How big is the job amd whereabouts? I know a good firm but they only take on fairly substantial builds and also prefer to work either with an owner who has some build experience or an established architect. They're mainly Fulham based, high attention to detail and absolutely transparent pricing - literally down to each metre of skirting in the quote. They also finish the job. All that said, the most helpful thing I've heard (having done several developments/refurbs) is the best you can hope for in construction is 8/10.