Any sewer work in NYC requires permits from the Department of Environmental Protection (DEP). The permit process involves submitting an application with engineering plans, paying permit fees, scheduling inspections, and obtaining sign-offs. Sewer & Water Pros handles the entire permit process for our clients. The typical timeline for a standard sewer permit is 2-4 weeks, though emergency permits can be obtained in 1-3 days. You will also need a DOT street opening permit if the work requires excavating in the street. Permit fees vary based on the scope of work and location.