Testing for Radon in STL

Bob Wahl
Bob Wahl
Published on December 15, 2017

testing for radon st. louis

In this episode, we continue with Part 2 our 4- Part series on radon in the St. Louis area. We talk again with Tom & Cherie of St. Louis Radon Test and Mitigation to talk about testing for radon in the STL area and to find out when radon tests should be performed, how radon testing is done, and how much radon testing costs.

Read Part I – What is Radon? 

Often when people first hear about radon, they want to get their home tested. Most commonly, homes are tested for radon during a real estate transaction.

St. Louis Radon Test and Mitigation uses a radon monitor that measures 48 hours worth of data. It records the hourly average of radon moving through the home. If the results at any time reach 4.0, they will look into mitigation systems for that property.

How can one ensure the best radon test results?

When testing for radon the home must be in what is called “closed-house condition,” which means all doors and windows must be closed 12 hours prior to testing. If the house has any mitigation systems in place, they must remain on.

The test is supposed to represent what normal conditions would be in the household throughout the year, for instance, the house would usually be empty during work hours. Residents may come and go as usual.

When are the results ready?

St. Louis Radon Test and Mitigation gets the results as soon as they come to retrieve the monitor from the house being tested. They can key into the device and show the homeowner the radon levels right there on site.

There are also passive testing kits available at the local hardware store for $20-$30, or for free on the State of Missouri’s Health website. These kits are placed on the floor of the basement and only give one result, not the full range of the 48 hour monitor. Also, they must be sent to an independent laboratory so the results take more time.

What are the benefits of testing for radon?

Unfortunately, there is not a lot of awareness about the dangers of radon. Most testing for radon is done during real estate transactions, which means those who haven’t tested their home and have already lived in it for years or decades will not know until it’s too late. Even if there are lower radon levels, the length of exposure increases the risk of lung cancer. It’s important to know what the radon levels are in your home to ensure the health of you and your family.

Get Radon Testing in STL

Contact St. Louis Radon


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