Alternatives to fumigation depend on the pest and the level of infestation. For termites, baiting systems or localized treatments can be effective. Heat treatments are a non-chemical option for bed bugs and other pests sensitive to temperature. Biological controls, such as introducing natural predators or beneficial insects, offer an eco-friendly alternative. Regular pest inspections, sealing entry points, and maintaining a clean environment are preventive measures that can reduce the need for fumigation.