The Comprehensive Guide of 2024. How Much Does It Cost to Replace a Garbage Disposal?


A garbage disposal is a device that is installed under the kitchen sink and grinds food waste into small pieces that can be flushed down the drain. A garbage disposal can help reduce the amount of trash that goes to landfills, prevent clogs and odors in the pipes, and make cleaning the dishes easier. However, like any appliance, a garbage disposal can wear out over time and need to be replaced. The average cost of replacing a garbage disposal in 2024 is around $500, depending on the type, size, and installation of the unit.

When to Replace a Garbage Disposal

How do you determine when it’s time to Replace a Garbage Disposal? Here are several common indicators that suggest your garbage disposal isn’t functioning properly:

  • Leaks: The presence of water dripping or pooling beneath your sink may signal a crack or loose connection in your garbage disposal. Address leaks promptly to prevent damage to cabinets, floors, and walls.
  • Clogs: Inefficient grinding of food waste by your garbage disposal can result in drain or pipe clogs, leading to backups, overflows, and unpleasant odors in your kitchen. Avoid disposing of hard, fibrous, or greasy items that could damage blades or jam the motor.
  • Noises: Unusual or loud sounds emitted by your garbage disposal upon activation may indicate blade obstructions or motor failure. Turn off power and inspect the chamber for foreign objects. If the issue persists or no obstruction is found, it may necessitate Replace a Garbage Disposal.
  • Odors: Persistent foul odors emanating from your garbage disposal, even after running water and soap through it, may signify trapped food particles in the chamber or pipes. Attempt cleaning with baking soda, vinegar, or citrus peels, but if the problem persists, consider replacement.

Before opting to Replace a Garbage Disposal, attempt troubleshooting minor issues. Verify the power switch, reset button, and circuit breaker for electrical problems. Use a plunger or snake to clear drain or pipe clogs. If uncertain about your disposal’s condition or repair methods, seek guidance from a professional technician for diagnosis and resolution.

Professional Garbage Disposal Replacement Cost

The cost of replacing a garbage disposal consists of two components: the cost of the unit and the cost of labor. The cost of the unit depends on the type, size, and material of the garbage disposal. The cost of labor depends on the size and complexity of the installation.

1.      Type of Garbage Disposal

There are two primary types of garbage disposals: continuous feed and batch feed. Continuous feed disposals, which typically cost around $200 on average, are more prevalent and enable you to dispose of waste continuously while the power switch is on. Batch feed disposals, averaging around $300, require you to fill the chamber with waste and cover it with a stopper before activating. They offer enhanced safety and quieter operation compared to continuous feed disposals. When considering replacing a Garbage Disposal, understanding the differences between these types can help you make an informed decision.

2.      Size of Garbage Disposal

The size of the garbage disposal refers to its horsepower (HP), which determines how powerful and fast it can grind food waste. The higher the horsepower, the more efficient and durable the unit is. However, higher horsepower also means higher price and energy consumption. The most common sizes for residential use are 1/3 HP, 1/2 HP, 3/4 HP, and 1 HP. The average prices for these sizes are:

  • 1/3 HP: $50 – $100
  • 1/2 HP: $70 – $150
  • 3/4 HP: $100 – $250
  • 1 HP: $150 – $350

3.      Material of Garbage Disposal

Garbage disposals come in various materials, with aluminum and stainless steel being the most prevalent. Aluminum options are typically cheaper than their stainless steel counterparts, yet they corrode more rapidly and have a shorter lifespan. Conversely, stainless steel garbage disposals are pricier initially, but they offer superior resistance to rust and boast longer durability. When considering which to install, it’s important to weigh the benefits and drawbacks of each material carefully, especially if you’re planning to replace a garbage disposal.

  • Aluminum garbage disposals typically cost between $70 and $350.
  • Stainless steel garbage disposals typically cost between $400 and $1,200.


4.      Cost of Labor

The cost of labor to replace a garbage disposal hinges on the size and intricacy of the installation. For smaller and simpler installations, a general contractor or handyman can typically handle the job, charging between $50 and $100 per hour. However, for larger and more complex installations, the expertise of an electrician or plumber may be necessary, with hourly rates ranging from $75 to $150. On average, the installation of a garbage disposal takes about one hour, though this timeframe can fluctuate depending on the specific circumstances.

