HouseWashing refers to the process of cleaning the exterior surfaces of a house, such as the walls, windows, and roof, to remove dirt, grime, mold, mildew, and other buildup. This can be done using various methods, including pressure washing, soft washing, or hand washing, depending on the type of surface and the level of dirtiness. Regular house washing helps to maintain the appearance and integrity of the home's exterior and can also prevent damage and prolong the life of the building materials..