If your job needs a building permit, it comes from the Town of Winthrop's Building Department, and it has to be issued and posted at the job site before any work starts, so the permit sets the first date on the calendar. The department issues permits to construction supervisors licensed by the state, so ask any contractor you're considering which state licence they hold, and if they work under a trade name, check that they've filed a Business Certificate with the Town Clerk, which stays good for four years. Before we start, we check with the Building Department about the permits your job may need and help you get the paperwork in order.
Most of what moves the price sits under and around the slab, including how much soft dirt has to come out, how much base goes back in, how close the truck can park on a narrow street, and the size, thickness and finish you choose. The schedule turns on the permit and on curing, the days the concrete needs to harden before it takes weight, and you'll get your own figure when I come out for the estimate. We plan jobs the same way in Chelsea and out in Watertown.