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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

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Avatar for American Waterworks
American Waterworks
4.6(
170
)

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
633 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

The lifespan of a radon mitigation system depends on the type of system and its maintenance. With proper care, a system can last for many decades. Passive systems tend to last longer as they have fewer components that require replacement. Active systems, which have more moving parts like fans, generally have a shorter lifespan. For instance, water filtration devices and active pressurization systems require more frequent maintenance. While the system as a whole is durable, the radon fan in an active system typically has a lifespan of 5 to 10 years and will need to be replaced. As long as the fan is working, the mitigation system should function correctly.

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.

Abatement includes sealing entry points and venting with systems that reduce radon levels below recommended EPA limits. It is handled by certified professionals.

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.

No, radon mitigation systems do not decrease home value or make a home harder to sell. In areas where homes experience similar radon exposure risks, a radon mitigation system is viewed as an improvement. Potential homebuyers often opt to buy a home with a radon mitigation system already installed to reduce the risk of cancer for their families.

The Danbury, WI homeowners’ guide to radon detection and reduction services

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