Before demolition, our Sacramento general contractor crew walks the kitchen suite and adjacent shafts to understand exhaust and utility paths. We review mechanical rooms, ceiling cavities, risers, corridors, meters, grease interceptors, backflow devices, and boosters, logging gas, domestic water, waste, and vent runs with tie-in points, pipe sizes, shutoffs, cleanouts, ceiling heights, and access limits. Code spacing for appliances, clearances, hood coverage, make-up air, and testing is confirmed upfront so the layout is permit-ready. Field notes translate into practical routes for new supply, waste, grease, make-up air, and isolation valves, flagging where selective openings, coring, or access panels protect existing finishes. Coordination with building management covers surface protection, debris paths, lift use, after-hours access, and shutdown windows to keep neighboring suites operating while work proceeds. This preparation keeps scope, sequencing, and cost grounded in real site conditions instead of assumptions.