5 
17 *The Angi rating for Radon Detection And Reduction companies in Plainfield, 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 Plainfield, 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 21, 2026
Serving Plainfield, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Warranties offered
"My house was a challenging project. We were not sure it would work. However the radon levels went down to very low levels. Very happy!"
Serving Plainfield, 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 Plainfield, IL and surrounding areas
Approved
In business since 1991
Free estimates
Credit card accepted
"They contacted us immediately and were here the next day to test our home for radon. They were very thorough and inspired confidence. They also gave us a report of what they found. Also resonable prices!"
+39
Serving Plainfield, IL and surrounding areas
Approved
In business since 2017
Free estimates
Warranties offered
"Schan did a great job, very professional. He came out to see what the job was before he gave me a quote. I have a huge crawl space which took some time but he stuck with it to finish it in one day. Now I can breathe easier knowing it's taking care of right. I highly recommend Clean Air Radon Systems."
+18
Serving Plainfield, IL and surrounding areas
Approved
In business since 2020
Free estimates
Warranties offered
"I had a great experience with this company. Doug did a fantastic job installing our radon mitigation system. He went above and beyond and sealed up some cracks in the basement concrete as well and explained how everything worked. I requested a quote only 3 days ago and it is already installed!"
Serving Plainfield, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Small jobs welcome
"Mat is the inspector realtors hate... tongue-in-cheek. He is extremely knowledgeable, has great attention to detail, and is very honest. If there is something wrong with the property, you better believe he's going to find it. He takes the time and does a thorough job. I highly recommend him!"
+4
Serving Plainfield, IL and surrounding areas
Approved
In business since 1957
Free estimates
Warranties offered
"They came to do the repair but I never got a good feeling about it. They charged a lot for one crack."
Serving Plainfield, 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."
+4
Serving Plainfield, IL and surrounding areas
In business since 2020
Free estimates
Credit card accepted
"I would definitely recommend Radon Doctor. Ramesh was polite, communicative, and prompt and efficient."
Serving Plainfield, IL and surrounding areas
In business since 2015
Emergency services offered
"If you are looking for radon mitigation or radon testing dont look beyond clay radon services.I was amazed by his service the way he explain me the whole process and then sending out the contract having all the warannty details and other info.And on the work perspective he made it look so simple and flawless that i was not even knowing that something was going on in my basement.He work one step ahead and seal all the basement cracks plus took care of replacing sump pump lid too and sealing it. From exterior also he install it in such a way that I dont even feel that something extra has been installed in my house. Good job.And on the price I don't think anyone can beat him on price with the qaulity of service he is providing.cheers."
From average costs to expert advice, get all the answers you need to get your job done.
The cost of a radon mitigation system in Chicago, IL, depends mostly on the type of system being installed. Use this guide to learn about your options.
The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
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.
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.
What is radon gas? Find out what this radioactive gas is, why it is dangerous, how it gets in your home, and how to mitigate it.
What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.
