Thanks for the suggestion Whale. There’s not much to eliminate, there’s little other plant in the building. We’d since found out the refrigeration gear is bolted to the building walls, and installed without any noise insulation or noise assessment, and as the noise has a semi regular on/off half hour cycling, it was an obvious culprit. Seems to also be a maintenance/age issue too as it didn’t start until after we’d been here for about six months or so. The butcher says that his units aren’t noisy at all, and in any event, the sound could not be travelling to where our room is. Absent some sort of formal assessment/determination, he refuses to accept that that could happen. There was a bit of a misunderstanding in earlier posts, we’ve always owned the place While the noise is at a level that isn’t loud, it’s loud enough and constant enough to be audible at nights during it’s on cycle. We also have a spare bedroom away from the other one, so that’s been an option.
