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*The Angi rating for Radon Detection And Reduction companies in Glenwood, IL 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 Glenwood, IL 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 April 23, 2026

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

Avatar for U.S. Waterproofing
U.S. Waterproofing
4.2(
598
)
Radon Gas - Abatement

Serving Glenwood, IL and surrounding areas

Approved

In business since 1957

Free estimates

Warranties offered

"Called company on Monday and got an appointment for an inspection on Wednesday. That following Monday, the technician arrived and went through each step is sealing off the concrete foundation to the water leak. The fix worked well and was put to the test with the recent record rains. Not one drop of water came into the basement."
Radon Mitigation
Radon Mitigation
Basement Waterproofing
Basement Waterproofing
Response time1 day
Response rate100%
17 neighbors recently requested a quote
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Avatar for PROFESSIONAL RADON SYSTEMS INC
PROFESSIONAL RADON SYSTEMS INC
4.8(
92
)
Radon Gas - AbatementRadon Gas - Testing

Serving Glenwood, IL and surrounding areas

In business since 1988

Free estimates

Warranties offered

"Professional Radon System did an excellent job. They put the customer at ease. Work was done neatly installer explained everything thoroughly. I will use Professional Radon system again, and I will wii refer to family, friends and neighbors."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
2 Suction Points

+4

Response time2 days
Recommended by95%of homeowners
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Avatar for Radon Professional Services
Radon Professional Services
4.6(
34
)
Radon Gas - AbatementRadon Gas - Testing

Serving Glenwood, IL and surrounding areas

In business since 2012

Credit card accepted

"Completely satisfied. Would certainly recommend them for Radon mitigation work. They worked efficiently, were neat and clean and the price was quite reasonable."
Recommended by100%of homeowners
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Avatar for Check Radon
Check Radon
5.0(
5
)
Radon Gas - Testing

Serving Glenwood, IL and surrounding areas

In business since 2015

Small jobs welcome

Credit card accepted

"Technician explained everything about Radon in terms we could totally understand. He was patient, polite, totally knowledgeable and professional."
Response time2 hrs
Response rate100%
Recommended by100%of homeowners
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Radaquest Radon Inspectors
5.0(
4
)
Radon Gas - Testing

Serving Glenwood, IL and surrounding areas

In business since 2008

Free estimates

Credit card accepted

"Very easy to get an appointment on short notice when I had limited time to get a radon test done in the process of purchasing a home. Their price was also slightly lower than an estimate I'd received from another company, and the technician was more thorough about explaining the process than the other company I considered."
Response time5 hrs
Response rate87%
Recommended by100%of homeowners
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Avatar for West Suburban Inspections Inc
West Suburban Inspections Inc
5.0(
4
)
Radon Gas - AbatementRadon Gas - Testing

Serving Glenwood, IL and surrounding areas

In business since 1996

Free estimates

Credit card accepted

"West Suburban Inspections Inc

West Suburban Inspections, very thorough, and did a good job.
He explained everything in simple terms."
Home Inspector License
Inspection Company License
Certified Indoor Air Consultant
Recommended by100%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.

Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).

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.

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.

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

The Glenwood, IL 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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