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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
4.5(
49
)

Serving Marshalltown, IA and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"RADON SYSTEM WAS NOT WORKING. (Installed by another company years ago). The phone contact was pleasant and efficient. The Technician came on the agreed day and the agreed time: he explained what was wrong, explained the options, then repaired the system so it is working better than it did when first installed."
Interior Install
Interior Install
Interior Install
Interior Install
Interior Install

+14

Response time1 day
54 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Milledge Construction
Milledge Construction
4.9(
32
)

Serving Marshalltown, IA and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"They installed a Radon Mitigation system in a house I was selling. They had the best price, the experience I wanted, and were able to install a few days after I called. Technician was very nice and efficient in getting it installed. Good warranty too. I had my system installed in an encapsulated crawl space."
Response time7 hrs
Response rate94%
88 neighbors recently requested a quote
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Avatar for All Iowa Radon Mitigation
All Iowa Radon Mitigation
4.9(
63
)

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
1 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
4.5(
13
)

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
)

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

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.

Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.

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

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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