1 On average, installing a backsplash can range in price from $13 to as much as $24 per square foot. 2  This will not include the tile and supplies, but is for installation only. 3  For example, a 25 square foot space could cost anywhere from $325 to as much as $600. Depending upon the quality of the tile, the prices can start at $1 per square foot and go as high as $25 per tile. 2  To have a customized backsplash design drawn up for you, some design companies may charge a consultation fee in order to get the job done.