Going well! Found the bolts screwed into the wall. Slightly stumped when found they were rusted up, but with a little persuasive work with a hammer, managed bust up the bracket. The chap who built the house seemed to feel it necessary to screw AND cement the lot to the wall. Seems to be coming away with some mighty heaves, but there is a little more plaster coming away at the same time. This job takes some hard graft. Starting to see why they charged £500……..