Building permits in Boston come from the city's Inspectional Services Department, and whether your job needs one is the city's call. That matters for the schedule, because the city's guidance says work begins after the permit is issued, and starting early can mean paying double the permit cost or getting a building code violation. Some projects also need sign-off from the city's planning and zoning office, from Parks and Recreation when the work is within 100 feet of a park or parkway, or from the Landmarks Commission in a historic district, and each of those can add time. On the contractor side, the state requires Home Improvement Contractor registration for work on an existing, owner-occupied home with one to four units, so check that registration with the state before you sign. If a company works under a trade name, the city's Business Certificate is only a filing for that name, not a general business license.
Before work starts, we check with the city about the permits your job may need and help you get the paperwork in order, so the permit and the pour line up. After that, the price mostly comes down to the size of the slab, how much old concrete and soft fill has to come out, how deep we dig and pack the base, and whether it needs rebar, the steel inside that keeps cracks from spreading apart. Tight access adds hand work on a lot of Boston lots, and the schedule turns on the permit, the weather and the curing time before you can use it. I'll walk the job with you and give you the estimate for your own slab, the same way we do in Somerville and Brookline.