How to Remove a Garbage Disposal. Step-by-Step

Removing a garbage disposal takes 30–45 minutes and requires no special tools beyond an adjustable wrench and a flathead screwdriver. The mounting ring releases in 1/2 to 1 counter-clockwise rotation, no cutting or sawing required.

We recommend working through this guide in order: gather tools, kill the power, then disconnect in the sequence below. Rushing the power-kill step is the most common reason DIYers call a plumber after the fact.

This is a standalone removal guide. If you need to install a new unit afterward, that workflow lives on our garbage disposal replacement page.

garbage disposal mounted under sink showing mounting ring location

This guide is for you if…

This guide IS for you if:

You are switching brands and the new unit uses a different mount system (InSinkErator EZ Mount to Waste King 3-bolt, or vice versa)
You are going disposal-free permanently, kitchen renovation, septic concerns, or prepping to sell the house
You are clearing access for a countertop demo, cabinet rebuild, or P-trap reroute and just need the unit out of the way

This guide is NOT for you if:

You are swapping for a same-brand replacement that uses the same mount system, you may not need to pull the flange at all. See our full disposal replacement guide instead.
You have already removed the unit and need installation steps. Those are on the install your new disposal page.

Tools you need

Gather these before getting under the sink:

Adjustable wrench (2 preferred), one holds the disposal outlet steady, the other turns the P-trap slip nut
Flathead screwdriver, loosens the dishwasher drain hose clamp
Bucket, catches residual water from the P-trap and dishwasher hose
Non-contact electrical tester, confirms the breaker kill actually worked; do not skip this
Work gloves, sheet metal edges cut; the interior of the disposal is sharp
Safety glasses, water and debris come loose when you disconnect drain lines
Towels, for spill cleanup once you tip the P-trap
Optional: InSinkErator Jam Buster wrench, fits all EZ Mount units and doubles as a mounting ring removal tool

Before you start, also remove the splash guard before starting if it is loose or flapping, it can fall into the unit when you tip it free.

For a visual overview of the full process, watch this walkthrough before you begin:

Video: “How to Replace a Garbage Disposal - Easy, Step-by-Step” by LRN2DIY

Before you start, kill the power

This is not optional. Work through all three sub-steps before touching any plumbing.

Wall switch off. Flip the switch to OFF, then tape it in place. Someone bumping it mid-job is a real hazard.
Breaker off. Go to the panel and flip the disposal circuit breaker off. If it is labeled “kitchen” rather than “disposal,” turn that one off.
Verify with a tester. Hold the non-contact tester near the disposal outlet or cord. If it beeps or lights up, the circuit is still live, find the right breaker and try again.

Plug-in models have a cord you can see under the sink. Hardwired models require the breaker kill plus terminal verification (step 3 in the removal sequence below). If you are not comfortable with basic electrical work beyond a breaker flip, call a licensed electrician for the hardwired disconnect, the rest of the removal is fully DIY-safe.

One thing you do not need to do: shut off the main water supply. Disposals connect only to the drain side of the plumbing. The only water you will manage is residual water in the P-trap and the dishwasher drain hose. Have the bucket ready and you are set.

For a reference on DIY safety standards, see the Family Handyman removal guide{:target=“_blank”}.

How to remove a garbage disposal, step by step

Disconnect the dishwasher drain hose. If a corrugated hose runs from the dishwasher to the disposal’s inlet port, loosen the hose clamp with the flathead screwdriver and pull the hose free. Hold the bucket under the port, the hose holds standing water. If you do not have a dishwasher connection, skip this step.
Disconnect the drain tail and P-trap. Use two wrenches: hold the disposal outlet port steady with one, and turn the P-trap slip nut counter-clockwise with the other. Once loose, unscrew by hand and tip the trap into the bucket. We found the two-wrench technique prevents cracking the disposal outlet port, which is the most common DIY mistake at this step.
Disconnect the electrical. Plug-in models: pull the cord straight out of the outlet. Hardwired models: loosen the terminal block cover screws on the bottom of the unit. Note the wire colors (black to black, white to white, green or bare copper to ground). Loosen the terminal screws, remove the wires, and confirm no power with the tester before proceeding.
Loosen the mounting ring. Using the disposal removal wrench or an adjustable wrench in the twist tabs, rotate the mounting ring counter-clockwise. It releases in about 1/2 to 1 full rotation. This is the step where weight becomes a factor, most residential units weigh 8–12 lbs, and the body drops the moment the tabs release.
Lower the disposal and set it aside. Support the disposal body with your free hand as the tabs release. Once free, set it on the floor or a piece of cardboard to avoid scratching the cabinet floor. The unit is now disconnected.

