This guide provides an overview of measures you can implement to avoid or mitigate impacts of extreme weather events that can cause flooding before they occur. When properly designed and installed, appropriate floodproofing measures will reduce the likelihood of flood damage to your home and can reduce the cost of repair if damage does occur. However, depending on specific conditions or variables (such as building location or topography), floodproofing methods may not guarantee your home will be completely protected from the effects of flooding.