Sealing Cracks in a Basement in Thompson, CT

This homeowner in Thompson, CT called us hoping to install a radon mitigation system in her home. Her radon levels were, on average, 8-10 pCi/L. This is much higher than the EPA's radon action level of 4 pCi/L. This was also a new home, that she had just purchased -- and she wanted to ensure that this was taken care of as soon as possible. When our certified radon measurement specialist came out to evaluate the home, he noted that there were several cracks in the floor. Cracks in a basement need to be sealed if you want to mitigate radon exposure. That is because radon can come through the cracks and into the home, circumventing the radon mitigation system.

We were able to help this customer. In addition to the fan replacement, we sealed the cracks in her basement floor. We lined the cracks on either side with painters tape. We then ensured the area was clean. After that, we went in to fill and seal the cracks using caulk. This prevents radon from entering the basement through them -- making sure that it is vented out using the mitigation system. This homeowner's mitigation system can now keep their radon levels as low as possible!