I'm in the process of getting quotes from local(Spartanburg, SC) contractors for replacing my home HVAC and I have had a very difficult time getting the info that I want in a quote. What I have asked for are Manual J calculations, part numbers so that I know what is being quoted, and to have the quote typed in a professional manner. I have spoken to 4 of the larger companies here and none have given me what I have asked for. All down played the validity of the load calculation and they want to give me hand written figures on the back of a piece of paper with no details. Is this common in the industry or just in my area?