If any part of your cut reaches into the public right-of-way, the street and sidewalk side of your property, the city's Permits and Mapping Division is the office that issues permits for that work. Its list names construction and excavation, dumpster placement, street use for oversized loads and lane closures, but not concrete cutting by name, so whether your job needs one isn't settled until someone asks. When a right-of-way permit is needed, the city wants the contractor's state and city business license numbers, a sketch with dimensions and proof of liability insurance, and a city permit application needs Zoning Clearance from planning before it goes in. Before we schedule anything, we check with the city or county office for your address on what your job needs, and if a permit is called for, we handle the paperwork with you.
We're based in Torrance and work across the cities around it, including Redondo Beach and Lomita, and the cutting calls look much the same wherever we go. Most come from homeowners making room for a drain or pipe under a garage floor or cutting out a cracked piece of driveway, with some small business and property owners who need a trench cut or a row of holes cored. Plenty of the slabs we cut are older ones nobody has drawings for, which is why my first question is always what's under there.