You need to remove the old caulking.
Rain gutter corner leaking.
Cut the caulk with a utility knife.
You re wise to address leaking gutters before disrepair causes costly damage to your home.
Leaking at the corners may be a sign of standing or accumulating water.
Ask your third guy to use butyl sealant or a tar based asphalt sealant and spread it at least 1 past the corner on each side.
To make sure that you have completely repaired your gutter pour water down your gutter then check if there is water leaking from the crack.
You first need to clean your gutters thoroughly.
When they fail to do.
You can check yourself.
The purpose of all rain gutters is to move water away from the base of your house.
Also have him check to see if the eavestrough has sufficient slope to allow water to flow quickly toward the downspouts.
If water is leaking where the gutter and downspout jointly connect repair the joint connection.
Corners are the places where leaks will most likely form.
The bond will not be permanent and the leak will eventually return.
Second story gutter corner leaks might not be easy to spot from the ground.
If the putty completely solidified water should not be able to go through it.
Repair leaking joints with silicone caulk.
Pull it off the gutter with your fingers or a pair of needle nose pliers.
If you notice that there is still water leaking add putty on the area of the gutter leak.
Why gutter corners are troublesome.
One reason is because all corners must consist of at least two pieces of guttering that are affixed together.
Remove the old silicone caulk from the joint connection.