New York City · New York County
Water Line Repair and Replacement in New York City, NY
In New York City the property owner owns the water service line from the city main to the building, so a leak on it is the owner's to repair, even under the street. Many older one- to four-family homes still have a lead service line, and the Department of Environmental Protection publishes a map of service line materials.
- Independent local pros
- Free referral, no obligation
- You approve the price before work starts
What is different about water line repair and replacement in New York City?
A leaking service line here rarely stays a private matter. Water surfacing in the street or sidewalk gets reported, and the Department of Environmental Protection can order the owner to make the repair within a short deadline. Because the line crosses the sidewalk and roadway, the job involves street-opening permits and a Licensed Master Plumber.
If the line is lead or galvanized, replacement makes more sense than a patch: disturbing old lead pipe to repair it can raise lead levels at the tap. Check the city's service line map and request a free lead test kit before deciding, and ask whether any current city program applies to your address.
From the New York City plumbing guide
Lead service lines
Many older one- to four-family homes are still connected to the main by a lead service line, which the property owner owns. The city's Department of Environmental Protection publishes a map of service line materials and offers free lead test kits.
What to check and ask before work starts in New York City
- Look up your address on the city's service line material map
- Ask whether the quote covers the full line from the main to the meter, including street restoration
- Ask who files the permits and how long water will be off
- If you received a notice from DEP, give the plumber the deadline on it
Licensing and permits for water line repair and replacement in New York City
Plumbing and gas work in New York City must be performed by a Licensed Master Plumber or by people working under one, and most work beyond minor repairs needs a permit from the Department of Buildings. You can look up a plumber's license on the Department of Buildings website before work starts.
Keystream Plumbing is a referral service. We do not perform plumbing work or hold a contractor license. The independent plumber you are connected with is responsible for licensing, permits and the work itself.
What the job usually involves
The steps are the same in New York City as anywhere; the local conditions above change how each one is done.
- Confirm and locate
- Mark utilities
- Repair or replace
- Test and restore
Water Line Repair and Replacement questions from New York City
Who pays to fix a water main leak in front of my NYC home?
If the leak is on the city's water main, the city repairs it. If it is on the service line that branches off the main to your building, the property owner is responsible, including the portion under the street. DEP investigates and tells you which it is.
How do I find out if my New York City home has a lead service line?
Check the Department of Environmental Protection's online map of service line materials, and look at the pipe where it enters the building: lead is dull gray, soft enough to scratch shiny with a coin, and not magnetic. The city also offers free lead test kits.
Sources
- Water supply and lead in household plumbing, NYC Department of Environmental Protection
- Licensing and permit information, NYC Department of Buildings
- Lead service lines, US Environmental Protection Agency
Local information reviewed October 1, 2026. Rules and programs change; confirm details with the agency before you rely on them.
More plumbing help in New York City
Water Line Repair and Replacement in other cities
Ownership rules, soil, water and pipe materials make this a different job from one city to the next.
Related guides: Low Water Pressure: Causes and Fixes.
Need water line repair and replacement in New York City?
Call (833) 520-4758. Same-day service is often available; call to check timing.