*The Angi rating for Radon Detection And Reduction companies in Jefferson Valley, NY 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 Jefferson Valley, NY 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 October 11, 2026
Serving Jefferson Valley, NY and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"Quick response to request for quote, performed radon test as scheduled and emailed results quickly."
Serving Jefferson Valley, NY and surrounding areas
Approved
In business since 2015
Free estimates
Customers say: Quick response
"Explains everything and very responsive to questions"
Serving Jefferson Valley, NY and surrounding areas
Approved
In business since 2018
Free estimates
Credit card accepted
"Doug helped us solve a radon air problem that other radon specialists were not able to help with. He goes the extra mile and really cares. He's fair and honest and works hard. We would not call anyone else but Doug!!"
+2
Serving Jefferson Valley, NY and surrounding areas
Approved
In business since 2014
Customers say: Quick response
"Olivier was terrific. He was incredibly thorough and left no detail out of his inspection or his report. He took the time necessary to inspect all elements of the inside and outside of the home, he was patient in explaining what he found, and he was able to put all his comments within a helpful perspective. I would recommend him 100% and would use him again without hesitation."
+18
Serving Jefferson Valley, NY and surrounding areas
Approved
Super Service Award Winner
In business since 2025
Free estimates
Small jobs welcome
"The helped insulate the floor in an extension of the home. The floor used to be ice cold and actually froze my heating pipes! The floor is now the same temperature as the rest of the walls and is much more comfortable in winter!"
Serving Jefferson Valley, NY and surrounding areas
Approved
In business since 1987
Free estimates
Emergency services offered
"Men came earlier than scheduled,went right to work,and finished the job in about an hour. They were friendly and professional,answering my questions,and cleaning up afterwards.I highly recommend them.The price was almost 5 times less than the other company I got an estimate from. Highly satisfied.
"
Serving Jefferson Valley, NY and surrounding areas
In business since 2018
Free estimates
Warranties offered
"John M. was courteous, timely, and professional in his inspection. He was upfront about the issues -- whether they are serious or minor, rare or common, and whether more specialized input is required. His written report was very well done and will serve as a great home guide for us in the future after we move in. Thank you!"
+7
Serving Jefferson Valley, NY and surrounding areas
In business since 2018
Free estimates
Emergency services offered
"Mike is absolutely amazing. We wanted our basement air tested so we can safely work there and he did all the tests and advised us on a number of things that have indeed greatly improved the air quality. He also volunteered to take a look through our house and he identified mold in our bathroom that I hadn't even seen! He told us exactly what to do to get rid of it and it worked. I highly recommend Mike."
Serving Jefferson Valley, NY and surrounding areas
In business since 1988
Free estimates
Credit card accepted
"They are honest, as they told me upfront, not licensed for Radon remediation, only testing in Putnam County."
Serving Jefferson Valley, NY and surrounding areas
In business since 2017
Credit card accepted
"Exceptional service from a well groomed, uniformed technician ..:very honest And knowledgeable ."
+2
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.
