Commercial sewer replacement in NYC presents unique challenges including larger pipe sizes, higher flow volumes, grease trap requirements, and the need to minimize business disruption. Commercial projects typically cost $15,000-$75,000 depending on the scope. Key considerations include scheduling work during off-hours, maintaining temporary sewer service during replacement, coordinating with multiple city agencies, and ensuring compliance with commercial building codes. Sewer & Water Pros has extensive experience with commercial sewer projects for restaurants, retail stores, office buildings, and multi-family residential buildings throughout NYC.