The answer to 'how to prevent fumigation' is to focus on effective pest prevention and control measures. This involves regularly inspecting your home for signs of pests, sealing entry points, and using integrated pest management (IPM) strategies to eliminate infestations without the need for fumigation.
IPM uses a combination of physical, cultural, biological, and chemical controls to target pests at their source. This includes things like using caulk and weather-stripping to seal cracks and crevices, removing food sources and clutter that attract pests, and using targeted pesticides or traps as a last resort. Regular professional pest inspections can also help identify and address issues before they become severe enough to require fumigation.