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

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Last update on June 25, 2026

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

Serving Ashland, WI and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Todd listened to my concerns and was very knowledgeable when he answered any questions I had. I would definitely recommend him! The seller was also present at the inspection and she was also very happy with Todd's work."
Response time8 hrs
7 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 Ashland, 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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Radon Detection and Reduction questions, answered by experts

Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.

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 the number one non-smoking cause of lung cancer in the United States, but it can cause some other concerning side effects in the meantime. If you have a raspy voice, chest pains, trouble breathing, difficulty swallowing, or any of the above, don’t hesitate to perform radon testing and install a mitigation system as soon as possible.

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 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 Ashland, 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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