Rain gutters are essential for several reasons: Among the reasons for which they are important the following can be listed: Prevent Water Damage: They take water from the basement and footer of your house, walls of your house that would have otherwise posed lots of trouble via water leakage, soil erosion and so many other structural issues. Prevent Mold and Mildew: By this, gutters do not let the water stagnate at or around the walls or in the basements thus reducing the development of the