Radon Mitigation Elgin provides professional radon testing and mitigation services for homeowners throughout Elgin and Kane County, Illinois. Illinois is one of the highest-risk states for radon exposure, and Kane County homes are frequently tested above the EPA's safe action level of 4 pCi/L. We install EPA-approved sub-slab depressurization systems that reduce radon levels quickly and permanently. Our licensed technicians serve Elgin, South Elgin, Carpentersville, and surrounding communities. Protect your family radon is the #2 cause of lung cancer in the U.S.