*The Angi rating for Radon Detection And Reduction companies in Washington, MO 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 Washington, MO 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 June 22, 2026
Serving Washington, MO and surrounding areas
Approved
In business since 2001
Free estimates
Warranties offered
"Jason was very professional and we are very happy with the results."
+1
Serving Washington, MO and surrounding areas
Approved
In business since 2011
Free estimates
Credit card accepted
"Rob does a great job: very thorough, very informative."
Serving Washington, MO and surrounding areas
In business since 2011
Free estimates
Emergency services offered
"He was very professional and courteous. He brought a radon gas monitor in my home to test radon levels and he said that everything was okay. And I didn’t have a problem with radon."
Serving Washington, MO and surrounding areas
In business since 1988
Free estimates
Credit card accepted
"Overall everything was pretty good. I felt the installation could have looked much cleaner but it is fine. I still haven't re tested to see what my radon levels are now."
Serving Washington, MO and surrounding areas
In business since 2023
Free estimates
Small jobs welcome
"I used Scope Environmental recently to test floor tile and the underlying mastic to determine if either contained asbestos. I selected Scope because Jeff was very responsive, professional, independent of the abatement companies and his price was competitive. Jeff suggested testing both the tiles and mastic. The tiles tested positive for asbestos but the mastic contained no asbestos. As a result, I saved considerable expense by abating the tiles only and not the mastic so I also used Scope again for the post abatement air testing rather than the abatement company. I would hire Scope again for material and air testing for asbestos, mold or any other potentially toxic materials."
+10
Serving Washington, MO and surrounding areas
In business since 2005
Free estimates
Mid MO Inspectors will provide you or your business with a full service approach to all your inspection needs. Please feel confident in contacting Mid MO Inspectors for your next inspection.
+5
Serving Washington, MO and surrounding areas
In business since 1980
Credit card accepted
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and 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! Book with us online or feel free to give us a call today!
Serving Washington, MO and surrounding areas
In business since 2016
Free estimates
Credit card accepted
"Very professional, clean and neat"
+7
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.
