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Q: How do you remove radon from your home?

• <div><p>You can vent radon out of your house sometimes by simply opening a window, but it won&rsquo;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.</p></div>

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

• <div><p>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.</p></div>

Q: What would cause radon in a house?

• <div><p>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.</p></div>

Q: Can I perform radon gas abatement myself?

• <div><p>While DIY testing is possible, abatement generally requires professional installation to ensure efficacy and meet safety standards.</p></div>

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>

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

*The Angi rating for Radon Detection And Reduction companies in Cortland, 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 Cortland, 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 November 25, 2025

Reviewed in November 2025
Yes, Devon is very polite, knowledgeable, efficient and accurate. He showed me and explained the problem and how it needs to be repaired. I highly recommend Devon.
Affordable Appliance Repair Technicians, LLC
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Reviewed in July 2025
Went well. Anthony is very thorough and Efficient. I've had him for my hvac checkups and repairs numerous times. Always a good experience. Service Now is a good local company that is thorough in all correspondence and am happy with their services.
Service Now Home Services
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Reviewed in August 2023
Right Way Tree Service is exceptional!! That are on time and there cleanup of the debris was great. Walker the owner has an incredible knowledge of trees and his pruning/trimming artistry is fantastic. He just doesn’t come in and start cutting, he trims the trees with knowledge and experience....
Right Way Tree Care
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Reviewed in June 2023
Top notch pros. I had two large pines removed. Rustina and her crew are awesome! I have future work planned, and now Rustina is on my speed dial!
Anytime Arbor Care
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Reviewed in June 2023
Appreciate the work that was completed and how it was done in a timely fashion. Gio and Scott were great to work with Roof was removed, garage was cleaned and service was fast!
Summit Roofing Corp.
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Reviewed in May 2023
I hired StueCo for radon remediation. Doug did the work efficiently and the retest was excellent. Good value for the money. I would recommend StueCo for radon remediation.
StueCo
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Reviewed in December 2022
Our experience with Terrehaven Solutions will sound like a broken record compared to everything else I have read about them. John and his two associates were the utmost professional, timely, and respectful of our home, property, and our goal of getting the deck built before the winter hit. ...
Terrehaven Solutions
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Reviewed in May 2022
Very happy with my Marygrove. experience., from the salesman to the installation team . Everyone was knowledgeable and professional.. Adam and Chris? (I think that was his name) did the installing and did an excellent job! They even texted me with their arrival time! Thanks so much. the awning...
Marygrove Awning Co.
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Reviewed in February 2022
The technician was knowledgeable and professional. He came out on a Sunday at no extra charge, and fixed the problem quickly, and at a reasonable cost. I highly recommend them.
EDM Garage Doors
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Reviewed in December 2021
Nick contacted me almost immediately after scheduling my initial appointment through home advisor. He was timely with his appointments, professional during his conversations, and he worked efficiently during the project itself. I love that his work has a transferable written guarantee!!! His...
Radman Radon Testing
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Find Radon detection and reduction specialists in Cortland

PROFESSIONAL RADON SYSTEMS INC

4.8(

)

Serving Cortland, IL and surrounding areas

In business since 1988

Free estimates

Warranties offered

"Radon levels went from about 12 to hovering between 0.4 and 0.1 after about 24 hours. Great work done quick and done well."

Response time2 days

Recommended by95%of homeowners

Serving Cortland, 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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Radon Detection and Reduction questions, answered by experts

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.

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 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.

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 Cortland, 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.

See all articles

Mitchell Grant
•
Mar 18, 2026Mar 18, 2026
How Much Does a Radon Mitigation System Cost? [2026 Data]
The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
Alison Kasch
•
Apr 6, 2026Apr 6, 2026
How Much Does Radon Remediation Cost? [2026 Data]
Get clear answers on how much radon remediation costs, including average prices, key cost factors, and tips to save money on your home’s radon mitigation.
Angi
•
Mar 18, 2026Mar 18, 2026
How Much Does Radon Testing Cost? [2026 Data]
Find out what impacts radon testing costs, including average prices for DIY kits and professional services, so you can protect your home and budget confidently.
Angi
•
May 21, 2026May 21, 2026
How to Hire a Radon Testing Pro
Learn how to hire a qualified radon testing pro for your home. Find certified professionals, understand costs, and get expert tips to protect your family.
Amy Freeman
•
Apr 5, 2026Apr 5, 2026
Who Installs Radon Mitigation Systems?
Radon is a gas that you can't see or smell and is harmful to your health. If your home has radon, you need to know who installs radon mitigation systems.
Dan Simms
•
Apr 5, 2026Apr 5, 2026
5 Questions to Ask About Radon Gas Abatement
Radon is a radioactive gas that can enter a home from the ground. Prepare yourself for mitigation by answering these questions before hiring a pro.