From Surprise to Solution: Tackling High Radon in a Home with Additions

After 15 years in their home, this family was shocked when a radon test revealed fluctuating levels between 10–25 pCi/L—despite having a passive system. Their children’s bedrooms are in the lower level, so health concerns were top of mind. The homeowner had already taken initiative by adding a fan to the passive system, but discovered it wasn’t addressing two key radon chambers in the home’s large rear addition.

Radon Defense Midwest stepped in to design a two-point mitigation system for the addition, along with an ERV for improved air circulation. With thoughtful placement and homeowner collaboration, this project reflects what’s possible when experience, concern, and the right team come together.