I have a bedroom that had wallpaper on the bottom 1/3rd of the wall down to the carpet. I removed the wallpaper but that part of the wall doesn't have texture. The top 2/3rds of the wall has a knockdown texture. I've called this handyman service place to get a free estimate on how much it would cost to have them spray a knockdown texture where the wallpaper use to be. Does anybody know how much I should expect this estimate to be?