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Verified Reviews for Radon Detection And Reduction pros in Marshalltown, IA

*The Angi rating for Radon Detection And Reduction companies in Marshalltown, IA 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 Marshalltown, IA 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 15, 2026

Find Radon detection and reduction specialists in Marshalltown

Avatar for Iowa Radon Defense
Iowa Radon Defense
4.6(
50
)
Radon Gas - AbatementRadon Gas - Testing

Serving Marshalltown, IA and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"National Radon Defense Midwest employees were very knowledgeable and helpful. As we were selling our house we discovered that we had high radon readings and needed to mitigate the problem. They explained to us the process and clearly identified what they would recommend to resolve the issue. We thought it was very reasonably priced and feel confident intheir products, staff and installation"
Interior Install
Interior Install
Interior Install
Interior Install
Interior Install

+14

Response time1 day
62 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for All Iowa Radon Mitigation
All Iowa Radon Mitigation
4.9(
63
)
Radon Gas - Abatement

Serving Marshalltown, IA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"Jeremy was very professional and did a great job. He had reached out after I scheduled the original appointment to reschedule due to poor weather conditions. He offered to move the appointment to a date/time that he usually doesn t work to accomodate my needs. Once he had finished his work, he walked my fiance and I through everything explained it all very clearly. He also thoroughly explained the process for testing radon levels and getting test results back after the mitigation installation was complete. Would definitely recommend his services as he did a great job and his quote was very competitive."
Response time1 day
Response rate85%
2 neighbors recently requested a quote
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Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
4.5(
13
)
Radon Gas - Abatement

Serving Marshalltown, IA and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"They did a great job with the installation and made sure the Radon was under the level it needed to be. He had to make a couple of trips to make that happen but was very polite and profession through the whole process."
Response time1 day
Recommended by100%of homeowners
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Avatar for Home Sweet Home Inspect Iowa Facebook
Home Sweet Home Inspect Iowa Facebook
4.8(
12
)
Radon Gas - Testing

Serving Marshalltown, IA and surrounding areas

In business since 2020

Free estimates

Small jobs welcome

"Luis was very polite and professional! He explained the issues so I could understand. I would absolutely recommend him to others!"
Roof Inspection
Venting conduit
Company Logo
A service
Promotions.Because you deserve it!

+11

Response time3 hrs
Response rate88%
Recommended by100%of homeowners
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Radon Detection and Reduction questions, answered by experts

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

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.

Mitigation reduces radon levels, protecting your health and complying with safety standards.

Yes, many systems include warranties for performance. Confirm terms with your installer.

Ideally, no one will live in a house with elevated radon levels, as prolonged exposure increases the risk of serious health issues like lung cancer. However, homes with radon can be made safe through mitigation systems, such as active soil depressurization. Testing for radon regularly and addressing high levels helps ensure a safe living environment.

The Marshalltown, IA 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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