4.8 
11 *The Angi rating for Radon Detection And Reduction companies in Northfield, OH 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 Northfield, OH 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 21, 2026
Serving Northfield, OH and surrounding areas
Approved
Super Service Award Winner
In business since 2020
Free estimates
Warranties offered
"Tim Stoll is an experienced and knowledgeable person, in the areas of radon testing and mitigation. He is conscientious, diagnoses problems, and finds solutions. I highly recommend Stoll Radon Installation LLC."
Serving Northfield, OH and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Warranties offered
"Radon test and mitigation work performed. Very happy with communication, professionalism and quality of work."
+6
Serving Northfield, OH and surrounding areas
Approved
In business since 2021
Free estimates
Warranties offered
"He was knowledgeable. Price was good."
Serving Northfield, OH and surrounding areas
Approved
In business since 1987
Free estimates
Warranties offered
"Very competitively priced. They even offered me a small discount to help me decide on a pro since all 3 quotes I got were about the same. Job was done professionally, neatly and on-time. Nice work."
+2
Serving Northfield, OH and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"These guys did an excellent job on our basement floor. Made sure it was all cleaned up before leaving. They work fast as well too. Def definitely recommend! Going to be a returning customer for sure for future projects."
+24
Serving Northfield, OH and surrounding areas
Approved
In business since 1987
Emergency services offered
Warranties offered
"Perfect. I used Adam and Neatnics a few years ago and consider myself lucky to have been connected with him again. He is upfront with what he believes should be done, cost, and thoroughly understands the insurance industry. He keeps you informed about what to expect, is timely, very neat, and considerate of your home. I will use him again, and again."
+70
Serving Northfield, OH and surrounding areas
Approved
In business since 2025
Free estimates
Credit card accepted
"Contractor was good communicator, friendly, professional, thorough, punctual, knowledgeable."
+2
Serving Northfield, OH and surrounding areas
Approved
In business since 2018
Free estimates
Warranties offered
"I'm a realtor & have used Trust Worthy LLC many times!! Always great friendly service. Work always done as stated & on time or even sooner! Would definitely recommend!!"
+1
Serving Northfield, OH and surrounding areas
In business since 2018
Free estimates
Small jobs welcome
"Both men where very professional and were on-time and answered all my questions."
Serving Northfield, OH and surrounding areas
In business since 2019
Emergency services offered
Warranties offered
"We had our home checked for Radon since the levels were high in our area. Matt was able to come out and install/test the scavenging system in a very timely manner. He was very professional, and reasonable!"
+11
From average costs to expert advice, get all the answers you need to get your job done.
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.
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.
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.
