The plumber's report came in tonight as well, so that's all the reports we need. Lots of detail, and I don't really know what it all means yet but we're learning fast.
Continuing from the builder's omission of the state of the fireplace in his report, it looks like the plumber couldn't get to the fireplace because it was lit (it was 7 degrees outside, so not entirely unreasonable). Very unfortunate though - I'll have to go back to Les the builder and ask him to write up his findings after all, and an approximate cost to decomission the fireplace altogether, and replace with a heatpump instead.
