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Verified Reviews for Radon Detection And Reduction pros in Northfield, IL

*The Angi rating for Radon Detection And Reduction companies in Northfield, 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 Northfield, 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 May 13, 2026

Find Radon detection and reduction specialists in Northfield

Avatar for Boomtown Radon Testing
Boomtown Radon Testing
5.0(
25
)

Serving Northfield, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Credit card accepted

"Ross called back within 30 minutes and set up an appointment for the same week at my convenience. He was extremely professional and very easy to work with. He was on time both time he had to be in my home. I had my results in my email within a few hours of him picking up the sensors. I truly appreciate his time and explanations. I would definitely recommend Ross and Boomtown Radon Testing without hesitation."
Overhead view
Up and Running
Waiting to begin
Hats
Response time8 hrs
32 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Midwest Radon Services, Inc.
Midwest Radon Services, Inc.
4.8(
38
)

Serving Northfield, IL and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"We had a radon remediation installed by them in 2021. We've had to replace the fan 2x already- whereas the expected lifetime of a fan is 8-10 years."
SF-180
Painted Slimline Fan and couplings
90 mil Foil Backed Liner
U-Tube Monometer & Sticker with State Tag
RP-145

+26

Response time1 day
16 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Signature Water and Fire Restoration
Signature Water and Fire Restoration
New to Angi

Serving Northfield, IL and surrounding areas

Approved

In business since 2013

Emergency services offered

Credit card accepted

Signature Water and Fire Restoration Company is an Illinois based company that offers a full range of property restoration services while combining the latest technologies and state-of-the-art restoration techniques. Our services cover water damage restoration, mold remediation, fire damage restoration and odor removal, cleaning services including carpet cleaning, repair and reinstallation.

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+7

Response time10 hrs
3 neighbors recently requested a quote
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Avatar for Check Radon
Check Radon
5.0(
5
)

Serving Northfield, 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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Avatar for Clue Radon Services
Clue Radon Services
5.0(
40
)

Serving Northfield, IL and surrounding areas

In business since 2016

Free estimates

Emergency services offered

"This is an excellent company, sidad did a great job at an excellent price with a great warranty, he explained how everything works and what to expect he came out on a Thursday and installed on Monday orher companies wouldn't even come out for a week just for the estimate, i was closing on my home and needed it done ASAP. Don't waste your rime with anyone else, Clue Radone Systems is the best, thanks again Sidad"
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+16

Recommended by100%of homeowners
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Radaquest Radon Inspectors
5.0(
4
)

Serving Northfield, 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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Showing 1-10 of 24
Radon Detection and Reduction questions, answered by experts

The average radon mitigation system uses about 876 kWh of electricity per year, although the exact amount of electricity used will vary depending on the size of the radon fan. Once the system is installed, the annual increase to your energy bill could range from $30 to $300 per year, again depending on the size of the fan.

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. 

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

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

While DIY testing is possible, abatement generally requires professional installation to ensure efficacy and meet safety standards.

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 Northfield, 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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