What a replacement actually costs
Across the Bay Area, a straightforward disposal swap usually falls in the $200 to $450 typical Bay Area range installed. The number depends on the unit, the existing mount, and the drain connection.
- The unit: a half-horsepower builder-grade model is often about $90 to $130. A three-quarter or one-horsepower sound-insulated model is commonly $150 to $350.
- Labor: when the mount, electrical connection, and drain are sound, installation is relatively direct. The work includes connection, testing, and a leak check.
- Extras: a corroded drain elbow, failed mounting assembly, missing outlet, or altered plumbing adds parts and time.
More horsepower is not always the right buy. A three-quarter-horsepower unit handles a normal household well. One horsepower matters more for heavy daily use.
The sealed assembly and the replacement decision
Disposals are sealed assemblies, so parts-level repair is usually not a practical path. First separate a free homeowner check from a failed unit.
Handle it yourself, no charge:
- Jammed plate. Disconnect power, free the plate with the correct hex wrench in the bottom slot, press reset, and test.
- Tripped reset. Press the red button underneath after the motor cools.
- No power. Check the switch, outlet, breaker, and GFCI.
Time to replace:
- Leak from the body or bottom. A crack or failed internal seal is not a reliable field repair.
- Dead motor. If the plate is free and the motor still hums or stays silent, it may have failed.
- Persistent body leak after connections are checked. A flange or drain leak may be resealed. A leak from the unit itself usually means replacement.
- Age plus a new failure. Past eight to ten years, replacement is often the better spend.
Two-minute checks before you call
- Turn off the wall switch and disconnect the breaker before reaching near the unit.
- Press the reset button on the underside.
- Use the manufacturer’s hex wrench in the bottom slot, if provided.
- Remove visible obstructions with tongs, never your hand.
- Restore power and test with cold water running.
If it still hums, or you see water under the body, stop using it.
When to call a plumber or handyman
A licensed plumber or handyman handles garbage disposal replacement and any plumbing pipe work. Garbage disposal repair is not a service ADRIUM offers.
For more homeowner-safe guidance, see Home Service Pros.
FAQ
How much does a replacement cost? A standard swap is commonly $200 to $450 installed in the typical Bay Area range. Larger units and plumbing changes add to the total.
Is it worth repairing? Jams and reset trips are free checks. A leaking shell or dead motor usually means replacement because the assembly is sealed.
It hums but will not spin. What is wrong? The plate may be jammed. Disconnect power before using the correct bottom hex port. Continued humming can mean a failed motor.
Who should do the replacement? A licensed plumber or handyman, especially when the drain, mount, or electrical connection needs work.