After the unit is out, if you are installing a new disposal, follow the steps on our install your new disposal page. The Home Depot removal walkthrough{:target=“_blank”} also covers the reconnection side if you want a visual reference.

What to do with the opening after removal

If you are going disposal-free, the drain hole does not stay open. You have three options:

Option A: Standard basket strainer, If you are keeping the existing sink flange, thread a plain strainer basket directly into the flange opening. Cost: $10–$30 at any hardware store.
Option B: Full basket strainer assembly, If the disposal flange is a different diameter than a standard drain or you want a clean installation, remove the flange entirely and install a standard basket strainer with a fresh plumbers putty seal. Cost: $15–$50 for the assembly.
Option C: Disposal cap, Some disposals ship with a non-use cap that threads onto the mounting ring. If you still have the original packaging, check there first.

Reconnect the P-trap to whatever drain assembly you install. The process is the same sequence in reverse: thread the slip nut hand-tight, then snug with the wrench. Do not over-tighten.

Flange decision, keep it or pull it?

Whether to remove the sink flange depends on what comes next.

Keep the flange if:

You are installing a same-brand replacement with the same mount system
The flange gasket (the rubber ring under the flange lip) is intact and not compressed
Keeping it saves 15 minutes and avoids re-puttying the sink

Pull the flange if:

You are switching brands with incompatible mounts. InSinkErator uses the EZ Mount system; Waste King uses a 3-bolt mount. These are not interchangeable, if you are switching brands, pull the entire flange assembly.
The gasket is cracked, compressed flat, or missing. Replacement gaskets cost $10–$20; a full flange assembly runs $15–$25.
You are going disposal-free and want a standard drain look

To pull the flange: From underneath, loosen the three mounting screws that hold the snap ring and mounting assembly. Once those release, push the flange up through the drain hole from below. Clean the old plumbers putty from the sink surface before installing the new drain assembly.

For a closer look at flange types and compatibility, see our guide to inspect or replace the sink flange.

Disposing of your old garbage disposal

Most disposals contain copper motor windings and steel components. Many municipalities classify them as e-waste rather than regular trash.

Check your local transfer station. Most county transfer stations have a small-appliance or e-waste dropoff lane. Use the EPA e-waste locator{:target=“_blank”} to find the nearest certified facility.
Home Depot and Lowe’s accept small appliances for recycling at many locations. Call ahead to confirm your store participates.
Metal recyclers accept disposals for scrap value. Copper and steel content means some yards will pay a few dollars per unit.
Habitat for Humanity ReStores accept working small appliances. If the motor on your old unit still runs and the unit is under 8 years old, it may qualify for donation.

Do not set a disposal out with regular recycling without checking first, it may get rejected or routed to landfill.

FAQ

Do I need a plumber to remove a garbage disposal?

No. Removal is a DIY task for anyone comfortable with a basic breaker shutoff and a wrench. If you are hiring out for permanent removal (going disposal-free), a plumber charges $125–$350 for the labor and drain stub-out reconnection, based on HomeGuide 2026 data. See what a plumber charges to remove a disposal for a full breakdown by region. If you are replacing with a new unit, removal labor is typically bundled into the $150–$250 installation fee.

Do I need to turn off the water to remove a garbage disposal?

No. There is no dedicated water supply line to a garbage disposal. Disposals connect only to the drain side of the plumbing. The only water you will manage is residual water in the P-trap and the dishwasher drain hose, both of which are unpressurized. Have a bucket ready and that is sufficient.

How heavy is a garbage disposal?

Most residential disposals weigh 8–15 lbs depending on HP rating. A 1/3 HP InSinkErator Badger 1 weighs about 8 lbs; a 1 HP Waste King L-8000 weighs about 14 lbs. Support the body with your free hand before the mounting ring fully releases. Have a second person available if you have back or shoulder concerns.

How long does it take to remove a garbage disposal?

30–45 minutes for most homeowners on a straightforward job, based on the Lowe’s installation guide timeline. Add 15–20 minutes if you are also pulling the flange for a brand switch. Hardwired electrical disconnect adds about 5 minutes over a plug-in model.

What wrench size do I need to remove a garbage disposal?

You do not need a specific hex or Allen wrench to remove the disposal body. The mounting ring uses twist-tab slots that release by hand or with the disposal removal wrench. You need an adjustable wrench for the P-trap slip nut and a flathead screwdriver for the dishwasher hose clamp. That is the full tool requirement.

Can I reuse the mounting ring for a new disposal?

If you are staying with the same brand and mount system, yes, the mounting ring can stay in place on the flange. If you are switching brands (InSinkErator to Waste King or vice versa), no. The mount systems are incompatible. Pull the entire flange assembly and start fresh with the hardware that ships with the new unit.