If you don't know much about roofing (like me!) try to get quotes as many c ontractors as you can. You'll see the ones who are really professional give you a more detailed quote (in writing). You should take everything down in writing - the materials used, exactly what they are going down, the time i t will take and the warranties they provide. For instance, when Champion Wi ndow did my roofing they gave us an upfront coverage on the entire roofing system for 50 years. They have certified installers, too. Check out their s ervices on the BBB or something. You should also ask for references and cal l them up to see if they had a good experience with the contractor.