Window panes that are filled with dirt or pollen are breeding grounds for small insects looking for places to birth their young and find food. Medium-sized insects, like spiders, will start to creep around your window preying on the smaller insects, and on and on it goes. Before long, you’ll see a graveyard of small dead insects and a nice, tidy spider web in a corner of your window. By pressure washing your windows regularly, you’ll decrease your chances of acquiring bug-infested windows. It’s the same with gutters, debris-filled gutters will attract pests and if there is water standing still in them, it will attract mosquitos. Neither of which you want hanging around your home or business. Pressure washing your gutters regularly can keep the pests away.