I had a leak in my roof, that was causing major damage.  No matter what I did to the roof (including replacing), the leak continued.  Another person came out to look, and said it was because nobody checked the chimney.  He put a gutter around the stone chimney and I have had no leaks since!
After a full year of trying to get a leak fixed, I got help from a neighbor's roofer, who "knew a guy."  He said the guy didn't work on roofs, so I was confused!
user
That makes no sense.
assistant
Exactly!  The roofer told me that since I replaced my roof and the leak was still there, the problem had to be my fireplace chimney.  He said stone chimneys often develop leaks.  As it turns out, this chimney guy fabricates a type of gutter for chimneys to keep the water from running down the rock.  For $300 he made and installed the "gutter" on site, and I have had NO leaks!
user
That seems like a good price.
assistant