Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Marinette, WI

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>

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: How much does it cost to replace a radon fan?

• <div><p>The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.</p></div>

Q: How does radon enter my home?

• <div><p>Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.</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>

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Verified Reviews for Radon Detection And Reduction pros in Marinette, WI

*The Angi rating for Radon Detection And Reduction companies in Marinette, WI 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 Marinette, WI 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 22, 2025

Reviewed in May 2025
Matt was extremely thorough on the home inspection I hired him to do. I’m fairly well versed in construction and I do remodeling along with real estate investments that I rehab or rent and do my own repairs and maintenance and Matt was able to find things I overlooked and or did not notice so I...
Badger Home Inspections, LLC
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Reviewed in August 2024
Devon was skilled and professional in every way, he found and fixed the clog in our system flawlessly!!
Badger Drains LLC
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Reviewed in April 2024
If you need a roofing job done right away and done well, hire L.I.C. General Roofing Solutions. We had an old garage roof that badly needed replacing and I sent a request for quote through Angi. They responded and called me that evening! The next day he visited the property and gave us quote,...
L.I.C General Roofing Solutions LLC
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Reviewed in February 2024
JC Painting and Maintenance did an awesome job recently painting my living room and kitchen. The quality of work is exceptional and they were very professional throughout the process.
JC Painting and Maintenance
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Reviewed in January 2024
They are very efficient and get the job done fast. Picked up all the brush and ground it with no mess anywhere in the yard. They are very good at what they do.
B&B Stump Grinding and Tree Service, LLC
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Reviewed in October 2022
The staff is very professional and always on time. They always communicate with you on what is being done and recommendations for future projects. Works well with animals and respectful of property.
Big Foot Landscaping
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Reviewed in August 2022
As a local Realtor I recognize how difficult it can be to find exceptional services. Rodrigo and his crew showed up on time and provided exceptional service at a great price. My expectations were not only met but they were exceeded. I would highly recommend Rodrigo and his crew for any home...
Streamlinepros
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Reviewed in July 2022
Very nice friendly workers and office staff they came when they told me and kept me informed of the project each day and I will give them more work in the future. they hi preserve washed and painted my home and out buildings Good people doing great work in NE Wisconsin and the UP
Northern Pro Painting
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Reviewed in April 2022
The sales representative was very informative with the product and explained the procedures well. The installation was also very professional and they cleaned everything up.
LeafFilter Gutter Protection
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Reviewed in November 2021
Scott Fisher and his team are exceptional! They went the extra mile in helping me remediate a home that was in poor condition. They were informative and positively engaged and were communicating with me regularly on our progress. I would highly recommend SGS to anyone who needs help in the...
SGS Environmental and CERI
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Find Radon detection and reduction specialists in Marinette

Fox Valley Radon LLC

4.9(

)

Serving Marinette, WI and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Warranties offered

Small jobs welcome

"Mike did an awesome job. Very professional very personable. I applaud him as a professional and yes I would use him again and I would recommend him."

Response time2 days

6 neighbors recently requested a quote

Recommended by85%of homeowners

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JW Rothrock Inc

New to Angi

Serving Marinette, WI and surrounding areas

In business since 1994

For lead testing and other specialty services JW Rothrock Inc. is Wisconsin's premier in lead testing as well as abatement. For cost effective and professional service JW Rothrock is by far above and beyond the rest.

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Radon Detection and Reduction questions, answered by experts

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

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.

The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

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.

The Marinette, WI 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
•
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.