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*The Angi rating for Radon Detection And Reduction companies in Superior, 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 Superior, 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 June 30, 2025

Top-Rated Radon detection and reduction specialists in Superior - Updated Nov 2026

Avatar for Northland Home Inspections
Northland Home Inspections
4.5(
28
)
Radon Gas - Testing

Serving Superior, WI and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Todd was very knowledgeable. He answered all questions that I had and even explained what would need to be done to make repairs on things that he found and gave rough estimates of the average costs to make these repairs. I would recommend to friends and family if they we're to need an inspection."
Response time8 hrs
4 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for Koti-Home, LLC
Koti-Home, LLC
5.0(
2
)
Radon Gas - Testing

Serving Superior, WI and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"Brandon is great! He helped me out when I found myself in a time crunch for getting an inspection. He was very thorough and honest. He even checked out the treehouse in the back yard! I would highly recommend Koti-Home!"
Home Ispected
Response time7 hrs
Recommended by100%of homeowners
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Microbe Guard
1.0(
1
)
Radon Gas - AbatementRadon Gas - Testing

Serving Superior, WI and surrounding areas

In business since 2004

Microbe Guard of Western Wisconsin, LLC has been successfully completing mold remediation projects since 2004; we offer a professional and experienced approach when handling microbial remediation projects. There are thousands of types of mold that occur naturally in our environment. Most are harmless, some cause allergic reactions and others can be toxic enough to create severe health problems in some individuals. Microbe Guard of Western Wisconsin, LLC will help you determine the mold types and concentration levels in your home or workplace with our state of the art testing equipment. The remediation process includes identifying mold, locating and eliminating the source of moisture intrusion, properly containing the affected area from the rest of your home, running HEPA "air scrubber machines," removing and encapsulating mold, and properly disposing of all contaminated materials. Indoor Air Quality is of the most importance to you and your family. Contaminants such as mold can create serious health issues. Microbe Guard of Western Wisconsin, LLC will manage your project from beginning to end with our knowledge and expertise. We look forward to working with you.

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Radon Detection and Reduction FAQs, answered by experts

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

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.

There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.

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.

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. 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 action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

The Superior, 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.

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