Garbage Disposal Repair

Garbage Disposal Repair & Installation in Charleston, SC

Your disposal was working fine this morning. Now it hums when you flip the switch but won’t grind, or water is pooling under the sink, or the kitchen smells like something died inside the cabinet. Whatever brought you here, we can help.

Pineapple Plumbing repairs, replaces, and installs garbage disposals for homeowners across Charleston, Summerville, Mount Pleasant, West Ashley, North Charleston, James Island, Johns Island, Goose Creek, and the surrounding Lowcountry. Co-owners Austin Holcomb, a U.S. Marine veteran, and Austin Webb, a lifelong Summerville native, bring a combined 22 years of hands-on plumbing experience to every service call. We diagnose the problem, explain your options honestly, and fix it right. If a simple repair gets it working again, that’s what we’ll recommend.

What Your Garbage Disposal Is Telling You

Before you call, use this table to get a quick read on your situation.

What’s happening	What it probably means	What to do
Hums but won’t grind	Something is jammed inside, or the motor is strained	Turn it off immediately. Don’t keep running it.
Won’t turn on at all	Tripped reset, blown breaker, or failed motor	Press the reset button on the bottom of the unit. Check the breaker. If neither works, call a plumber.
Leaks underneath the sink	Failed seal at the sink flange, loose drain connection, or cracked housing	Place a towel or bucket under it and stop using the disposal until inspected.
Kitchen sink drains slowly when disposal runs	Clog in the discharge pipe or drain line beyond the disposal	Don’t keep running the disposal into a backed-up drain.
Loud metallic rattling or grinding	Foreign object (utensil, bone fragment, glass) caught inside	Turn it off. Do not reach inside.
Trips the reset button repeatedly	Motor is overloading, usually from a jam or internal wear	Repeated tripping means the unit is struggling. Have it checked.
Persistent bad odor even after cleaning	Food trapped in the grinding chamber or the drain line below	Run cold water and ice through the unit. If the smell continues, the issue is deeper.
Dishwasher isn’t draining properly	Disposal drain connection or dishwasher knockout plug may be blocked	Check whether a new disposal still has the knockout plug in place (a common oversight during installation).

Common Garbage Disposal Problems We Fix

Jammed disposal that hums but won’t spin:
This is the most common call we get. Something is lodged between the grinding plate and the wall of the chamber, preventing the motor from turning. Running the unit while it’s jammed overheats the motor and can burn it out permanently. We clear the jam, check the motor for heat damage, and test the unit before we leave.

Disposal that won’t turn on:
If pressing the reset button on the bottom of the unit and checking the breaker doesn’t restore power, the issue is usually a failed motor, a damaged switch, or a wiring problem at the connection. We diagnose which one it is and tell you whether repair or replacement makes more sense.

Leaking from the sink flange, the discharge pipe, or the body:
Where the leak is coming from determines whether it’s fixable. A leak at the sink flange usually means the mounting seal or plumber’s putty has failed and can be resealed. A leak at the drain connection or dishwasher port is typically a loose fitting that can be tightened. A leak from the body of the unit itself means the housing has cracked or corroded, and the disposal needs replacing.

Slow draining kitchen sink:
When the sink drains slowly while the disposal is running, the blockage is usually in the discharge pipe or the drain line below the disposal, not in the disposal itself. We clear the line and check whether the disposal is contributing to the problem or if the drain needs professional cleaning.

Persistent odor:
Food residue trapped in the grinding chamber, the splash guard, or the drain line below the unit produces odors that surface cleaning doesn’t always reach. Running ice cubes and cold water through the unit can help. If the smell persists, the buildup is deeper in the drain system and needs professional attention.

Dishwasher drainage problems connected to the disposal:
The dishwasher drain line connects to the disposal on most Charleston-area kitchen setups. If the disposal drain port is clogged, the knockout plug wasn’t removed during installation (a surprisingly common mistake), or the disposal itself is backed up, the dishwasher can’t drain properly. We check the full connection and clear any blockages.

When to Repair vs. When to Replace

Not every disposal problem needs a new unit. Here’s how we think about it.

Repair usually makes sense	Replacement usually makes sense
Jam that can be cleared with no motor damage	Motor has failed completely
Loose drain or dishwasher connection	Housing is cracked or corroded through
Failed seal at the sink flange (resealable)	Unit leaks from the body (not a fitting)
Reset button resolves the issue and it stays resolved	Reset trips repeatedly despite clearing jams
Unit is under 5 years old	Unit is 8+ years old and requiring its second repair
Single incident caused by a foreign object	Chronic jamming from worn grinding components

If a straightforward repair gets your disposal working reliably, that’s what we’ll recommend. If the motor has failed, the housing is cracked, or the unit is old enough that continued repair doesn’t make financial sense, we’ll explain why replacement is the better path and help you choose the right unit for your kitchen.

