What is the best way to touch-up a wall?
A.Touching up a wall is a challenge for professionals and the do-it-yourself crowd alike. First and foremost, use paint from the same can used on the wall. Carefully read and follow the instructions on how to reduce the paint. Next, apply the paint using the same medium it was originally applied with—roller or brush. Try to “feather” the paint from the outside edge of the area you want to touch-up into the centre.