*The Angi rating for Radon Detection And Reduction companies in Crystal City, 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 Crystal City, 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 02, 2026
Serving Crystal City, 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 Crystal City, MO and surrounding areas
Approved
In business since 2011
Free estimates
Credit card accepted
"Rob does a great job: very thorough, very informative."
Serving Crystal City, MO and surrounding areas
In business since 2011
Free estimates
Emergency services offered
"Great job at mitigating my Radon issues"
Serving Crystal City, 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 Crystal City, 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 Crystal City, MO and surrounding areas
Free estimates
Credit card accepted
"It went great! They set up a system in my parent's house and they mitigated the radon down to a save level. They did a test before and after, and I was satisfied with the results. Proper Environmental did a thorough job and would recommend this company to anyone!"
+3
Serving Crystal City, MO and surrounding areas
In business since 2008
Free estimates
Credit card accepted
With over 33 years of experience as a Safety Consultant, Certified Safety Consulting, LLC is who you need to take care of your home. We handle everything from the initial consultation to making sure your property looks perfect every single time. We will always treat your property as we would treat our own, and you will be surprised how simple and easy our team will make the whole process seem. Give our team a call today. We're looking forward to working with you!
Serving Crystal City, MO and surrounding areas
In business since 2019
Free estimates
Emergency services offered
"It went great they were very professional and very knowledgeable."
+43
Serving Crystal City, MO and surrounding areas
In business since 2017
Free estimates
Credit card accepted
Our inspectors are proudly certified through the American Society of Home Inspectors (ASHI), So, when you are ready to commit to making the most important investment of your life, we will assist you in making informed decisions about the condition of your home.
Serving Crystal City, 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!
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 St. Louis, MO, depends mostly on the type of system being installed. Use this guide to learn about your options.
Find out the average radon testing cost in St. Louis, MO. Learn what you can expect to pay for local testing services and keep your home safe from harmful gas.
The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
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.
