The answer to 'how to install gutters' is to first measure the length of your roof and purchase the appropriate amount of gutter material. Then, attach gutter hangers or brackets to the fascia board along the roofline, spacing them every 24-36 inches. Next, snap the gutters into the hangers, making sure they are level and sloped slightly downward towards the downspouts. Finally, install downspouts at the low points of the gutters and secure them to the wall or ground.
It's important to take safety precautions when working at heights, such as using a sturdy ladder and wearing non-slip shoes. Gutters should be inspected and cleaned at least twice a year, in the spring and fall, to prevent clogs and ensure proper drainage.