First check for signs of standing water and sagging.
Fixing leaky rain gutters.
If your gutters are leaking the prime suspects are the joints between sections.
Standing water in gutters eventually will rust galvanized steel seams or seep through the seams in aluminum gutters.
However more often then not weeks or even days later the leak returns to the befuddlement of the home owner.
Feather the roofing cement out on the surrounding area to flatten any steep edges.
Remove any screws or connecting hardware at the joint and then disassemble the leaking portion of the downspout.
Tighten up loose gutters.
You may need to remove other gutter or downspout sections near the leaky joint first.
Apply plastic roofing cement over small holes.
One of the most common repairs we complete out in the field is to seal leaky gutters.
Time after time we see the failed efforts of well intentioned diy ers head up the ladder and attempt to silicone and spray their way to success.
If the holes are larger than nail holes use tin snips to cut a strip of flashing the same amterial as the gutter wide enough to fill the area.
Over time rain gutters often start to pull away from the roof allowing water to drip over the gutter sides or between the gutters and the walls.
Bend the strip to fit and embed the flashing in the cement.