Wood fences fall apart and have to be replaced typically every 8-10 years. Block fences built correctly will outlast your home. Today block comes in many styles, colors and textures reducing that old style "industrial" look. Although block fences cost a bit more initially, they end up saving money over time and add better return value on your home. A block fence will provided a sound and wind barrier, pets cannot dig under or break through and better secure against trespassers.