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

Emergency sewer backup and sewer line repair in NYC

Sewage coming up a floor drain, tub or toilet. We respond 24/7 in Brooklyn, Queens, Staten Island and Manhattan, clear the line, find out why it happened, and repair it.

Right now: stop using all water in the building, keep people and pets away from the water, do not pour chemical drain cleaners in, and take photos for your insurance company.

How we handle a sewer backup

  1. Find and stop it

    We locate the blockage, whether it is the house trap, the main drain or the line to the street.

  2. Clear the line

    Cable machine or hydro-jetting, depending on what is in the pipe.

  3. Camera inspection

    We run a camera through the line and show you the footage: roots, grease, a sag or a collapse.

  4. Repair or plan the repair

    Spot repair, lateral replacement, or a cleaning schedule, with the required permits handled.

Sewer services

Camera inspection

Shows exactly where and why the line is failing, so you only pay for the repair you need.

Hydro-jetting

High-pressure water that scours grease and roots from the pipe walls, not just a hole through the clog.

House trap repair

Older NYC buildings often have a house trap on the main drain. It is a frequent blockage point and can be repaired or replaced.

Sewer lateral repair and replacement

For cracked, collapsed or root-filled lines between the building and the city sewer, including street work permits.

Backwater valves

A valve that lets sewage out but not back in. Worth considering in low-lying and flood-prone areas.

Monthly monitoring

For buildings with repeat problems: regular camera checks so backups are caught early.

Prevent the next backup

Most repeat backups come from grease, wipes and tree roots. Keep wipes and grease out of drains, and if your building has had more than one backup, a camera inspection will tell you whether the line needs work.

For buildings with recurring problems, our monthly sewer monitoring plan includes regular camera checks and priority dispatch.

Insurance tip

Many homeowner policies exclude sewer backup unless you have a separate rider. Check yours before you need it. We document the cause and damage for any claim.

Sewer repair by borough

Emergency sewer service in every neighborhood we serve.

Brooklyn

ZIP codes 11201–11256

  • Williamsburg
  • Greenpoint
  • DUMBO
  • Brooklyn Heights
  • Cobble Hill
  • Carroll Gardens
  • Red Hook
  • Park Slope

All Brooklyn neighborhoods

Queens

ZIP codes 11004–11697

  • Astoria
  • Long Island City
  • Sunnyside
  • Woodside
  • Jackson Heights
  • Elmhurst
  • Corona
  • Flushing

All Queens neighborhoods

Staten Island

ZIP codes 10301–10314

  • St. George
  • Tompkinsville
  • Stapleton
  • New Brighton
  • West Brighton
  • Port Richmond
  • Westerleigh
  • Clifton

All Staten Island neighborhoods

Manhattan

ZIP codes 10001–10282

  • Financial District
  • Battery Park City
  • Tribeca
  • SoHo
  • Chinatown
  • Lower East Side
  • East Village
  • Greenwich Village

All Manhattan neighborhoods

Sewer questions

What should I do first when sewage backs up?

Stop using water everywhere in the building, keep people and pets away from the water, do not pour chemical drain cleaners in, and take photos for insurance. Then call.

Who is responsible for the sewer line in NYC?

In NYC, the property owner is generally responsible for the house sewer line, from the building out to the connection at the city sewer in the street. The city is responsible for the main.

What is a house trap?

A U-shaped fitting on the main drain, usually in the basement or front of the building, found in many older NYC buildings. It is one of the most common places for a blockage.

Does insurance cover sewer backups?

Many homeowner policies exclude sewer backup unless you have a separate rider. Check your policy. We document the cause and damage for any claim.

How do you find the cause?

With a camera inspection of the line after it is cleared. It shows roots, grease, sagging pipe or a collapse, and we show you the footage.

Sewage coming up?

Stop running water and call. We dispatch 24/7.

646-980-2411

Send a request with photos instead

Call 646-980-2411