Should I repair or replace my garbage disposal?

Repair a leak at the sink flange or at the hose and drain connections, and clear jams yourself. Replace a disposal that leaks from the bottom or the body of the unit, at any age, because the internal seals have failed and no part fixes it. If a disposal past about 8 years needs anything beyond clearing a jam or fixing a leak at a connection, replace it.

Why is my garbage disposal humming but not working?

Something is jammed. Turn off the wall switch and unplug the disposal or switch off its breaker, then turn the hex socket in the center of the bottom back and forth with the hex wrench that came with the unit until it moves freely. Pull the object out with tongs. Never put your hand inside a disposal.

Why won't my garbage disposal turn on?

Press the red reset button on the bottom of the unit. It pops out when the motor overheats. Then check the breaker, and the GFCI outlet if it plugs into one. If it still will not run with power confirmed and no jam, the motor has likely failed and the disposal should be replaced.

What does a new garbage disposal cost in 2026?

A new 1/2 to 3/4 horsepower disposal is $250–$700 installed, including removing the old one. A plumber's service call for a minor repair, such as resealing the sink flange or a connection, is $150–$300.

Repair or replace a garbage disposal?

A garbage disposal that hums, stops, or will not turn on is usually jammed or has tripped its overload, and you can fix both yourself in a few minutes. The decision to replace turns on where it leaks and how old it is. A disposal leaking from its own body is done, at any age.

Check the cheap causes first

Cut the power before you touch anything: turn off the wall switch, and unplug the disposal or switch off its breaker. Never put your hand inside a disposal.

It hums but does not spin. Something is jammed. Most disposals have a hex socket in the center of the bottom. Turn it back and forth with the hex wrench that came with the unit until it moves freely, then pull the object out with tongs.
It does nothing at all. Press the red reset button on the bottom of the unit. It pops out when the motor overheats. Then check the breaker, and the GFCI outlet if it plugs into one.
It runs but the sink will not drain. The clog is usually in the trap or the drain line past the disposal, not in the disposal itself.
A new disposal and the dishwasher will not drain. The knockout plug inside the disposal's dishwasher inlet may never have been removed.

Repair or replace by where it leaks

Usually worth repairing:

A leak at the top, where the disposal meets the sink. The sink flange needs new plumber's putty, or its mounting ring needs tightening.
A leak at the side, at the dishwasher hose or the drain pipe. Tighten the clamp or bolts, or replace the gasket.
A jam or tripped overload that clears and stays cleared.

Usually worth replacing:

A leak from the bottom or the body of the unit. The internal seals have failed or the grinding chamber has corroded through. No part fixes it.
A motor that will not run after you have cleared the jam, pressed the reset, and confirmed it has power.
Jams or resets that keep coming back on an older unit.

The age test

Most garbage disposals last about 8–15 years. Repairs inside the unit rarely pay: a replacement costs little more than a plumber's visit to open up the old one. If a disposal past about 8 years needs anything beyond clearing a jam or fixing a leak at a connection, replace it.

If your house is on a septic system

A disposal sends food solids into the septic tank. The EPA advises eliminating or limiting the use of a garbage disposal, and says that if you must use one, your tank will need to be pumped more frequently. On septic, replacing a dead disposal is a choice, not a given. See our guide to when to replace a septic system.

What it costs in 2026

Clearing a jam or pressing the reset: free, if you do it yourself.
Plumber's service call: $150–$300, including a minor repair such as resealing the sink flange or a connection.
New disposal, installed: $250–$700 for a 1/2 to 3/4 horsepower unit, including removing the old one.

See our methodology for how we build these bands. Installation runs higher when there is no outlet under the sink, or the drain has to be re-plumbed.

The bottom line

Cut the power, free the jam with a hex wrench, and press the reset before you call anyone. Fix leaks at the sink flange and the hose connections. Replace a disposal that leaks from its body, or one past about 8 years that needs more than a jam cleared or a connection fixed. A new disposal is $250–$700 installed.