Radon mitigation systems work by reducing the potential for radon gas to enter a business. This is typically done by installing a system of pipes and fans, which create negative pressure in the basement or lowest level of the building. The negative pressure causes radon that is present in the soil around the foundation to be drawn away from the business and released into the atmosphere through an exhaust pipe. Additionally, sealing cracks in basements and crawlspaces reduces or eliminates pathways for radon to enter a building, as does provide additional ventilation on any windows that are located near soil where radon can gather. Radon mitigation systems can also involve treating the soil around the foundation with additives that inhibit radon gas movement into a structure.

To ensure effective performance, business owners should have their radon mitigation systems regularly inspected by state-licensed professionals. Such inspections involve testing air flow rates and levels of radon throughout a building, checking seals between components and measuring fan performance. If test results indicate high levels of radon in a building, business owners may opt to install additional ventilation fans or further seal penetrations in walls and floors. By taking these steps, business owners can help ensure their buildings remain safe from dangerous levels of exposure to this naturally occurring radioactive gas.

The cost of a radon mitigation system can vary greatly depending on the nature and extent of the work required. Generally speaking, most projects will cost between $1,000-$2,500 with installation labor accounting for 50-75% of the project cost. The remaining costs are associated with materials such as pipes, fans, and sealing products. More complex systems in larger buildings can cost up to $3,000 or more.