Gutter corners leaking - what to do?
I had new gutters put on my addition. There are six corners that they angle around, and all the corners leak like crazy in the rain.
I called the gutter company that cleans my gutters twice a year, and the owner told me the corners were all installed wrong. He said the way he does it, he doesn't just make a slightly overlapping miter cut where the gutters meet, then attach them with a single screw and some caulk. (Which is what was done.) He cuts them so they overlap a lot, then screws them in at least four places, and uses silicone caulk to seal them together.
I could hire him to fix the 6 corners (for $100 each, which seems like a lot to me) or I could call back the original installer who would probably just throw some more caulk in; wait for them to leak again; throw some more caulk in..... etc.
On the other hand, a repairman can't add more material if it's been cut away, so I'm not sure what can really be done other than add more caulk and screws. Doesn't seem to be worth $100 per corner.
Any suggestions about the right way to repair these gutters and comments on the cost? I'm in NJ, where things are expensive, but $600 still seems high.