Every year gutters will pull away thousands of gallons of water from your house and foundation... as long as they are maintained. It only takes a small amount of debris to prevent the gutter from doing its job, and it's truly amazing what we've found in gutters over the years. A tree next to the house dropping buds in the spring, leaves in the fall, a seagull using your roof as a drop point for breaking shells, sticks from a tree ten miles away that were deposited in the last storm, children’s toys, tools from the roofer or painter, sand and shells. Whether you have cedar, aluminum or copper gutters, they should be cleaned every year.
Each year wooden gutters loose a small amount of the natural oils found in the fiber, drying out and cracking as time goes on. Oiling cedar gutters will preserve the wood, increasing the lifespan of the gutter.