*The Angi rating for Radon Detection And Reduction companies in Dayton, OR 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 Dayton, OR 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 23, 2026
Serving Dayton, OR and surrounding areas
Approved
In business since 2010
Free estimates
Credit card accepted
"Stu and Tom took care of our radon needs to get our home ready for sale. The communication was excellent. The finished product was fantastic and I’m sure the new owners will love the system. Very fast in and out on a short window of time we had. Thank team. I’d hire again for sure"
Serving Dayton, OR and surrounding areas
Approved
In business since 2002
Free estimates
Warranties offered
"From initial inspection to mitigation was about a week. Technician were punctual and finished within time estimated."
Serving Dayton, OR and surrounding areas
Approved
In business since 2012
Free estimates
Small jobs welcome
Science First. We are experts in our field and we will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business.
Serving Dayton, OR and surrounding areas
Approved
In business since 2024
Free estimates
Credit card accepted
"Nordic Service Group responded quickly to my inspection request and agreed to meet my schedule for the inspection. The inspector showed up on time, actually early, and exceeded my expectation with the inspection report. This is a professional who really knows homes. Why take a chance with anyone else? Steve"
Serving Dayton, OR and surrounding areas
Approved
In business since 1974
Free estimates
Warranties offered
"This work crew of Lupe, Waldo, and Rene did an OUTSTANDING job; this is hard work, these (3) dedicated hombres did an incredible job for us. We are so grateful for these three men. I easily recommend this crew to you, very reliable, honest, trustworthy and friendly. Best in the Business. Muchas gracias amigos!!! We love these guys!"
+38
Serving Dayton, OR and surrounding areas
In business since 2015
Credit card accepted
"Derek was thorough and knowledgeable."
Serving Dayton, OR and surrounding areas
In business since 2013
Free estimates
Credit card accepted
Professional, hard working and customer service driven. We have been in the radon testing business for over 10 years. We are certified by AARST/NRPP, not everyone else is. We would be happy to provide you with the high level of service you deseve!
Serving Dayton, OR and surrounding areas
In business since 1988
Free estimates
Credit card accepted
"This company was great to work with. They had an opening in their schedule and completed the job earlier than expected."
Serving Dayton, OR and surrounding areas
In business since 2020
Free estimates
Small jobs welcome
"Reliable, thorough, and professional. Exceptional home inspection service with clear reporting and great communication. Highly recommend."
Serving Dayton, OR and surrounding areas
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 Portland, OR, 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.
