The duration of the radon mitigation process can vary depending on various factors, including the size and design of the structure, the severity of radon levels, and the chosen mitigation method. In general, a typical radon mitigation installation can take anywhere from a few hours to a couple of days. The initial step involves a professional assessment of the property to determine the most suitable mitigation approach. The installation itself usually involves drilling into the foundation, sealing cracks, installing piping, and setting up a ventilation system. The complexity of the installation, such as the number of entry points or the need for additional modifications, can affect the time required. It's important to consult with a qualified radon mitigation professional who can provide an estimate specific to your situation and provide a more accurate timeline for the mitigation process.