Top-rated radon detection and reduction specialists.

Best radon detection and reduction specialists near Montreal, WI

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 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: 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: What are the health risks associated with radon exposure in homes?

• <div><p>Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.</p></div>

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

*The Angi rating for Radon Detection And Reduction companies in Montreal, 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 Montreal, 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 August 27, 2026

Reviewed in August 2026
Superior Asphalt arrived this afternoon and had paved our entire 187 foot driveway. They gave us an exceptional driveway at a great price. The crew was friendly, hardworking, diligent, fast, and extremely professional. My husband has wanted our driveway paved for roughly 30 years and...
Superior Asphalt Services LLC
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Reviewed in June 2026
Highly recommend- fabulous work, very courteous and pleasant. They cleaned everything in the house too to bottom and it?s never been cleaner :)
Clear Choice Cleaning
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Reviewed in July 2025
I am so grateful for the work G and J did for me. Josh is an amazing man and a very knowledgeable in his work. He is so patient and hard working and kind. He is reliable and came 2 X to my home. It thank you so much, Josh, for your service.
G and J Plumbing PLLC
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Reviewed in June 2025
Brycen and crew replaced my retaining wall. The before was a weedy mess with collapsing stairs. Its now weed free, paved, new stairs, and rock landscaping. Excellent job. I highly recommend Kitto Property Maintenance
Kitto's Property Maintenance
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Reviewed in September 2023
Very good prep work and application, Drive way looks much better, Very hard workers.
RAM Contracting
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Reviewed in August 2022
They were awesome. Got everything cleaned that needed to be done on my RV. Very timely efficient and detail orientated on cleaning. Highly recommend. Would hire them again whenever I need it.
Splash Power Washing LLC
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Reviewed in May 2022
I would highly recommend 5Star...they were on time from the beginning...everyone we dealt with was polite, knowledgeable and helpful. I was pleasantly surprised at the project being done in a matter of hours and the very good price. I will use them again. Jackee G. Hartland WI
Five Star Painting of Waukesha
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Reviewed in September 2021
He did a great job! He was very professional and timely!
Northland Mosquito Control
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Reviewed in August 2021
Great craftsmanship and a great worker
Rustic Renovations of WI
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Top-Rated Radon detection and reduction specialists in Montreal - Updated Nov 2026

JW Rothrock Inc

New to Angi

Radon Gas - AbatementRadon Gas - Testing

Serving Montreal, 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 FAQs, answered by experts

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.

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.

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.

Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.

The Montreal, 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
•
Sep 28, 2026Sep 28, 2026
How Much Does a Radon Mitigation System Cost? [2026 Data]
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How Much Does Radon Remediation Cost? [2026 Data]
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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.
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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
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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
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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.