Garbage Disposal Installation Cost Guide
Estimate what it costs to install a garbage disposal based on the unit power, whether it is a replacement or a new install, and your installer.
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Average cost
| Scenario | Range |
| Disposal unit only | $80 - $400 |
| Replacement install | $150 - $450 |
| New install (wiring + switch) | $400 - $950 |
| 1 HP unit (installed) | $250 - $600 |
| Labor only | $100 - $300 |
What affects the price
- Unit power and quality. Higher-HP and quieter models cost more.
- New vs replacement. A first-time install adds electrical work for the outlet and switch.
- Plumbing changes. New drain plumbing or dishwasher connections add cost.
- Installer. Plumbers charge more than handymen but ensure code compliance.
- Disposal of old unit. Hauling the old unit may add a small fee.
- Location. Local labor rates vary.
FAQ
How much does garbage disposal installation cost?
Replacing an existing unit usually runs $150 to $450; a new install with wiring can reach $950.
What HP garbage disposal do I need?
3/4 HP handles most households well; 1 HP suits large families or frequent use.
Can I install a garbage disposal myself?
Replacing an existing unit is a common DIY job; a new install needing wiring is best left to a pro.
How long does a garbage disposal last?
With normal use, most last 8 to 12 years.
Does a new install cost more than a replacement?
Yes, because it adds an outlet, switch, and sometimes plumbing changes.