In my limited experience, there are really crap, vague surveys and then there are the professional, properly written ones. The first type you generally get from the people you get via the mortgage provider - the ones that do the valuation, but you can 'trade up' to the housebuyers report. These are generally 90% cut and paste jobs with a few details filled in. My last one was so bad they even counted the number of rooms incorrectly! I complained, got my money back and got another one done via a friend's recommended surveyor. Go through a specialist surveyor and get a proper one. It'll cost a hundred quid or so more, but since the vague ones are essentially worthless then it's money well spent. If you need a recommendation, PM me and I'll see if I can dig out the details.