a 6-hour day. The project was completed as agreed upon. Their suggestions for improvement were spot on. The...
B&T Home Improvements
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Find Radon detection and reduction specialists in Bethesda

Winland Industries LLC

5.0(

)

Radon Gas - AbatementRadon Gas - Testing

Serving Bethesda, OH and surrounding areas

In business since 2023

Free estimates

Credit card accepted

"Chris did a great job on my radon mitigation. He was a pleasure to work with! Glad I choose to have my project contracted with Windland."

Response time11 hrs

Response rate97%

Recommended by100%of homeowners

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Erock Property Inspections

New to Angi

Radon Gas - Testing

Serving Bethesda, 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 questions, answered by experts

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

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

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.

Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.

Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.

The Bethesda, 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
•
Sep 28, 2026Sep 28, 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
•
Sep 23, 2026Sep 23, 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
•
Jul 9, 2026Jul 9, 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
•
Jul 9, 2026Jul 9, 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
•
Jul 9, 2026Jul 9, 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.