Anyone can put paint on a wall however, for a result that will continue to look good for years, it is the start that makes the finish.
Abraham Lincoln said “Give me six hours to chop down a tree and I will spend the first four sharpening the axe.”. Similarly a good decorator will spend as much, if not more, time preparing a surface to be painted as actually applying paint or, for that matter, wall paper.
A smooth, imperfection free surface that is prepared to ensure paint sticks to it will stay colorful and fresh looking for longer. When papering, it’s equally important to start with a properly prepared. This is partly to ensure the paper adheres to the wall but also because imperfections under the paper are going to show up as smooth paper sticks to and grips the wall.
So, how can you tell a good decorator from bad from bad? Ask about preparation. One painter may be significantly cheaper than another, but we’d suggest that you don’t dismiss them as “expensive” until you’ve understood how much preparation each will do.