Thrasher Basement Systems recently acquired National Radon Defense and now offers both radon testing and mitigation services. The radon testing equipment we use is calibrated annually to ensure accurate readings. Once it has been determined that radon levels in a home are above the recommended levels, a mitigation system is designed specifically for each home. With input from the homeowner, a mitigation system will be designed and installed to effectively reduce radon in the home to a safe level.