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

*The Angi rating for Radon Detection And Reduction companies in Ionia, 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 Ionia, 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 May 18, 2026

Find Radon detection and reduction specialists in Ionia

Avatar for Milledge Construction
Milledge Construction
4.9(
32
)
Radon Gas - Abatement

Serving Ionia, 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%
94 neighbors recently requested a quote
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Avatar for American Waterworks
American Waterworks
4.6(
170
)
Radon Gas - AbatementRadon Gas - Testing

Serving Ionia, IA and surrounding areas

Approved

In business since 1989

Free estimates

Warranties offered

"This job was completed efficiently and professionally. A design specialist came to test and measure every detail for the project. The crew arrived with everything needed for the job. They worked very hard to install Waterguard in the concrete floors inside around the foundation to the sump pump basket. They also installed Geo-lock anchors to support a block wall that was bowed. This company has 36 years in business and provides excellent results and professional customer relations. Call Amer. Wtrwrks for a free estimate. You will not be disappointed. A wise investment of $11,270."
Another Sinking Floor
Dirt Crawlspace in Elk Mound, WI
Concrete stoop had sunk over 6 inches
Foundation Failure Signs
Increased Efficiency of Crawlspace in Elk Mound

+156

Response time3 hrs
636 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
4.5(
13
)
Radon Gas - Abatement

Serving Ionia, IA and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"Our radon specialist, Tim Milledge, was terrific. Communication was excellent, he arrived on time, was professional, courteous and experienced. He was able to run the pipe line and place the other equipment in a way to be unobtrusive and did nothing to detract from the aesthetics of our property. He explained post procedures and cleaned up after himself, unusual these days with service providers, and completed the installation quickly and efficiently. We would highly recommend SWAT and, in particular Tim."
Response time1 day
Recommended by100%of homeowners
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Avatar for EJS Roofing LLC
EJS Roofing LLC
4.4(
89
)
Radon Gas - AbatementRadon Gas - Testing

Serving Ionia, IA and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"His staff was good. The price was fine. Quality of work was good. Responsiveness was good. They get right into it."
EJS Roofing.
EJS Roofing.
EJS Roofing.
Recommended by88%of homeowners
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Radon Detection and Reduction questions, answered by experts

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

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.

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

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.

Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.

The Ionia, 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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