Garbage Disposal Noise Levels & Insulation
Updated February 20, 2026
Key Takeaway
Budget disposals make conversation impossible. Premium insulated models are quiet enough to talk over. The difference is sound insulation, motor quality, and mounting isolation.
Overview
Budget disposals make conversation impossible. Premium insulated models are quiet enough to talk over. The difference is sound insulation, motor quality, and mounting isolation.
What to Know
Comparison
| Budget (no insulation): 80+ decibels, like a blender on high |
| Mid-range (basic insulation): 60-70 decibels, noticeable but tolerable |
| Premium (full insulation): 40-50 decibels, like a dishwasher running |
Buying Tips
- If the kitchen is open to living areas, invest in a premium insulated model.
- Higher HP models are often quieter because they grind faster and come with better insulation.
- Anti-vibration mounting reduces noise even on budget models.
- Running cold water while grinding slightly dampens vibration noise.
Common Mistakes
- Choosing based on HP alone without checking sound rating.
- Expecting any disposal to be silent. Even the best are audible.
- Replacing a quiet premium model with a cheap one. The difference is immediately obvious.
- Not checking if insulation adds width that exceeds cabinet clearance.
Bottom Line
Sound insulation is the most underrated disposal feature. In an open kitchen, the $50-100 premium for insulation pays for itself in daily comfort.