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Q: What level of radon is considered safe or dangerous?

• <div><p>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.</p></div>

Q: How does radon enter my home?

• <div><p>Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.</p></div>

Q: Do radon mitigation systems come with warranties?

• <div><p>Yes, many systems include warranties for performance. Confirm terms with your installer.</p></div>

Q: What are the health risks associated with radon exposure in homes?

• <div><p>Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.</p></div>

Q: Why is my radon mitigation system so loud?

• <div><p>Your radon mitigation system may be loud because it&rsquo;s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.</p></div>

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

*The Angi rating for Radon Detection And Reduction companies in Onarga, 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 Onarga, 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 June 01, 2026

Reviewed in June 2026
“I highly recommend for any lawn care, home maintenance, or repair needs. I recently had several projects completed around my house and yard, and I couldn’t be happier with the results. The work was done professionally, efficiently, and with great attention to detail
Just About Everything
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Reviewed in January 2025
Our experience with Mad City was everything and more than we expected. They were very polite and considerate and did excellent work
Mad City Windows & Baths
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Reviewed in April 2024
Z&M came out to plan a landscaping mowing and weeding service along with power washing of my siding and gutter cleaning. They were knowledgeable and helpful. They quoted a very reasonable prices and were helpful in planning solutions for yard improvements.
Z&M Pressure Washing and Mowing Services
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Reviewed in November 2023
As a Realtor, I have used American Radon Systems several times when a property has elevated radon. Bill is excellent to work with and very quick to get the job done!
American Radon Systems
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Reviewed in January 2023
Installer came on time and was able to remove our old tub and liner and install new walk - in shower for us all in about 6 hours. He did an excellent job cleaning up afterwards also. We couldn't be more satsified. Thanks Bath Planet
Bath Planet of Buffalo
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Reviewed in June 2022
This project was top notch. Showed up on time and finished in a day. Our installer was polite. Professional and did a great job. This was for our 86 Mother and she is so happy with this project. Customer Service was also helpful and walked us through the process in a professional manner.
Bath Planet of Rochester
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Reviewed in June 2022
Our installer was professional and did a great job.
Bath Planet of Peoria
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Reviewed in February 2022
They were fast and efficient.
The Garage Door Guys of Central Illinois, LLC
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Reviewed in June 2021
Good work and done well.
Meta Construction
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Reviewed in December 2020
They disposed of an old tread mill from my home. They came in a short amount of time and performed the task quickly.
Hoosier Excavating
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Radon Detection and Reduction questions, 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.

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

Yes, many systems include warranties for performance. Confirm terms with your installer.

Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.

Your radon mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

The Onarga, 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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