Telling the unit from the drain
Power, reset, the motor and the grinding chamber are checked, then the branch line is tested on its own. A unit that runs freely while the sink still fills is a drain problem, not a disposal problem.
Garbage Disposal Repair in Denver
A disposal that hums, trips off or drips into the cabinet is usually a short visit, as long as the sink drain underneath it is healthy. Denver Urgent Plumber sorts out which of the two is actually the problem and quotes the fix before starting.
- 24/7 Emergency Service
- Upfront Quotes
- Same-Day Availability
Signs Your Disposal Needs Work
- It hums but the grinding plate will not turn
- Nothing at all happens when the switch is flipped, even after the reset button is pressed
- Water collects in the cabinet or drips from the collar where the unit meets the sink
- The sink fills up and drains back while the disposal runs
- A metallic rattle, or grinding that has become much louder than it used to be
- A smell that returns within a day of cleaning the unit
Safety first: never put a hand into the chamber, and never do it with power connected. Switch the unit off at the wall, unplug it under the sink or shut off its breaker before anything else. A disposal cannot start on its own, but people do bump switches, and the blades inside are blunt paddles that turn with enough force to break fingers.
Where the house makes a difference here is the drain the disposal empties into. Plenty of Denver bungalows and mid-century ranches still have cast iron or galvanized kitchen branch lines, and decades of grease and ground food build up on the inside of that older pipe until it cannot take what a disposal sends it. The unit gets blamed for a blockage that belongs to the pipe.
What the Service Includes
The first question is always whether the disposal failed or the drain behind it did, because the two look identical at the sink.
Clearing a jam and the reset
A stuck flywheel is freed from underneath with the power disconnected, the jammed object is removed and the overload reset is used the way it was meant to be used, not as a repeated cure.
Leaks, mounts and replacement
Drips get traced to the sink flange, the mounting ring, the dishwasher inlet or the discharge elbow, all of which are repairable. A leak through the body of the unit itself is not, and that is when a replacement is the honest answer.
Your Repair Options
Most disposals that hum are jammed rather than dead, and most that leak are leaking at a connection rather than through the shell. Both are repairs. Replacement is the right call when the motor is seized, the body is corroded through or the unit is badly undersized for a busy kitchen, and the quote should say which of those it is. If yours is replaced, that is the moment to also look at the trap, the dishwasher hose and the mounting assembly, since they all come apart anyway. Keeping fibrous peelings, coffee grounds, bones, grease and pasta out of it does more for the unit's life than anything a plumber can install.
If the sink still backs up once the disposal is working, the next step is drain cleaning on the kitchen branch, and when several fixtures slow together it is time to look at the sewer line. Small fixture work under the same roof is covered on the toilet and faucet repair page, and the repair versus replacement comparison shows the sort of side-by-side you should expect for any appliance decision.
We take kitchen calls across Denver, including Commerce City and the rest of our service areas.
Garbage Disposal Questions
My disposal hums but does not turn. What does that mean?
The motor is getting power but the grinding plate is jammed, usually by a bone, a fruit pit, a piece of glass or silverware. Turn the switch off and leave it off, because running it while jammed burns out the motor. Do not reach into the chamber. Denver Urgent Plumber frees the flywheel from below and takes the object out. Send us the details and we will schedule it.
Is it safe to reach into a garbage disposal?
No. Even with the switch off, keep your hands out of the chamber and use tongs or pliers if something visible needs lifting out. Before anyone works on the unit, unplug it under the sink or shut off its breaker so it cannot be energized by mistake. If you are not sure which breaker it is, leave it and tell us on the call.
Should I repair or replace a leaking garbage disposal?
It depends on where the water is coming from. Leaks at the sink flange, the mounting ring, the dishwasher inlet or the discharge elbow are gaskets and fittings, and they are worth repairing. Water seeping out of the middle of the housing means the shell has corroded through, and that unit is finished. You will be shown which one it is before a price is quoted.
Can a garbage disposal cause a drain backup?
It can contribute to one. Ground food and grease settle in the horizontal run past the trap, and in older Denver homes with cast iron or galvanized kitchen lines that coating builds up fast. The disposal did not create the buildup, but it feeds it. If clearing the unit does not fix the sink, the branch line is the next thing to look at.
Get a plumber out to your Denver address
Tell us what the water is doing right now and we will plan the visit around it.