Simply put, rain gutters are the water management system for your home. They are necessary in order to protect your home from its worst enemy - water. Not having gutters, or worse having clogged gutters that direct water where it does not belong, can result in costly repairs.
As uncontrolled rainwater pours directly from the roof to the ground, it causes erosion, weakens the foundation, and can lead to cracks in the drywall and wet basements or crawl spaces. Clogged gutters can also lead to siding damage, wood rot, pest and critter infestation, paint damage, roof damage, fire hazards, icy walkways in the winter, and more.
Standard Gutter Guard has a 10-year "No Clog, No Overflow" warranty that is backed by the manufacturer. Consult the actual warranty for complete coverage details.