Garbage Disposal Repair & Installation in Chapel Hill, NC

Jammed, humming, or just dead

A garbage disposal gives you clear signals. A unit that hums but will not turn is jammed, and forcing it only burns out the motor; it usually needs to be freed and reset, not replaced. A disposal that is completely dead has typically tripped its reset button or lost power. One that leaks is failing at a seal or, if it leaks from the bottom, has a cracked internal housing, which does mean replacement. Knowing the difference saves you the cost of a new unit when a reset would have done it.

Where disposals cause bigger trouble is the drain they share. A disposal is tied into the kitchen drain and, in most homes, the dishwasher drains through it, so a clogged disposal or a missing dishwasher high loop turns into a sink that will not drain and a dishwasher full of dirty water. That overlap is why disposal problems and kitchen plumbing so often show up on the same visit.

Installing it so the whole sink works

A clean disposal install is about more than mounting the unit. The dishwasher drain has to connect with a proper high loop or air gap so wastewater cannot siphon back into the machine, the discharge has to tie into a correctly trapped and vented drain, and the electrical has to be right, whether it is hardwired or on a switched outlet. Skip any of those and you get leaks, odors or a dishwasher that never quite drains.

We also give honest advice on what to run through it. Even a good disposal struggles with fibrous scraps and grease, and grease is the single biggest cause of the kitchen drain clogs we clear, so the disposal is not a license to send fats down the sink. If your unit keeps jamming or the drain keeps backing up despite a working disposal, the real problem is usually downstream in the drain arm, and we look there rather than blaming the unit.

Horsepower and what actually matters

When people replace a disposal they tend to focus on horsepower, but the more useful questions are grind quality, sound insulation and build. A well-insulated three-quarter horsepower unit with stainless components will out-perform and out-last a loud, cheap one-horsepower model for a normal household. We will tell you the size that genuinely fits your kitchen rather than the biggest number on the box.

The other thing that matters is the install: continuous-feed versus batch-feed, the electrical connection, and the dishwasher tie-in with a proper high loop so the machine drains cleanly. All of that is really part of the kitchen plumbing as a system, which is why a disposal that keeps jamming or a sink that keeps backing up is often a drain problem downstream, not the unit itself. Batch-feed models, which only run with a stopper in place, are also worth considering in a home with young children, since they cannot run with anything reaching into the chamber. We also make sure the unit is anchored and the drain tie-in is right, because a disposal that vibrates loose or drains into a poorly trapped line causes leaks that look like a bad unit but are really a bad install.

Questions we get