Patches sealants step 1.
Fix leaks in gutters.
Do not use the as seen on tv liquefied rubber in a can sealants that promise the world but in actuality work very.
Check the downspout step 4.
2 clean the joints replace the gaskets.
If clips or brackets hold your gutters check for broken clips and loose or missing screws.
Clean the downspout joints and replace the gaskets step 5.
Apply plastic roofing cement step 3.
Do not apply silicone on top of silicone or on top of the old gutter sealant.
Apply silicone and reassemble.
Water will eventually find its way.
You may need to remove other gutter or downspout sections near the leaky joint first.
If your gutters are fastened with spikes and some spikes are loose or rusted simply hammering the spike back in isn t.
Remove any screws or connecting hardware at the joint and then disassemble the leaking portion of the downspout.
There should be no more than a inch drop in the direction of the downspout.