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*The Angi rating for Radon Detection And Reduction companies in Danbury, 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 Danbury, 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 March 21, 2026

Find Radon detection and reduction specialists in Danbury

Avatar for American Waterworks
American Waterworks
4.6(
169
)

Serving Danbury, WI and surrounding areas

Approved

In business since 1989

Free estimates

Warranties offered

"This job was completed efficiently and professionally. A design specialist came to test and measure every detail for the project. The crew arrived with everything needed for the job. They worked very hard to install Waterguard in the concrete floors inside around the foundation to the sump pump basket. They also installed Geo-lock anchors to support a block wall that was bowed. This company has 36 years in business and provides excellent results and professional customer relations. Call Amer. Wtrwrks for a free estimate. You will not be disappointed. A wise investment of $11,270."
Another Sinking Floor
Dirt Crawlspace in Elk Mound, WI
Concrete stoop had sunk over 6 inches
Foundation Failure Signs
Increased Efficiency of Crawlspace in Elk Mound

+156

Response time3 hrs
642 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for Koti-Home, LLC
Koti-Home, LLC
5.0(
2
)

Serving Danbury, 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
)

Serving Danbury, 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 questions, answered by experts

Mitigation reduces radon levels, protecting your health and complying with safety standards.

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

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.

Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home’s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.

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.

The Danbury, 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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