Conservation cleaning in the small and intimate surroundings of Emery Walker’s House at 7 Hammersmith Terrace soon becomes quite personal. At the end of a long, careful and therefore tiring day there is the temptation to look up at the severe, but kindly Victorian demeanour of Emery Walker above the fire place and ask, ‘ Well, what do you think? Have I missed anything?’This is certainly no vast pile calling for armies of conservationists at considerable cost. Indeed, cramped for space and…