person A: After a full year of trying to get a leak fixed_comma_ I got help from a neighbor's roofer_comma_ who "knew a guy."  He said the guy didn't work on roofs_comma_ so I was confused!
person B: That makes no sense.
person A: Exactly!  The roofer told me that since I replaced my roof and the leak was still there_comma_ the problem had to be my fireplace chimney.  He said stone chimneys often develop leaks.  As it turns out_comma_ 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_comma_ and I have had NO leaks!
person B: That seems like a good price.