Keeping your gutters clean and your downspouts free of debris is extremely important to the health of your home. Clogged gutters can cause water damage (roof & foundation) and cost home owners thousands of dollars in repairs. Not to mention it can attract insects and rodents.
Experts say that you should clean your gutters 2 times a year, in the spring and fall, but that depends on what kind of trees you have around your house. If you have pine trees, you probably want to do it 3 maybe even 4 times per year. The easy answer is to clean them when they need it.