Having your gutters cleaned every year is very important. If you put off their annual maintenance you are giving them the opportunity the clog and ruin the flow of water. Once gutters become clogged you are leaving them open to over flow into the house and rot away at the fascia boards. They could also build up ice dams in the wintertime which could cause leaks into the home. The longer you wait to clean they the more damage they will cause which will end up making a bigger mess then you bargained for.