Radon mitigation/reduction systems when medium results are 4.0 pCi/L are higher. Iron Dog is a state licensed (RC230) radon mitigation company. Our state license requires us to visit your home and design a radon mitigation system tailored to your home. The system will capture the radon gases and re-route the radon gases from underneath the home to the exterior of the home above the roofline. Iron Dog will guarantee to reduce the radon levels to 3.9 pCi/L or lower. The manufacturer’s warranty on the radon fan is 5 years and the warranty on the workmanship of the system is one year. A post mitigation test is included in the price of the mitigation system. The test will start 24 hours after the system is installed and will run for 48 hours.