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 2019
Free estimates
Emergency services offered
"This is the review. Let me know this is good before I send Prompt and on time service for the asbestos removal along with safe and proper poly containment. Also 3rd party testing confirmed safe air test. The workers were in suits, masks and had ASD machines running very professional and highly recommended for any asbestos work! We are very pleased the cleanup was nice, with no debris . I would definitely hire again if needed"
+24
Serving Northfield, OH and surrounding areas
Approved
In business since 1987
Emergency services offered
Warranties offered
"Adam and Nick arrived on time and performed the fan installation quickly and efficiently. The men acted as a team and helped the job to go faster. After seeing how the job went, we asked Adam to look at another project and after hearing his diagnosis and estimate contracted with him to do another job."
+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 2018
Free estimates
Warranties offered
"Type of service was radon gas abatement"
Serving Northfield, OH and surrounding areas
In business since 2020
Free estimates
Emergency services offered
"Very professional and friendly. Answered all my questions patiently. Problem appears to be solved."
+1
From average costs to expert advice, get all the answers you need to get your job done.
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.
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A home inspection is an investment in your property's health and longevity. Discover why a home inspection is important even if you don’t plan to sell.
