InSinkErator vs Waste King Garbage Disposals
InSinkErator and Waste King are the two biggest names in garbage disposals. We compare top models like the Evolution Series and L-8000 on noise, power, warranty, and price to help you decide which brand fits your needs.
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InSinkErator Evolution Series
Quieter operation with SoundSeal technology, multiphase grinding for finer particles, and a limited lifetime warranty. Best for those who prioritize noise reduction and build quality.
Check priceWaste King L-8000
Powerful 1 HP motor, corrosion-proof stainless steel components, and a lifetime warranty. An excellent value for those who want raw grinding power without breaking the bank.
Check priceInSinkErator wins for quieter operation and premium build, but Waste King offers better value for power and warranty. Choose InSinkErator if noise is your top concern; pick Waste King for budget-friendly strength.
Spec by spec
Highlighted cell wins that row.
| InSinkErator Evolution Series | Waste King L-8000 | |
|---|---|---|
| Motor Power | 0.75 HP (Evolution Compact) to 1 HP (Excel) | 1 HP |
| Noise Level | Very quiet (SoundSeal technology) | Moderate (standard insulation) |
| Grind Stages | Multistage (two or three grinding elements) | Single stage |
| Warranty | Limited lifetime (parts and labor) | Lifetime (corrosion proof) |
| Grind Chamber Material | Galvanized steel (some models stainless) | Stainless steel (all models) |
| Ease of Installation | Easy with Quick-Lock mount | Easy with EZ Mount system |
| Price Range | Higher | Lower |
Who should buy which
- + You want the quietest disposal possible for an open kitchen or apartment.
- + You prefer a brand with a long track record and premium customer support.
- + You want maximum grinding power for a large family or heavy use.
- + You are on a tighter budget but still want a reliable, long-lasting disposal.
Quick questions
Which garbage disposal is quieter, InSinkErator or Waste King?
InSinkErator models with SoundSeal technology are significantly quieter than most Waste King disposals. The Evolution Series uses multiple layers of insulation and a sound-dampening sink baffle to reduce noise. Waste King disposals are louder due to less insulation, though they are still acceptable for many kitchens.
Do InSinkErator and Waste King disposals have the same warranty?
Both brands offer limited lifetime warranties, but the coverage differs. InSinkErator covers parts and labor for the original homeowner, while Waste King's warranty is transferable and covers corrosion on stainless steel parts. Waste King's warranty is often considered more generous because it is fully transferable.
Which brand is better for heavy use: InSinkErator or Waste King?
Waste King L-8000 with its 1 HP motor and stainless steel grind chamber is ideal for heavy use. InSinkErator's higher-end models like the Evolution Excel also handle heavy use well but at a higher price. For raw power per dollar, Waste King wins.
Can I install either disposal myself?
Yes, both brands are designed for DIY installation. InSinkErator uses a Quick-Lock mount system that secures with a simple twist, while Waste King uses an EZ Mount system that is similarly straightforward. Most homeowners can complete the installation in under an hour using basic tools. Both brands offer optional power cord kits to simplify wiring.
Which brand has better customer support?
InSinkErator has a strong reputation for customer service, with a dedicated support line and online resources. Waste King also provides good support, but some users report longer wait times. InSinkErator's warranty includes labor coverage, which can simplify repairs. However, Waste King's transferable warranty is a plus for resale.