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*The Angi rating for Radon Detection And Reduction companies in Watertown, SD 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.

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Last update on February 20, 2026

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Avatar for Blackburn Foundation Repair, LLC
Blackburn Foundation Repair, LLC
4.6(
23
)

Serving Watertown, SD and surrounding areas

Approved

In business since 1992

Free estimates

Warranties offered

"Blackburn came out to repair my garage foundation. They were quick, efficient, and left the area in great condition."
Crawl Space Repair
Crawl Space Repair
Response time1 day
96 neighbors recently requested a quote
Recommended by80%of homeowners
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Solar Solutions - Home Facebook
0.0(
1
)

Serving Watertown, SD and surrounding areas

In business since 1996

Free estimates

We have been your testing and abatement source, energy audits, remodeling, weatherization, radon mitigation, testing for mold, lead and asbestos.\nStudies have shown that homes that are efficiently built or retrofitted with energy efficient measures are not only cheaper to own, but more comfortable, and quiet. We can audit you home to evaluate the performance of your systems.\n

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

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.

Radon detection is crucial as prolonged exposure to radon gas, a leading cause of lung cancer, poses significant health risks in residential environments.

The fan that pulls the radon out of the air needs to run continuously, so you may see an increase in your electric bill once you install the mitigation system. Additionally, you may see an increase in your heating or cooling bills, as the fan can cause some loss of hot or cool air.

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.

Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.

The Watertown, SD 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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