Yes I m pleased with how the stairs look - the glass and treads should be going on next week all being well. Cost wise they were nt too bad - the timber frame company put them in when it was erected (there are a few steels due to cantilever floors etc) and they charged £1200. Tiling the wall behind them has probably cost me just as much though!   Thanks for the heads up on the mvhr plenums, will get them cut off before skimming.