How Much Does It Cost to Install Garbage Disposal? (Price Guide)

A garbage disposal grinds food scraps under the sink so they can pass through the drain. Most of the cost is the unit itself, and the rest is the labor to mount it, connect the drain, and wire it. A straight swap of an existing disposal is the cheapest scenario. A first-time install needs more work, particularly if the kitchen has no nearby outlet or switch.

Prices below come from published guides and carry a check date of Oct 11, 2026. This page covers new installation, replacement, and repair.

Motor power decides how well a disposal handles tough scraps. Larger motors cost more but run quieter and jam less often. For a household that cooks regularly, a mid-range motor tends to be a sensible balance. A small unit can struggle with fibrous or dense food waste.

Continuous-feed units run while the switch is on, and you feed scraps in as they run. They are the common choice and cost less. Batch-feed units run only when a stopper lid is in place, which adds a safety layer, since nothing can reach the grinding chamber while it runs. They are often chosen for homes with small children. The tradeoff is a higher price and a slower routine.

Installation labor is relatively short for a replacement and longer for a first-time job.

A handyperson can handle a basic swap, but a first-time install may involve a plumber for the drain connection and an electrician for wiring or a new outlet.

Replacing a faucet while the sink area is open is a common bundle. Permit rules differ by location, and many places do not require a permit for a simple replacement. Check with your local building department before the work starts.

• Motor size. Larger motors cost more.
• Feed type. Batch-feed units cost more than most continuous-feed models.
• First-time install or replacement. A new install may need wiring, a switch, and drain changes.
• Electrical work. If there is no outlet under the sink, an electrician has to add one.
• Plumbing. A double-bowl sink or an older drain may need new fittings.
• Noise features. Extra sound insulation raises the price.
• Dishwasher connection. The dishwasher drain typically ties into the disposal, and that connection must be set up correctly.
• Permits. Some areas require them.

Replacing an existing unit costs less than a first-time install because the mounting, drain, and wiring are mostly in place. A new unit that matches the old mounting system saves labor. If the new model uses a different mount, the installer may need to swap the sink flange as well.

Common problems include jams, clogs, leaks, and a motor that hums but does not spin. Many jams can be cleared with the reset button and a hex wrench, but never put your hand inside the unit. If the housing leaks, replacement is usually the better route, since a leaking disposal cannot be patched reliably.

Guides differ on whether they include only the unit and labor or also wiring, plumbing changes, and permits.

One source reports replacement specifically, while another covers installation more broadly, so the numbers do not describe exactly the same job.

Repair is reasonable for a jam, a worn power cord, or a loose connection. Replace when the unit leaks, the motor has failed, or it jams repeatedly. If the unit is old enough that a repair costs close to the price of a new one, replacement is the better value.

Many homeowners install a disposal themselves, and manufacturers provide step-by-step instructions. The job involves hardwiring or plugging in a unit and connecting drain lines, so a leak or wiring mistake can cause water damage or shock. Always turn off the power at the breaker before touching the wiring. If you are not comfortable with the electrical or plumbing steps, hire a licensed plumber or electrician. Some warranties require professional installation, so read the terms.

• Does the price include the unit, labor, and haul-away of the old disposal?
• Is wiring or a new outlet part of the quote?
• What horsepower and feed type is quoted?
• Are drain fittings and the dishwasher connection included?
• What is the warranty on the unit and on the labor?