A thorough scrubbing is a must before painting any exterior surface. It removes the dirt and broken-down paint residues that keep fresh coats from adhering and gets rid of mildew that grows on paint in all but the most arid climates. Most contractors clean with pressure washers, but in the hands of someone unfamiliar with the equipment, these can gouge wood, shatter glass, and drive water behind siding and trim. Using a hose, a pump sprayer, and a scrub brush is slower but safer, and just as effective.
If you have two weeks, a ladder and some experience, this makes an excellent DIY project. On most surfaces, it is forgiving of mistakes and easy to work with. Correcting mistakes only adds more time and not much more expense. However, a professional will get it done faster and with a better finish. If you don’t have 2 to 3 weeks to spare, find a professional painter near you today. House Painting Westminster