[Brad Townsend]

Thanks for the input Hoosier Daddy. I wondered about the fact of just scuffing the old paint and using it as a primer because if it's been there almost 30 years it may last many more. But what about the areas that are bare aluminum if they are not etched or maybe just a rough sanding finish to give the paint something to grab on to. You would think that if these guys have been in business  for years they must be doing something right. It is confusing to see the huge difference between prices and quoted time to do the job.