*The Angi rating for Radon Detection And Reduction companies in Winnetka, 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 Winnetka, 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
Serving Winnetka, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2020
Free estimates
Credit card accepted
"On time. Very professional. Quick to supply results of test."
Serving Winnetka, 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.
+7
Serving Winnetka, IL and surrounding areas
In business since 2012
Credit card accepted
"Jose was very professional, on time and thorough. I will definitely use him again."
Serving Winnetka, IL and surrounding areas
In business since 1994
Emergency services offered
Credit card accepted
"He was very good! He discussed with the seller all of what he found in his inspection and was very professional. I will highly recommend him. He's a great guy!"
Serving Winnetka, 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."
Serving Winnetka, IL and surrounding areas
In business since 2016
Free estimates
Emergency services offered
"Sidad did an awesome job of addressing Radon issue in the home I recently moved in to. He filled visible cracks in the basement, replaced the sump pump pit lid & sealed the same, in addition to the radon mitigation system installation. He has a friendly approach & does his best to meet his clients needs. I was completely satisfied with his work."
+16
Serving Winnetka, 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."
Serving Winnetka, IL and surrounding areas
In business since 1996
Free estimates
Credit card accepted
"Skip, the inspector, is very nice, knowledgeable, organized, and explained everything clearly."
Serving Winnetka, IL and surrounding areas
In business since 2008
Free estimates
Emergency services offered
"It was a nice they are thorough and I was satisfied with it."
Serving Winnetka, IL and surrounding areas
In business since 1997
Free estimates
Emergency services offered
"COMPLETED WORK IN ONE DAY, AT AN EXTREMELY REASONABLE COST."
If radon is present in your home, you can expect to pay around $1,000 for a radon mitigation system or between $780 and $1,250 in most cases. The exact price will depend on the severity of the radon leak, home size, and the protocol the radon specialist develops to remove radon from your home and keep it out. Your foundation type will also affect your radon mitigation system cost, as unfinished basements will cost about $4,600 to seal and ventilate, while crawl spaces without a foundation slab may need extra encapsulation, costing $1,500 to $15,000.
You can buy DIY radon test kits from a home improvement store and conduct radon testing, but these tests are often inaccurate. No matter the result, you should supplement DIY testing with professional radon detection and analysis. DIYers only have access to passive radon tests, which aren’t as reliable as active tests that professionals use. Plus, it’s very easy for DIYers to make mistakes during testing, leading to inaccurate results. If you’re moving into a new home, have concerns about radon, or are due for an updated test, hire a professional.
Radon testing costs depend on whether you hire a professional radon inspector or DIY test. You can expect to pay $150 to $800 to hire a local radon inspector, and home-testing kits range in price from $15 to $250 from home improvement stores. However, it’s best to trust a professional inspector with this task to ensure accurate results. Plus, if you have radon in your home, your testing company can develop a mitigation protocol to keep you and your family safe from the dangerous gas, so it’s well worth the money to hire a professional.
Yes, radon testing is absolutely necessary if you suspect the presence of this hazardous gas, and the Environmental Protection Agency (EPA) recommends testing for all homes in the country. Radon is a pervasive natural gas that can leak through your home’s foundation and seep into the living areas. Unfortunately, the gas is highly carcinogenic and is the second leading cause of lung cancer. Radon testing is crucial for keeping you and your family safe from harm, so hire a radon mitigation specialist to test your home if you suspect its presence in your home.
In most states, radon testing companies don’t need to be licensed or certified by the state, but the companies that analyze the test results and develop radon mitigation protocols do. You should choose a radon testing company that suits your needs, but before hiring a mitigation specialist, check our state licensing tool to make sure the company is properly certified.
From average costs to expert advice, get all the answers you need to get your job done.
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The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
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