A garbage disposal that's been making grinding sounds for months before stopping entirely often has a seized bearing or cracked impeller โ signs the motor isn't worth repairing. Our techs in Exeter tell you honestly whether a repair or a same-day unit swap makes more financial sense.
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Garbage disposal failures have specific, diagnosable causes. Our techs don't just swap units โ they identify what failed and whether repair or replacement is the right call for your situation.
A disposal that hums but won't spin almost always just needs the jam cleared with an Allen wrench at the center socket and the reset button pressed โ a 5-minute fix that doesn't require a new unit.
InSinkErator (Badger, Badger 5, Compact, Evolution series), Moen GXS/GX series, Waste King, KitchenAid, and Whirlpool disposals all mount differently and have specific jam-clearing procedures. We know the mounting assembly for each brand and carry the correct jam-clearing wrench sizes.
A disposal that jams once is worth clearing and resetting. A disposal that jams repeatedly, has a seized turntable bearing, emits burning smells, or is over 10 years old is likely approaching motor failure โ and the repair cost of a failed motor exceeds the cost of a new unit.
A disposal installed without properly removing the dishwasher drain knockout plug is a common installation error that floods the dishwasher interior. We check this and correct it if present.
From a simple jam clear to a full replacement with drain reconnection, here's how we handle each garbage disposal scenario in Exeter, NH.
If the jam-clearing wrench won't budge the impeller, the motor shaft may be seized rather than just stuck from debris โ we distinguish between the two before recommending replacement.
If power is confirmed at the disposal and it still won't start after a reset, the motor is failed. We then move to the replacement conversation with honest cost comparison.
Disposal leaks come from three locations: the sink flange (top of the unit where it mounts to the sink drain opening โ repaired by re-sealing the flange with plumber's putty and re-tightening the mounting ring), the side port (dishwasher drain hose connection โ usually a loose hose clamp or cracked fitting), or the bottom of the unit (internal body crack or failed internal seal โ indicates replacement needed).
If the turntable bearing has failed โ indicated by a loud rumbling throughout operation rather than specific impact sounds โ that's an internal motor wear failure that warrants replacement.
A disposal that grinds normally but drains slowly has a blockage in the drain arm or p-trap โ not an internal disposal problem. Food particles and grease accumulate in the short drain arm between the disposal outlet and the p-trap. We disconnect and clean the drain arm, clear any p-trap buildup, and reinstall with clean connections.
When the motor has failed, the unit body is cracked, or the existing unit is underpowered for the household's use pattern, we replace the disposal with a new unit matched to the sink drain configuration. We carry 1/2 HP, 3/4 HP, and 1 HP units from InSinkErator and other major brands on our trucks for same-day installation.
No guesswork โ we diagnose before we quote, and quote before we start.
Hums but won't spin, completely silent, grinding noise, leaking, or slow to drain โ each symptom tells our dispatcher which tools and possible replacement units to have on the truck. Knowing the disposal brand is a plus but not required.
The tech identifies the failure type in minutes: jam test at the motor socket, reset button check, power confirmation at the wire connections, leak source tracing. We know what each symptom means and we go straight to confirming it.
You decide. We don't upsell replacement when repair is the right answer, and we don't push a cheap repair that won't hold on a unit that's genuinely at end of life.
We leave the cabinet dry and the disposal running quietly. If a dishwasher drain hose was involved, we run a dishwasher cycle to verify no backup occurs.

The disposal under our kitchen sink was 12 years old and started leaking from the bottom โ which the tech explained is always an internal seal failure, not a repairable condition. He had a replacement 3/4 HP InSinkErator on his truck, installed it in about 45 minutes, and the kitchen is back to normal. Old unit got pulled, new unit tested clean, no leaks at any connection.
After we added a dishwasher, it started backing up every cycle. Masters Plumbing Service found the problem immediately โ the previous installer had forgotten to knock out the dishwasher drain plug inside the disposal inlet. The plug was blocking the drain port. Two-minute fix. The tech also tightened the dishwasher drain hose clamp, which was loose. Never had another backup.
Old disposal stopped working completely โ no hum, nothing. I assumed the motor failed. The tech checked the wiring first โ found a loose wire nut at the junction box under the sink that had vibrated loose over the years. Reconnected the wire, reset the overload button, disposal came right on. Would have been embarrassing if I'd bought a replacement unit. Masters Plumbing Service's thoroughness saved me a few hundred dollars.

Masters Plumbing Service dispatches garbage disposal repair and replacement technicians throughout Exeter and the broader Exeter, NH service area. Most calls are same-day โ call to check today's availability.

Our disposal techs in Exeter, NH carry the tools and replacement units to resolve any disposal problem same visit. Flat-rate pricing, honest repair-vs-replace guidance, and no unnecessary upselling.
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