Before the scrubdown, protect nearby plants by misting their leaves and saturating the surrounding soil with water, pulling them away from the house, and shrouding them in fabric drop cloths. (Plants will cook under plastic.) Lay more drop cloths along the base of the walls to collect any falling paint debris. Walls should be wet down before getting scrubbed, then washed with a gallon of water mixed with 1 cup chlorine bleach and 1 cup of either a concentrated, phosphate-free cleaner, such as a trisodium phosphate (TSP) substitute, or Jomax House Cleaner. Working in sections, from the bottom to the top, will avoid streaks. Be sure to rinse walls well before the solution dries. Wood siding and trim should be ready to paint after a day or two of dry weather.
Trees, bushes, and ornamental shrubs can also get in the way of your painting. Prune any branches that hang over the house or brush up against walls. Evergreen trees and tall bushes growing close to the house can be wrapped with canvas drop cloths. Tie one end of a rope around the trunk at least halfway up. Pull the top of the tree out and away from the house, and tie the other end of the rope to a stake placed farther out in the yard. Cover smaller shrubs, flower beds, sidewalks, and driveways with drop cloths to protect them from paint drips and spills.
The cost to paint the exterior of your home will vary depending on the size of your home, the condition of your siding, type of paint used and other factors. The average cost for labor and supplies ranges between $1,800-$3,800 and it may cost $6,500 or more for a large, custom project. In addition, you may need to pay more if there is damage to your siding or other challenging aspects of your job.