*The Angi rating for Radon Detection And Reduction companies in Calmar, IA 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 Calmar, IA 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 February 11, 2026
Serving Calmar, IA and surrounding areas
Approved
In business since 2020
Free estimates
Warranties offered
"Installed in timely manner. Have to wait on radon test to see if it works."
Serving Calmar, IA and surrounding areas
Approved
In business since 1989
Free estimates
Warranties offered
"This job was completed efficiently and professionally. A design specialist came to test and measure every detail for the project. The crew arrived with everything needed for the job. They worked very hard to install Waterguard in the concrete floors inside around the foundation to the sump pump basket. They also installed Geo-lock anchors to support a block wall that was bowed. This company has 36 years in business and provides excellent results and professional customer relations. Call Amer. Wtrwrks for a free estimate. You will not be disappointed. A wise investment of $11,270."
+156
Serving Calmar, IA and surrounding areas
In business since 1988
Free estimates
Credit card accepted
"They did a great job with the installation and made sure the Radon was under the level it needed to be. He had to make a couple of trips to make that happen but was very polite and profession through the whole process."
Serving Calmar, IA and surrounding areas
In business since 2020
Free estimates
Small jobs welcome
"Luis was very polite and professional! He explained the issues so I could understand. I would absolutely recommend him to others!"
+11
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.