New Disposal Installation

Whether you’re replacing an existing unit or adding one to a kitchen that’s never had one, installation involves more than plugging in a new disposal.

Replacing an existing disposal. We remove the old unit, inspect the sink flange and mounting hardware, check the drain connection and dishwasher port, install the new disposal, test for leaks, and confirm it operates correctly. If the old mounting system is compatible with the new unit, we reuse it. If not, we install new mounting hardware as part of the job.

Adding a disposal where one hasn’t existed. This requires modifying the sink drain configuration to accept the disposal, installing the sink flange and mounting assembly, connecting the drain discharge, and connecting the dishwasher drain line if applicable. We handle the plumbing side of the installation. If electrical work is needed (running a new switch or outlet), we’ll let you know upfront.

During a kitchen remodel. If you’re upgrading your sink, countertop, or kitchen layout, we coordinate with your contractor to install the disposal as part of the project so the plumbing is ready when the countertop goes in.

What Not to Put Down Your Disposal

A garbage disposal handles small amounts of soft food waste. It’s not designed to replace a trash can. Treating it like one is the fastest path to a jam, a clog, or a burned-out motor.

Grease and cooking oil. They flow in liquid but solidify in the drain line and coat the interior of the pipe. This is the single most common cause of kitchen drain clogs we see across the Lowcountry. Pour grease into a container and throw it in the trash.

Fibrous or starchy foods. Celery, asparagus, corn husks, artichokes, and potato peels wrap around the grinding components and can cause jams. Pasta and rice expand with water and contribute to drain blockages.

Hard items. Bones, fruit pits, shellfish shells, and ice in large quantities stress the grinding plate and motor. Small chicken bones may pass through, but larger bones and hard materials shouldn’t go in.

Non-food items. It sounds obvious, but we’ve pulled bottle caps, rubber bands, twist ties, broken glass, and silverware out of disposals. If it’s not food, don’t put it in.

Always run cold water. Run cold water before, during, and for 10 to 15 seconds after using the disposal. Cold water solidifies any grease so the disposal can break it up rather than letting it coat the drain line downstream.

Safe Checks You Can Do Before Calling

A few things are safe to try on your own before scheduling service:

Press the reset button. It’s a small red or black button on the bottom of the disposal unit. If the motor overloaded, pressing this may restore power. If it trips again immediately, stop using the unit and call.

Check the breaker. The disposal runs on its own circuit in most homes. If the breaker has tripped, reset it. If it trips again, the motor or wiring has an issue that needs professional attention.

Never put your hand inside the disposal. Even when the unit is off, the grinding components are sharp. If something is jammed, a plumber has the tools to clear it safely without risking injury.

Stop running a disposal that sounds wrong. Metallic scraping, loud grinding that’s different from normal operation, or a high-pitched whine all mean something is wrong. Continuing to run it can turn a repairable problem into a motor replacement.

Why Choose Pineapple Plumbing for Disposal Work

We diagnose before we recommend. We check the motor, the mounting, the drain connection, and the dishwasher line before telling you whether to repair or replace. If a $15 fix solves the problem, that’s what we’ll recommend.

Written estimates before work begins. You’ll know the cost before we start. No surprises.

We check what’s connected to the disposal, not just the disposal itself. A disposal that’s been leaking into the cabinet may have caused water damage to the floor, the connections, or the drain line below. We look at the full picture.

Locally owned, not a franchise. Austin Holcomb and Austin Webb answer for every job with their own names. The person who shows up is a Pineapple Plumbing plumber, not a subcontractor from a dispatch network.

100% satisfaction guarantee. We stand behind every repair and installation.

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Call Center

+1 843-739-7438

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Hours

Monday – Sunday

Open 24 Hours

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Common Questions

Common Questions Charleston Homeowners Ask Us

Why is my garbage disposal humming but not spinning?

Something is jammed between the grinding plate and the housing wall, preventing the motor from turning. The motor is energized (which is why you hear the hum) but can't rotate. Turn the disposal off immediately. Running it while jammed overheats the motor and can cause permanent damage. A plumber can clear the jam and check whether the motor sustained heat damage.

How long does a garbage disposal typically last?

Most residential garbage disposals last 8 to 12 years with normal use and proper maintenance. Units that are used heavily, fed hard or fibrous foods regularly, or run without adequate water may wear out sooner. If your disposal is approaching 10 years old and starting to jam, leak, or lose grinding power, replacement is usually more practical than continued repair.

Can a leaking garbage disposal be repaired?

It depends on where the leak is coming from. A leak at the sink flange can usually be fixed by resealing the mounting. A leak at the drain or dishwasher connection is typically a loose fitting. A leak from the body of the disposal itself means the housing has cracked or corroded, and the unit needs to be replaced.

Is it better to repair or replace a garbage disposal?

If the problem is a jam, a loose connection, or a failed seal, repair is usually the right call, especially if the unit is under 5 years old. If the motor has failed, the housing is cracked, the unit is over 8 years old and requiring repeated service, or the repair cost approaches half the price of a new unit installed, replacement is the better investment.

