Top-rated radon detection and reduction specialists.

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Q: What if radon is still high after mitigation?

• <div><p>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.</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>

Q: Do radon mitigation systems come with warranties?

• <div><p>Yes, many systems include warranties for performance. Confirm terms with your installer.</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>

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

*The Angi rating for Radon Detection And Reduction companies in Niagara, 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 Niagara, 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 November 22, 2024

Reviewed in November 2024
Very pleased with the work ethic displayed and especially their honesty. My siding looks great. IÃ¢Â Â d recommend them to anyone!
MMR Contracting
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Reviewed in October 2024
They are true professionals and handled my belongings with consideration and care. Hire them for a 100% perfect and stress free move.
REAL TIME RELOCATION
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Reviewed in September 2023
These guys really do it all. Nate conveyed the upmost professionalism and did quality work!
Border State Property Solutions, LLC
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Reviewed in May 2023
Israel and his very competent crew did an exceptional roofing job on my home and garage. Their professionalism - from estimate to work done in a timely manner to a fastidious clean-up - was all top notch! I highly recommend LIC General Roofing Solutions of Appleton.
L.I.C General Roofing Solutions LLC
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Reviewed in May 2023
Prompt response to our estimate request and completed our tree removal- and clean up - to beyond our expectations within a week. Very professional, skilled and knowledgeable. Clear communication concerning scheduling.Will not leave until the project is finished to his above average...
RL Handyman Service
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Reviewed in April 2023
Highly recommend Mad City, we had 13 windows installed this Fall and couldn’t have asked for a better experience. Service was excellent, the installer was very professional and explained everything. You will not be disappointed. Job #202119
Mad City Windows & Baths
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Reviewed in August 2022
Mr. Sade was very professional. He arrived on time. The cost was extremely reasonable. And Joe cleaned our carpeting and sofa very well! We will definitely use his services in the near future. Being we have a puppy, there were spots we could not get out of the carpet. Joe was able to remove...
Joe Sade's Carpet Cleaning Service
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Reviewed in July 2022
Awesome service and workmanship from start to finish. Tom , his crew and the office were great to work with and went the extra mile to make sure the project was done right. We would use them again and would highly recommend them to anyone needing roof work.
Timber Creek Builders, LLC
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Reviewed in April 2021
We are very pleased with the work performed on our gutters and downspouts by Chad and his team from Sodak LLC. Chad was particularly helpful with solving a problem with one section of existing gutter and recommended a larger size that we had his team install. His team was very efficient and...
Sodak, LLC
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Reviewed in February 2021
Did good work. Showed up quickly, got all my snow off the roof and cleaned up everything that ended up on the ground. Courteous and efficient.
Midwest Snow and Lawn Care
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Find Radon detection and reduction specialists in Niagara

Fox Valley Radon LLC

4.9(

)

Serving Niagara, 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

2 neighbors recently requested a quote

Recommended by85%of homeowners

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JW Rothrock Inc

New to Angi

Serving Niagara, 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

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.

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.

Yes, many systems include warranties for performance. Confirm terms with your installer.

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 Niagara, 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.
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.
Kyle Schurman
•
May 21, 2026May 21, 2026
How Does a Radon Mitigation System Work? And How Do You Keep Yourself Safe?
How does a radon mitigation system work? Learn more about how it pulls air and radon from the soil and expels it before it can enter your house.
Audrey Bruno
•
May 3, 2026May 3, 2026
How to Test for Radon in Your Home
Knowing how to test for radon will keep your home free and safe from this odorless gas—you just have to decide whether to do it yourself or hire a pro.