Posted By garyh Without being clever you would need to be "Competent" to carry out the survey and produce the report yourself. I think that you would either have to get trained and purchase or hire measurement equipment before setting off on your task. You may then find that you haven't got a problem! Alternative would be to get a consultant in - and the initial meeting would be free - an experienced person could walk around and get a good feel for if you have a problem or not. You could then decide on how formal and involved your next step is.