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*The Angi rating for Radon Detection And Reduction companies in Sioux City, 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 Sioux City, 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 August 01, 2026

Top-Rated Radon detection and reduction specialists in Sioux City - Updated Nov 2026

Avatar for Iowa Radon Defense Northwest
Iowa Radon Defense Northwest
4.7(
54
)
Radon Gas - AbatementRadon Gas - Testing

Serving Sioux City, 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 Exhaust Fan
Crawlspace Encapsulation with Radon Mitigation
Exterior Exhaust Fan and Discharge
Exterior Exhaust Fan with Cover
Roof Penetration Discharge Pipe with Roof Boot

+23

Response time1 day
22 neighbors recently requested a quote
Recommended by96%of homeowners
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Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
4.5(
13
)
Radon Gas - Abatement

Serving Sioux City, 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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Professional House Doctors
New to Angi
Radon Gas - Abatement

Serving Sioux City, IA and surrounding areas

In business since 2006

Free estimates

Credit card accepted

We pride ourselves in providing quality work for all of our customers. Your safety in your home or office is forefront in our minds when we work. We have built several relationships with local business and homeowners that we know will last a lifetime. When looking for a company that can give you peace of mind when working or living in your space look no further then Professional House Doctor.

Response time1 day
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Radon Detection and Reduction FAQs, answered by experts

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. 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 action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home’s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.

You can vent radon out of your house sometimes by simply opening a window, but it won’t remove the source, and will likely rise above recommended levels quickly. A professional will be needed to assess your home, and determine the best strategy for radon removal. Active radon sump pumps and soil depressurization systems are often used to forcefully vent the radon from your home.

Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.

The Sioux City, 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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