Why do woodpeckers peck at roofs on houses?

Woodpeckers peck on houses for several reasons. They are looking for a mate, so they peck loudly to attract a mate and maintain their territory. They could be pecking on the side of a home looking for insects, this is why it is important to have a pest control program in place. They will also peck holes in your home to build their homes and store their acorns or food. The best way to get rid of them is to either block them by hanging plastic bird netting about 4 inches out from the side of a home, attaching it to the eave. You can also use bright shiny things like flashtape and scare balloons to frighten them away.