Garbage Disposal Services in Altadena, CA

Garbage disposal services cover the small but important kitchen appliance that grinds food waste and discharges it into the drain line. Most disposal calls are jams, leaks, or replacement of units that have reached the end of their service life. The work is straightforward and most repairs take under an hour. Replacement takes 60-90 minutes for a like-for-like swap. We carry the common brands and parts on the truck for same-day service across Altadena and the surrounding SGV.

IMAGE: Garbage disposal under kitchen sink

Common disposal problems

Disposals fail in a small number of predictable ways. Each has a specific cause and fix.

Won't turn on at all

The most common cause is the thermal overload reset button on the bottom of the disposal has tripped. Press it in. If it stays in and the disposal runs, you're done. If it pops back out immediately, there's a deeper issue: a jam that's overloading the motor, or motor failure itself.

If the reset button stays in but the disposal still doesn't run, check the switch, the breaker, and the GFCI if the disposal is on one. Disposal switches fail occasionally; replacement is quick.

Hums but doesn't grind

A hum without spinning impellers means the motor is getting power but something is blocking the impeller from turning. Almost always a jam. Power off at the switch and breaker, then use the hex wrench (a 1/4 inch L-shaped tool included with most disposals) in the socket on the bottom of the unit to manually rotate the impellers and free the jam.

Leaks from the top

Water pooling around the disposal at the top, under the sink, comes from the sink flange gasket failing. The flange is the part of the disposal that mounts to the sink. The fix is to remove the disposal, replace the plumber's putty or rubber gasket between the flange and the sink, and remount.

Leaks from the side

A leak from the side of the disposal usually comes from the dishwasher drain connection inlet. The gasket where the dishwasher hose attaches has failed. Replace the hose clamp and gasket, and verify the connection is tight.

Leaks from the bottom

This is the bad one. Leaks at the bottom of the disposal housing usually mean the internal seals have failed and water is escaping through the motor compartment. This is almost always cause to replace the unit; bottom leaks are rarely worth repairing.

Loud grinding or rattling noises

A new loud noise usually means something hard has fallen into the disposal (a piece of utensil, a bone fragment, a bottle cap) or a piece of the impeller has broken loose. Power off, look inside with a flashlight, and remove the foreign object. If the noise persists after, internal damage may need unit replacement.

Jam clearing and reset

Jam clearing follows a specific sequence. We can walk customers through it on the phone if they want to try first, or we'll do it on a service call.

Step 1. Turn off the disposal at the wall switch. Then turn off the breaker that powers the disposal at the panel. Never reach into a disposal without confirming the power is off at the breaker.

Step 2. Look inside with a flashlight. If you can see what's jammed (a utensil, a fruit pit, a wedged piece of food), remove it with tongs or pliers. Don't use your hand.

Step 3. Use the hex wrench in the bottom socket to manually rotate the impeller. If it turns freely, the jam has cleared. If it's still stuck, work it back and forth gently to break the jam loose.

Step 4. Press the reset button on the bottom of the disposal.

Step 5. Restore power at the breaker and switch. Run cold water and turn the disposal on briefly. It should run smoothly.

Repair vs replace

The decision is usually obvious once we look at the unit.

Repair when: The disposal is under 7 years old, the housing is sound (no corrosion or bottom leaks), and the problem is a serviceable component (flange gasket, dishwasher hose, sink baffle, switch).

Replace when: The unit is 10+ years old, the bottom is leaking or housing is corroded, the motor has failed, or repair costs are approaching the cost of a new mid-grade unit installed.

For Altadena households where the existing disposal is older and underpowered, replacement with a 3/4 HP or 1 HP unit is often the right call rather than repairing an end-of-life 1/3 HP.

IMAGE: New disposal installation with mounting hardware

Installation

Standard installation involves removing the old disposal, replacing the sink flange and gasket on a new install (or reusing if it's in good condition on a same-brand swap), connecting the dishwasher drain hose with a new clamp, connecting the discharge tube to the P-trap, wiring to the existing switched power, and testing for leaks.

For homes wanting to add an air switch (a counter-top button that activates the disposal pneumatically, useful in island sinks without nearby wall switches), we install the air switch button and the connecting tubing during disposal installation. This is increasingly popular in remodeled SGV kitchens.

For homes adding a disposal where none existed previously, we install the necessary electrical (often requiring an electrician for the dedicated circuit) and plumbing modifications. Code requires a dedicated 15 or 20 amp circuit for new disposal installation in California.

Cost of disposal work in Altadena

Other kitchen plumbing work we handle

Beyond disposal-specific work, we install dishwashers and their supply and drain connections, set up instant hot water dispensers, install reverse osmosis filtration under the sink, replace faucets and sinks (covered in detail on the faucet and sink page), handle kitchen remodel rough-in plumbing, and provide pressure-balanced water lines to kitchen islands. We coordinate with cabinet makers and countertop fabricators on larger kitchen renovation projects.

Frequently asked questions