How do you prevent radon in your home?

• <div><p>Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. </p><p>Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.</p></div>

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Q: What would cause radon in a house?

• <div><p>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.</p></div>

Q: How does radon enter my home?

• <div><p>Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.</p></div>

Q: What if radon is still high after mitigation?

• <div><p>You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.</p></div>

Q: Do air purifiers help with radon?

• <div><p>No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Ashland, WI

*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.

*The HomeAdvisor 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.

Last update on August 06, 2025

Reviewed in August 2025
Ryan arrived on time and finished the job efficiently and with professional skill. Definitely would use him agin!
Ryan Foley Masonry & Construction LLC
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Reviewed in July 2025
I absolutely L-O-V-E my new baths from Mad City! Peter, the installer, did an amazing job! He was unbelievably quick and knew exactly what he was doing! I was so impressed by his skill and craftsmanship. He not only took great care to cover the floors and keep everything protected, he also...
Mad City Windows & Baths
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Reviewed in October 2024
Gunner and his help were very professional and courtious. They answered all of the questions that I had. I would highly recommend them.
Elite
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Reviewed in July 2024
The whole process was seamless. Showed up when he said would. Did exactly what he said he would do for the price quoted. We strongly recommend and we would hire him again.
DH Services
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Reviewed in May 2024
We are very happy with the work that was done. and it only took 3 days.
Renewal by Andersen Lake Superior Region
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Reviewed in February 2024
Stumpies Tree Works came out to take care of a few problem trees for me. He flawlessly took the trees down with no damage to the nearby buildings and did a great job of cleaning up the debris! I highly recommend Stumpies Tree Works to anyone in need of problem tree removal!
Stumpies Tree Works
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Reviewed in February 2024
I had a very good experience with WhiteCap Construction. I needed little front porch poured and a little bit of sidewalk. Also had a few miscellaneous projects in the house. I worked with Clay, he was hard working and alway show up on time. I love how everything turned out. Would highly recommend
WhiteCap Construction
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Reviewed in November 2023
These guys did an excellent job, we had no idea what we were going to run into but they fixed everything that came up as an issue and my bathroom turned out beautiful . Highly recommend.
J&N Summit Solutions LLC
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Reviewed in September 2022
These folks are amazing! My wife bought a watch for me 20 some years ago and it had stopped keeping accurate time and he crystal was scuffed. This watch was a rare model that is no longer made. They did a beautiful job inside and out in a timely (no pun intended) fashion. Communication was...
Times Ticking Inc
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Reviewed in June 2022
Very nice young man, easy to work with and very knowledgeable about his job!
Ashland Exteriors, LLC
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Find Radon detection and reduction specialists in Ashland

Northland Home Inspections

4.5(

)

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

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!"

Response time7 hrs

Recommended by100%of homeowners

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JW Rothrock Inc

New to Angi

Serving Ashland, WI and surrounding areas

In business since 1994

For lead testing and other specialty services JW Rothrock Inc. is Wisconsin's premier in lead testing as well as abatement. For cost effective and professional service JW Rothrock is by far above and beyond the rest.

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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.

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter.

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.

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

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