Why does my kitchen sink back up when I run the disposal?

The blockage is usually in the drain line below the disposal, not in the disposal itself. Running the disposal pushes food waste into a drain that's already partially blocked. The fix is clearing the downstream drain. If the problem recurs, a professional drain evaluation can identify the underlying cause.

Can you install a garbage disposal in a sink that doesn't have one?

Yes. Adding a disposal to a sink that wasn't originally configured for one requires modifying the drain setup, installing a new sink flange and mounting assembly, and connecting the drain and dishwasher lines. The plumbing modifications are straightforward for most standard kitchen sinks.

How much does garbage disposal repair or installation cost?

Cost varies depending on whether it's a repair, a replacement, or a new installation, and what parts or modifications are needed. Factors include the unit itself, the condition of existing connections, whether the mounting system is compatible, and whether drain modifications are required. We provide a written estimate that covers the full scope before any work begins.

What foods should I avoid putting down a garbage disposal?

Avoid grease, cooking oil, bones, coffee grounds, eggshells, fibrous foods like celery or corn husks, and large amounts of starchy food such as pasta or rice. These materials can jam the disposal, coat the drain line, or contribute to recurring clogs. Feed small amounts of suitable food waste gradually while running plenty of cold water.

Book an Appointment

Get Your Kitchen Running Again

A broken garbage disposal doesn’t have to ruin your day. Call Pineapple Plumbing at (843) 739-7438 or fill out the form below. We’ll diagnose the problem, explain whether repair or replacement makes the most sense, and provide a clear price before any work begins.

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Testimonial

Customer Experiences That Inspire Confidence

      EXCELLENT  
   Based on 50 reviews 
    
 
 
 
   
 
 
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   Clay Wilklow 
 
 
 
 Trustindex verifies that the original source of the review is Google. Austin was very helpful and knowledgeable. Took his time to explain my options and walk me through the process of my repairs.
  
 
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   Richard Welliver 
 
 
 
 Trustindex verifies that the original source of the review is Google. Pineapple Plumbing recently installed an in‑ground gas line for a pool heater, and their work was exceptional. Their precision, professionalism, and depth of knowledge clearly differentiate them from others in the field. I’m eager to recommend them and continue using Pineapple Plumbing for future repairs and projects.
  
 
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   Richard J 
 
 
 
 Trustindex verifies that the original source of the review is Google. Austin from Pineapple Plumbing replaced my hot water heater. His courteous professional manner was second to none. Got same day service with top quality workmanship and service at a fair price. I give Pineapple Plumbing my highest recommendation!
  
 
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   Kevin Hunholz 
 
 
 
 Trustindex verifies that the original source of the review is Google. They were great and very professional! Looking at the job once completed, you can tell they took their time! As well you can tell they did the job as if they were doing it for their own home, which goes a long way. Thank you!
  
 
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   Jennifer Robinson 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great people, fast response and excellent work! I highly recommend!
  
 
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   Caroline Desjarlais 
 
 
 
 Trustindex verifies that the original source of the review is Google. These guys are amazing! I called due to a clogged drain and they came out the next day. They even stayed until late evening to ensure the problem was resolved that day. All the technicians were friendly and communicated upon arrival. One of the owners even called to follow up from the visit. I have already recommended them to several people and will continue to highly recommend them to anyone in need of plumbing services.
  
 
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   4pfcam_ 
 
 
 
 Trustindex verifies that the original source of the review is Google. I had my water heater drained as it was having problems keeping my water hot Austin was great at communicating what needed to be done and identifying the problem throughly !
  
 
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   D Jones 
 
 
 
 Trustindex verifies that the original source of the review is Google. I just have to say first and foremost Austin was very professional, kind, knowledgeable,and listen to me.Before I called Pineapple Plumding another company came out, so to make a long story short they were going to charge me $700.00. Sent him on his way.And called Pineapple Plumding.Came out the same day.Austin Looked everthing over and sad Everthing is fine.I just saved $700.00 :) Thank You so much Austin and Pineapple Pluming.You will be my forever Plumbing company.Honest Companies do not come by much enymore. This Company is one and a million. Sincerely Mrs. Jones :)
  
 
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   Amelia Something 
 
 
 
 Trustindex verifies that the original source of the review is Google. So I posted a 5⭐️ review a month or so ago. I had all of my pipes re-done and some fixtures replaced by these wonderful people. Here we are a month later and somehow I have managed to loosen my kitchen sink. I txt them at noon, embarrassed I might add, to need help with something so frivolous. By 2 pm Austin showed up to my house to tighten it, all the while assuring me it was his pleasure and wouldn’t accept a dime from me, as it was a part of my warranty. I will forever suggest these guys to everyone I know and am so grateful they are who I chose when there are so many options out there🥰