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I’ve installed and replaced hundreds of garbage disposals, and the truth is most homeowners overpay for features they’ll never use — or buy a cheap unit that jams within a year. The right disposal comes down to motor horsepower, grind stages, and how quiet it runs under your sink.
Below are the three I actually recommend, from a no-frills budget unit to a 1 HP workhorse for busy kitchens. All install on the standard 3-bolt mount, so most are a straight swap for what you already have.
Best Overall: InSinkErator Evolution Compact 3/4 HP
This is the one I put in most kitchens. The 3/4 HP motor and two-stage grind handle everyday scraps without the racket of a cheap unit — InSinkErator’s SoundSeal insulation makes it noticeably quieter. The compact body also fits tight cabinets where a full-size unit won’t. For a typical family kitchen, this is the sweet spot of power, noise, and price.
Best Budget: InSinkErator Badger 5 (1/2 HP)
The Badger 5 is the contractor standard for a reason: it’s cheap, dead simple, and parts are everywhere. The 1/2 HP motor is fine for light-to-moderate use, and it’s the easiest unit to swap yourself in 30 minutes. It’s louder and won’t love bones or fibrous peels, but for a budget replacement that just works, nothing beats it.
Best Heavy-Duty: InSinkErator Evolution Excel 1 HP
If you cook a lot, have a big household, or want to grind tougher scraps, step up to the 1 HP Excel. Its multi-stage grind chews through almost anything and it’s the quietest of the three. It costs more and is physically larger, so check your cabinet clearance — but it’s the last disposal you’ll buy for a long time.
How to Replace a Garbage Disposal (Quick Overview)
- Cut power to the disposal at the breaker — never just the wall switch.
- Disconnect the drain trap and dishwasher hose, then twist off the old unit from its mounting ring (support its weight; they’re heavy).
- If your new unit uses the same mount (most InSinkErator units do), hang the new disposal on the existing ring. Otherwise, replace the sink flange and mounting assembly.
- Reconnect the discharge tube and dishwasher hose, then wire the unit (or plug it in) matching the old connections.
- Restore power, run cold water, and test. Check for leaks at the trap and flange before you call it done.
FAQ
What horsepower garbage disposal do I need?
For one or two people, 1/2 HP is enough. For a family that cooks regularly, 3/4 HP is the sweet spot. Go to 1 HP only if you have a large household or routinely grind tough scraps — more power also means a quieter, longer-lasting unit.
Can I replace a garbage disposal myself?
Yes, if you’re comfortable shutting off the breaker and making basic electrical connections. If your new unit uses the same mounting ring as the old one (most InSinkErator models do), it’s a 30-minute swap. If you’re replacing the mount or hardwiring, and you’re unsure about the electrical, hire a licensed plumber or electrician.
Why does my garbage disposal hum but not spin?
A hum with no spin almost always means it’s jammed. Cut the power, then use the hex wrench that came with the unit in the slot on the bottom center to manually free the flywheel. Press the red reset button underneath, restore power, and test.
Bottom Line
For most kitchens, the InSinkErator Evolution Compact 3/4 HP is the right call — quiet, powerful enough, and a clean fit. Tight budget or light use? The Badger 5 is the workhorse. Big household? Spend up for the 1 HP Excel. Whatever you pick, match the horsepower to how you actually cook.