*The Angi rating for Radon Detection And Reduction companies in Somonauk, 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 Somonauk, 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 16, 2026
Serving Somonauk, IL and surrounding areas
Approved
In business since 1988
Free estimates
Customers say: Quality work
"Quick and easy to work with. We failed our first radon test and passed the second after having the system put in. Highly recommended."
+11
Serving Somonauk, IL and surrounding areas
Approved
In business since 2017
Free estimates
Warranties offered
"As a Realtor, Schan has done many of my clients' radon system install and they all were extremely please with his knowledge, install and his going above and beyond to make the system appealing from the exterior of the home. Many companies will not make the effort to ensure that the system does not look unsightly. Schan does and he is an expert at what he does. I would only recommend Schan to my clients!"
+18
Serving Somonauk, 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."
Serving Somonauk, 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."
+4
Serving Somonauk, 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 Somonauk, IL and surrounding areas
In business since 1996
Free estimates
Warranties offered
"Explained features and process. Most people have no idea what they are in for with radon testing, he does a great job explaining why he is better. I agree he is better. Installation process is easy."
+20
Serving Somonauk, IL and surrounding areas
In business since 1998
Free estimates
Credit card accepted
SWAT Environmental, Inc. is the nation's largest radon abatement engineer. Our experienced staff has corrected Radon problems for over 60,000 customers since 1988 with 100% success!
Serving Somonauk, IL and surrounding areas
In business since 1988
Free estimates
Stuedemann Radon Resolutions is a husband and wife team committed to providing expert personal radon-related services to the communities we serve, and is committed to providing all services in accordance with the requirements of the Radon Industry Licensing Act 32, Illinois Administrative Code 422, Licensing of Radon Mitigation Services, and our Quality Assurance Program (QAP). Compliance with our policy is mandatory for all Stuedemann Radon Resolutions, employees involved in radon-related services or practices.\nThe Stuedemann Promise:\nLife-time guarantee on workmanship & unconditional system success; Follow tradition of our 25-year commitment to use of only quality materials; fan manufacturer offer of 5 year warrantee on fan parts; system designed for all lowest-level conditions: basement, crawlspace, slabs; unconditionally guaranteed to reduce radon levels to below 4.0 pCi/L; family-owned and operated construction company since 1985; free estimates and fully insured.
From average costs to expert advice, get all the answers you need to get your job done.
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.
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What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.
Knowing how to test for radon will keep your home free and safe from this odorless gas—you just have to decide whether to do it yourself or hire a pro.
