Garbage Disposal Replacement Cost in 2026

A garbage disposal that hums but doesn't spin, leaks from the bottom, or just stopped working is usually at the end of its life. Replacement is straightforward and relatively affordable. Here's what it costs.

Garbage Disposal Replacement Cost

Total installed cost (unit + labor): $200-$550 Labor only (you supply the unit): $100-$200 Garbage disposal unit alone: $80-$350 depending on brand and horsepower

The most common replacement scenario - swapping a broken disposal for a new one of the same size - takes a plumber 1-2 hours.

Cost by Disposal Type

1/3 HP (light use, studio or small kitchen): $80-$130 for the unit 1/2 HP (standard household use): $100-$180 for the unit 3/4 HP (heavy use, larger household): $150-$250 for the unit 1 HP+ (continuous feed, professional-grade): $200-$350+ for the unit

InSinkErator and Moen are the most common brands in the US. Waste King is a good value alternative. All are available at hardware stores.

What's Included in a Professional Installation

• Removing the old disposal
• Installing the new unit in the existing mount (if compatible)
• Reconnecting the drain line and electrical
• Testing for leaks
• Basic cleanup

If the new disposal uses a different mounting system than the old one, installation takes longer and costs a bit more. InSinkErator has its own mounting system; most other brands use a standard 3-bolt mount.

DIY vs. Hiring a Plumber

DIY is very doable if: - You're replacing like-for-like with the same mounting system - The electrical outlet under the sink is already in place (most disposals plug in) - You're comfortable with basic plumbing (drain reconnection, p-trap work)

The job takes 30-60 minutes with basic tools. YouTube has clear tutorials. Buy the disposal at a hardware store and save $100-$200 on labor.

Hire a plumber if: - The old disposal is hardwired (not plugged in) - requires electrical work - There's no outlet under the sink and you need one added - The mounting system needs to change - There's existing plumbing damage (corroded trap, damaged drain line)

What Drives the Cost Up

Adding an outlet: If there's no electrical outlet under the sink for the new disposal, an electrician needs to add one. Add $150-$250 to the total.

Hardwired old unit: If the existing disposal was hardwired and the new one is plug-in (or vice versa), electrical work is needed.

Dishwasher connection: Many disposals double as a dishwasher drain connection. If yours is, the installer needs to account for that connection.

Older plumbing: If the p-trap or drain lines under the sink are corroded or don't seal properly, the plumber may need to replace those components. Add $50-$150.

Signs You Should Replace (Not Repair)

• Leaking from the bottom (bottom seal failed - not repairable)
• Loud grinding noises that persist after clearing jams
• Frequent jamming despite clearing
• Unit is 10+ years old and has failed multiple times

Disposal repairs are generally not worth it. The parts cost nearly as much as a new unit, and a new unit comes with a fresh warranty.

Bottom Line

Garbage disposal replacement costs $200-$550 installed, or $80-$350 if you do it yourself. Most installations take 1-2 hours of plumber time. DIY is reasonable if you're comfortable with basic plumbing and the electrical is already set up.

Sources and editorial notes

Prices and permit requirements vary by location, property, equipment, and scope. Treat price ranges as planning estimates and confirm current requirements with the relevant authority and contractor.

• US Consumer Product Safety Commission - home safety

Related guides

• Garbage Disposal Not Working: Common Fixes Before Calling a Plumber
• Kitchen Faucet Replacement Cost Guide
• When to Repair vs. Replace a Water Heater

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