*The Angi rating for Radon Detection And Reduction companies in Harrison, 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 Harrison, 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 28, 2026
Serving Harrison, OH and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Credit card accepted
"Radon test. Timely, efficient, honest, reasonable cost."
Serving Harrison, OH and surrounding areas
In business since 2010
Free estimates
Warranties offered
"I was extremely impressed with the professionalism of both workmen. They listened to my concerns and we were able to come up with an alternative approach to placement of the system. They were able to provide protection of both areas of my home with one system instead of installing two separate Radon systems. The system was placed in the unfinished area of the basement leaving all my finished area untouched. They left the work space cleaner then it was when they started and made sure everything was put back in place. I highly recommend Tri State Radon and Mold, Inc."
Serving Harrison, OH and surrounding areas
In business since 2008
Free estimates
Credit card accepted
"Our radon system fan needed to be replaced and we were able to get that done the day after I talked to this company. Very quick and courteous service and didn't cost as much as we were anticipating."
+11
Serving Harrison, OH and surrounding areas
In business since 1986
"Did a great job and reasonably priced."
Serving Harrison, OH and surrounding areas
In business since 2003
Free estimates
Credit card accepted
"Kevin was very thorough, easy to work with, and provided an excellent report. He also continues to send monthly newsletters at no additional charge that have very helpful tips and information about home maintenance."
Serving Harrison, OH and surrounding areas
In business since 2020
Free estimates
Credit card accepted
"Very professional and got the job done. Very knowledgeable."
Serving Harrison, OH and surrounding areas
In business since 2011
Emergency services offered
Credit card accepted
"William did a good job of preparation and cleaning."
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.
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.
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.
