Custodian Engineering

Engineering keeps the city standing. Custodian Engineering specializes in the quiet calculations that ensure buildings, bridges, and infrastructure remain safe and functional. From structural assessments to mechanical system designs, their work touches nearly every block in Upper Manhattan—though most people only notice when things go right. You’ll find their office at 499 W 133rd St, a stretch of the neighborhood where pre-war walk-ups meet modern renovations, and where the hum of daily life depends on precision behind the scenes.

Need a permit drawing, a load analysis, or a feasibility study for a brownstone retrofit? Their team handles the paperwork and problem-solving that keep projects moving forward. Reaching them is simple: dial (212) 368-9416 to discuss timelines or requirements. For those mapping their route, directions can be found here. The area around 133rd Street moves at its own pace—less tourist rush, more local rhythm—but the work done here supports the whole borough.