- A garbage disposal usually costs $150 to $950 installed on Bob Vila's and Today's Homeowner's numbers, and $300 to $600 on Fixr's.
- Size it to the household: Fixr puts units for 1 to 2 people at $50 to $150 and for 5 to 8 people at $200 to $400.
- Labor runs $50 to $200 after the unit, Bob Vila says.
- No outlet under the sink means an electrician first.
Disposal cost by household size
| Household | Unit (Fixr) | Unit (Today's Homeowner) | Installed, typical |
|---|---|---|---|
| Small | $50 to $150 (1 to 2 people) | $50 to $225 (1 to 3) | $244 |
| Medium | $175 to $300 (3 to 6) | $120 to $310 (3 to 5) | $351 |
| Large | $200 to $400 (5 to 8) | $200 to $400 (4 to 8) | $425 |
Continuous or batch feed
Continuous-feed disposals run from a wall switch and are the common, cheaper type; Fixr lists them at $50 to $300. Batch-feed units only run with the stopper in place, which some people prefer near small children; Fixr lists them at $100 to $400. Stainless grinding parts last longer than aluminum; Bob Vila says aluminum models tend to last around 10 years.
Brands
Fixr lists Waste King at $50 to $125, InSinkErator at $125 to $325 and GE at $150 to $300 for the unit. Power, noise insulation and warranty length explain most of the spread.
A worked example
A 3/4 hp disposal for a family of four comes to $198 to $505, about $351 typical, at the US average. Enter a ZIP to scale the 50% labor share to your state.
Quoting disposal installs
- Check power under the sink.
- Dishwasher knockout. Remember to knock it out when the dishwasher drains through the disposal.
- Offer two sizes. A good and a better unit on one estimate.
Send it as an estimate from Koira.
Last checked October 9, 2026. More for your trade: how plumbers run on Koira.