Gutter running just under the roof line of your house is one of the first lines of defense against water getting into your home, it is vital that you keep the gutters in good condition. If your gutters are damaged, you should replace them before more problems arise. Replacing gutters is relatively straightforward; however, you will need to be careful because of the heights that you will be working at.
Remove the existing guttering by snapping it out of the supports. If the supports are metal hangers, take extra care due to their weight. If the hangers holding the guttering in place are damaged, remove them by removing the screws that hold them in place with a screwdriver or, if they are too rusted to remove that way, by cutting them with a hacksaw.
Replace any gutter hangers that you had to remove by screwing in new ones. You will need to drill new holes to screw into; be sure to fill in any old ones to prevent water from seeping in through them. An all-purpose masonry filler will be adequate, as long as you make sure that the hole is completely filled. The gutter hangers must be no more than 2 feet apart along the length of the whole gutter, but remember to leave room at the ends for the gutter caps.