I have a folder with seventy-three bids from various roofing companies, which I have collected since about 1983. Some bids were offered, some were asked for. Most are specific and clear about how the roofing work will be performed.
Unfortunately, many are quite vague. A few basically say "We will do your roof for this price," with virtually no explanation of the components to be used or mention of any labor warranty. What astounds me is how many of these so-called 'Roofers' actually get roofing jobs!
Labor warranties range from one year to the life of the roof. But that's just the start of what you need to know about roofing bids.
Avoid the Cowboys! Do your homework. Or let me do it for you. Hire me to sort out the wheat from the chaff.