Open 24 hours, 7 days. Licensed NYC master plumbers.Brooklyn, Queens, Staten Island and Manhattan
GW Mechanical Corp 24/7 646-980-2411

Water and drain service · Brooklyn

Leak detection and water leak repair in Brooklyn

A stain spreading on a ceiling, a neighbor below with a drip, a water bill that doubled. We find the leak in Brooklyn without tearing the place apart, repair it in the same visit, and document it for the building and your insurer.

GW Mechanical Corp finds and repairs hidden water leaks in Brooklyn without demolition. Call 646-980-2411.

Leak detection and water leak repair across Brooklyn

In Brooklyn the leak call is usually "it is coming through the ceiling," and the building is a brownstone cut into apartments or a pre-war walk-up where the plumbing has been patched by six generations of plumbers. We isolate whether the water is from a supply line, a drain, a tub seal or a toilet flange upstairs before anyone opens a wall, because in Park Slope, Bed-Stuy, Crown Heights and Bushwick the dispute over who pays is settled by exactly that finding, and we put it in writing with photos. Galvanized supply lines with pinholes are the other Brooklyn classic, and we find them with pressure testing.

Our shop is at 854 Humboldt Street in Greenpoint, so Brooklyn is home turf: most of the borough is under 30 minutes from the truck.

What we handle

Leaks into the apartment below, the most common NYC leak call

Hidden supply leaks found with pressure testing, thermal and acoustic tools

Drain, tub, shower and toilet flange leaks found with dye tests and camera

Slab and underground leaks located before any digging

One access opening in the right place, not exploratory demolition

Photos and a written report for insurance and the managing agent

Brooklyn neighborhoods we serve

Every neighborhood in Brooklyn, ZIP codes 11201–11256, 24 hours a day.

  • Williamsburg
  • Greenpoint
  • DUMBO
  • Brooklyn Heights
  • Cobble Hill
  • Carroll Gardens
  • Red Hook
  • Park Slope
  • Prospect Heights
  • Crown Heights
  • Bedford-Stuyvesant
  • Bushwick
  • Flatbush
  • East Flatbush
  • East New York
  • Canarsie
  • Sunset Park
  • Bay Ridge
  • Dyker Heights
  • Borough Park
  • Bensonhurst
  • Gravesend
  • Sheepshead Bay
  • Brighton Beach
  • Coney Island
  • Marine Park
  • Mill Basin
  • Gerritsen Beach

See the full Brooklyn service page for every service we offer in the borough, or the leak detection and water leak repair service page for details that apply citywide.

Questions from Brooklyn

Who finds water leaks near me in Brooklyn?

GW Mechanical Corp finds hidden leaks in Brooklyn homes and apartments without tearing out walls, then repairs them in the same visit. Call 646-980-2411.

How do I know if I have a hidden water leak?

Check the water meter with everything off. If it moves, water is leaving somewhere. Stains, musty smells and a higher bill are the other signs.

Can you find a leak in Brooklyn without opening walls?

Usually we narrow it to a small area first with isolation, pressure testing, dye tests, moisture meters, thermal imaging and acoustic equipment, then make one access opening in the right place.

My neighbor in Brooklyn says I am leaking into their apartment. What now?

Call us. We test every fixture, supply line and drain in your unit and determine whether the leak is from your apartment, a riser or the building, with a written report and photos either way.

Do you do leak detection in Brooklyn the same day?

Yes. An active leak causing damage is treated as an emergency, 24/7.

Need leak detection and water leak repair in Brooklyn?

A dispatcher answers 24/7. Tell us where you are and what is wrong.

646-980-2411

Send a request with photos instead

Call 646-980-2411