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 Arnold tell you honestly whether a repair or a same-day unit swap makes more financial sense.
๐ Call +1-855-718-1500 โ Same-Day Service
We carry replacement units on the truck in common horsepower ratings so a same-day swap is possible when the motor has genuinely failed.
Hum but no spin: jammed impeller. No sound at all: tripped thermal overload or failed motor. Intermittent operation: loose wiring at the switch or disposal unit. Continuous drain from the sink collar: failed sink flange gasket. Leak from the side: dishwasher drain hose connection or internal body crack. We trace the symptom to the specific cause before recommending any solution.
InSinkErator models use a 1/4-inch Allen wrench at the center bottom; Waste King models use a broom-handle approach at the top. Knowing which you have before arriving saves time and prevents the wrong tool damaging the motor shaft.
We give you the actual cost comparison. If clearing the jam and pressing the reset button fixes it, that's what we do. If the motor has failed, we show you the replacement options and install same-day.
A disposal isn't an isolated appliance โ it connects to the sink drain, the dishwasher drain (if present), and the drain arm leading to the p-trap. We inspect the full connection set during any disposal call: drain arm slope, dishwasher drain knockout (if a dishwasher is being added), and p-trap connection integrity.
From a simple jam clear to a full replacement with drain reconnection, here's how we handle each garbage disposal scenario in Arnold, MO.
A disposal that hums with no rotation has a jammed impeller plate โ the spinning plate has been stopped by a bone fragment, a piece of silverware that fell in, or hard food buildup around the shredder ring. We use the jam-clearing wrench at the center motor socket to manually rotate the impeller free, remove any obstruction from the grinding chamber, and press the thermal overload reset button before testing.
A disposal that makes no sound when switched on has either tripped its thermal overload protector (the red button on the bottom โ press it and try again) or has a wiring issue at the switch or disposal unit. We check the reset button, test for power at the disposal's wire connection, and test the wall switch for continuity.
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).
An unusually loud grinding, rattling, or metal-on-metal sound from a disposal almost always means either a hard object (bottle cap, small utensil, pit from stone fruit) is in the grinding chamber, or an impeller piece has broken and is contacting the shredder ring. We access the grinding chamber safely, remove any foreign objects, and inspect the impeller and shredder ring for damage.
If the slow drain persists after cleaning the drain arm and p-trap, a camera scope of the kitchen drain line is the next step to check for blockage further downstream.
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.
For leaks, we dry the area completely and run a short test cycle to confirm exactly which connection is dripping.
You receive a flat-rate price for the repair option and, if relevant, the replacement option with unit cost included. For a simple jam clear, that's a single, low line item. For a failed motor, we show you the new unit cost and installation price together.
After repair or replacement, we run the disposal through a full test: several cycles with water running, check under the sink for any drip at all connection points, and confirm the drain arm clears at a normal rate.

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.
Disposal making a loud rattling noise but still grinding. Tech took out a bottle cap that had gotten past the splash guard and was spinning around the grinding chamber. Cleaned out the chamber, confirmed the impeller wasn't damaged, tested for smooth operation. Twenty-minute visit, everything working perfectly.
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 Arnold and the broader Arnold, MO service area. Most calls are same-day โ call to check today's availability.

Call now โ same-day service available in Arnold and across Arnold, MO.
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