I have done this myself on our back patio. It is pretty easy, but the product you use is important. The first one I tried said it was a medium brown, but it turned out grey...Had to return it. The second one looked too dark brown in the bottle and on the picture on the bottle, but went on perfect. So make sure you test the color on a small spot first. Also there is quit a bit of overspray, so make sure that what you don't want stained, gets covered. It's pretty easy to do yourself, and can save a lot of money if you are patient.