Water Main Repair in Brooklyn

Water Main Repair in Brooklyn, From the City Main to Your Meter

In Brooklyn, as everywhere in the city, the water service from the main in the street to the meter in your building is yours to maintain. When it leaks, we find the leak first, then repair the section or relay the whole line in copper.

Brooklyn Water Main Repair and Replacement

Lady Liberty crew with a Case backhoe excavating the sidewalk and street to relay a water service line from the city main
Lady Liberty crew and Case backhoe working in a residential street on a water main replacement, with cones and a saw cut

Brooklyn Water Lines, Block by Block

Older Brooklyn row houses and brownstones often still have their original water service, and in a building from before 1961 that can be lead. The meter is usually in the cellar, just inside the front wall, and the line runs from the curb valve under the sidewalk to reach it.

Newer buildings have copper, which lasts, but a bad joint, settling soil or a hard winter can still open a leak. Either way the job starts at the curb.

Signs Your Water Line Is Leaking

  • Water at the curb or sidewalk that does not dry after a few days without rain
  • Low pressure through the whole building
  • A water bill that jumped for no reason
  • A hiss under the sidewalk
  • Cloudy or rusty water
  • A leaking curb valve

Whose Line Is It, and What a DEP Notice Means

The water service from the city main to your meter belongs to the property owner, including the tap on the main and the curb valve under the sidewalk. When DEP finds a leak on it, the owner gets a 3-Day or 10-Day Notice, and the clock starts on the date printed on the paper. See DEP notices and compliance.

Repair or Relay?

A repair is usually enough when

  • There is a single leak on a copper line in otherwise good condition
  • Pressure is normal everywhere except near the leak
  • The line has not failed before

Relay the whole line when

  • The pipe is lead or galvanized: patching it leaves the rest in the ground
  • Leaks keep coming back after repairs
  • Pressure is low throughout the building, or the water runs brown
  • The building needs a larger service

More on NYC water main repair and NYC water line replacement.

Lead Service Lines

New York City stopped allowing lead service lines in 1961, so a building older than that may still have one. If yours does, we replace it in full, in copper, from the city main to the meter, with a new no-lead brass curb valve. Replacing half a lead line leaves the other half in the ground.

How a Brooklyn Water Main Job Runs

  1. Locate the leak. Before anything is dug, so the excavation goes where the problem is.
  2. Permits and mark-out. We file with DEP, pull the DOT street-opening permit, and call in the utility mark-out.
  3. Open the street or sidewalk. On brownstone blocks the new line usually enters through the front wall into the cellar, where the meter is.
  4. Repair or relay. Type K copper and no-lead brass fittings, tapped to the city main where a new connection is needed, under the licence of Master Plumber #2389.
  5. Pressure test and inspect. Before anything is backfilled.
  6. Restore. Backfill, then the sidewalk, curb, street or yard put back.

The digging is the quick part. The permits set the calendar.

From Recent Water Main Jobs, in Our Customers' Words

Our customers took these photos on recent water main jobs in New York City and posted them with their Google reviews.

Two crew members excavating beside a brick stoop to replace a water service line, with the soil on a tarp
Customer photo. Replacing a water main pipe, with the soil kept on a tarp to protect the pavers.
New concrete sidewalk panel poured around a curb box cover after a water service relay
Customer photo. The sidewalk restored after a water service relay.
Case backhoe and crew opening the roadway to install a new water pipe to a house
Customer photo. Opening the street to install a new water pipe into the house.
Crew member setting a valve box at the curb during a water service relay
Customer photo. Setting the valve box at the curb on a water service relay.

“Lady Liberty was hired to excavate street and sidewalk as needed to relay a 1” domestic water service from the existing tap on the city main to inside the building.”

Chris W., Google review

“The Lady Liberty crew came on time with lots of excavation equipment, explained their work plan to me and cautiously worked throughout the day to complete the installation of the new water pipe into my house. Hard working crew, left the street and sidewalk repaired and clean as was before.”

Nick K., Google review

Read all our Google reviews

Where We Do Water Main Work in Brooklyn

Our yard is at 140 50th St in Sunset Park, so south Brooklyn is close: Sunset Park, Bay Ridge, Dyker Heights, Fort Hamilton, Bensonhurst, Borough Park, Greenwood Heights, Windsor Terrace and Kensington.

We work across Brooklyn: Williamsburg, Greenpoint, Bushwick, Bedford-Stuyvesant, Crown Heights, Prospect Heights, Clinton Hill, Fort Greene, Downtown Brooklyn, DUMBO, Brooklyn Heights, Boerum Hill, Cobble Hill, Carroll Gardens, Red Hook, Park Slope, Gowanus, Sunset Park, Bay Ridge, Dyker Heights, Bensonhurst, Borough Park, Flatbush, East Flatbush, Flatlands, Canarsie, Brownsville, East New York, Cypress Hills, Ocean Hill, Kensington, Midwood, Gravesend, Sheepshead Bay, Manhattan Beach, Brighton Beach, Coney Island, Marine Park, Mill Basin, Bergen Beach, Georgetown.

We also work in Queens, Staten Island, the Bronx and Manhattan.

Brooklyn Water Main FAQs

Who is responsible for the water line to a Brooklyn building?

The owner, from the tap on the city main, through the curb valve under the sidewalk, to the meter in the building. DEP maintains the main in the street.

How do I know the leak is on my side?

If DEP has sent a 3-Day or 10-Day Notice, it has found a leak on the owner's side. Without a notice, a wet patch at the curb that does not dry, low pressure and a jump in the bill all point to the service line. We locate the leak before anything is dug.

Can you help with a DEP 3-Day or 10-Day Notice?

Yes. We find the leak the notice is about, file the permits and make the repair. See NYC DEP notices and compliance for how the notices work.

My street was just repaved. Can you still open it?

Sometimes. The city treats recently resurfaced streets as protected: opening one needs DOT approval, comes with stricter restoration rules, and some work has to wait. We check a street's status before we quote, so you know before anything is scheduled.

Our Brooklyn brownstone has a lead service line. Do you replace all of it?

Yes. We replace it in copper from the city main to the meter, including the curb valve. Replacing part of a lead line leaves the rest in the ground, so we quote the full run.

Where is your yard?

At 140 50th St in Sunset Park. We work across all of Brooklyn, and south Brooklyn is closest.

Water main trouble in Brooklyn? Call (718) 965-3500. A person answers, 24/7/365.

Sewer trouble instead? See sewer repair in Brooklyn.

Emergency Sewer and Water Main Service, 24/7

A broken water main or sewer backup in Brooklyn escalates fast — water surfacing in the roadway, a burst service line under the sidewalk, or wastewater rising into a basement. A person answers the phone after hours and overnight, and a licensed crew is dispatched across Brooklyn for emergency water main break and sewer repair, 24/7.

Call (718) 965-3500 Message Us