Brookline's Building Department issues the permits to build, alter or repair a structure, so when your job needs one, the permit sets the start date and nothing gets poured until it's issued. Before you hire anyone, check that they're registered with the state as a Home Improvement Contractor, and if they work under a business name, that they've filed a business certificate where they're headquartered, which for a Brookline company means the Office of the Town Clerk. Before work starts, we check with Brookline about the permits your job may need and help you get the paperwork in order.
Tight driveways and houses set close together mean the truck often can't back right up to the forms, so getting concrete to the spot is part of the plan and part of the price. The rest of the price comes from the size and thickness of the slab, how much soft fill has to come out, whether an old slab needs breaking up and hauling away, and the finish you pick, while the schedule turns on the permit and the curing wait after the pour. I'll give you your own figure when I see the job, the same way I do in Newton next door and in Chelsea on the far side of Boston.