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*The Angi rating for Radon Detection And Reduction companies in Warrens, 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 Warrens, 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 February 11, 2026

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Avatar for American Waterworks
American Waterworks
4.6(
170
)

Serving Warrens, WI and surrounding areas

Approved

In business since 1989

Free estimates

Warranties offered

"American Waterworks did a great job installing my home's radon remediation system. I highly recommend them for this kind of job."
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 time1 day
640 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for New Horizons Radon Testing & Mitigation
New Horizons Radon Testing & Mitigation
5.0(
61
)

Serving Warrens, WI and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"The owner was the installer of our radon mitigation pump. Jeremy is very polite and respectful and was very thorough in explaining the work before, during, and after the job."
crawl space sump cap
outside view
Another External fan installation
Tight spaces
Response time3 hrs
Recommended by92%of homeowners
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Tradesman Home Inspection, LLC
5.0(
2
)

Serving Warrens, WI and surrounding areas

In business since 2021

Free estimates

Scott is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

Response time1 day
Recommended by100%of homeowners
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Radon Detection and Reduction questions, answered by experts

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 soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

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.

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.

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 Warrens, WI homeowners’ guide to radon detection and reduction services

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