5.      Examples of Prices for Different Brands and Models of Garbage Disposals

Here are some examples of prices for different brands and models of garbage disposals, based on web search results  :

  • InSinkErator Badger 5 1/2 HP Continuous Feed Garbage Disposal: $109
  • Waste King L-8000 1 HP Continuous Feed Garbage Disposal: $119
  • Moen GX50C 1/2 HP Continuous Feed Garbage Disposal: $129
  • InSinkErator Evolution Compact 3/4 HP Continuous Feed Garbage Disposal: $199
  • KitchenAid KCDB250G 1/2 HP Continuous Feed Garbage Disposal: $99
  • Waste King L-2600 1/2 HP Continuous Feed Garbage Disposal: $79
  • InSinkErator Evolution Excel 1 HP Continuous Feed Garbage Disposal: $379
  • Moen GXS75C 3/4 HP Batch Feed Garbage Disposal: $199

Additional Costs

Before you replace your garbage disposal, you should be aware of some possible additional costs that may arise, such as:

  • When it comes to replacing a garbage disposal, there are several key considerations to keep in mind:
  • Electrical wiring: If your old disposal is hardwired into your home’s electrical system, you might need to install an outlet and a cord for your new disposal. This typically ranges between $50 and $150, depending on the complexity of the wiring and local labor rates. Alternatively, you could opt for a disposal compatible with your existing wiring and use wire nuts to connect it. However, this approach may not meet local code requirements and could pose a safety hazard.
  • Plumbing modifications: If your new disposal differs in size or shape from the old one, adjustments to the plumbing pipes under the sink may be necessary to ensure a proper fit. Costs for this can vary from $20 to $150, depending on the extent of the work and required materials. Additionally, you may need to replace the sink flange, rubber gasket, and mounting ring connecting the disposal to the sink drain. While these parts often come with the new disposal, they can cost between $10 and $40 if purchased separately.
  • Permits: Depending on local regulations, obtaining a permit from your city or county might be necessary before replacing a garbage disposal. Permit costs can range from $50 to $200, depending on the project’s type and scope. Moreover, passing an inspection after installation could be required.
  • Disposal fees: Properly disposing of your old unit might entail a fee ranging from $10 to $50, contingent upon its weight, size, and local landfill charges. Some retailers or plumbers may offer to haul away your old disposal for free or for a small fee when you purchase or install a new one.
  • Installation fees: If you enlist the services of a plumber or handyman for replacing a garbage disposal, you’ll incur labor and expertise charges. Typically, this ranges from $150 to $400, depending on the job’s complexity and local rates. Plumbers may charge hourly or a flat fee for their services.

The total additional costs of replacing a garbage disposal can range from $200 to $950, depending on these factors. However, these are only estimates and your actual costs may vary depending on your specific situation.

How to Save Money on Additional Costs

If you want to save money on these additional costs, here are some tips:

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  • Replace a Garbage Disposal: Before selecting a contractor to replace a garbage disposal, it’s wise to compare quotes from various professionals. Aim to gather at least three estimates from different plumbers or handymen in your vicinity. This approach aids in securing the best deal and ensures you’re not overpaying for the service. Additionally, consider perusing online reviews and ratings to identify reputable and reliable contractors.
  • Consider DIY: If you possess basic plumbing and electrical skills, you might contemplate replacing a garbage disposal yourself. Undertaking this task can lead to savings on installation fees and permits. However, proceed only if you’re confident in your abilities and diligently adhere to the manufacturer’s instructions. Before commencing work, remember to switch off the power and water supply. Moreover, prioritize safety by wearing gloves and eye protection.
  • Recycle the old unit: Instead of discarding your old disposal, explore options for recycling or donating it to a local charity or organization that accepts used appliances. Opting for this route not only saves on disposal fees but also contributes to reducing waste and lessening environmental impact.

How to Replace a Garbage Disposal DIY

A garbage disposal is a valuable appliance that assists in disposing of food waste in your kitchen sink. However, over time or due to damage or malfunction, it may necessitate replacement. Replace a Garbage Disposal This task can be undertaken as a DIY project or delegated to a professional plumber, depending on your skills and preferences. Below are steps to consider whether you opt to replace your garbage disposal yourself or enlist the help of a professional.

1. Things to Try Before Replacing Your Garbage Disposal

Before you decide to replace your garbage disposal, you should try some tips on how to extend its life and avoid unnecessary replacements, such as:

  • Clean it regularly: You should clean your garbage disposal at least once a month to remove any food residue, grease, or odors that may build up inside it. You can use natural methods such as pouring boiling water, vinegar, baking soda, or lemon juice down the drain while running the disposal. You can also use commercial cleaners designed for garbage disposals, but make sure they are biodegradable and safe for septic systems. To Replace a Garbage Disposal, regular cleaning is essential to maintain its functionality and prevent odors.
  • Use it properly: You should only use your garbage disposal for small amounts of soft food waste that can be easily ground up by the blades. You should avoid putting hard items such as bones, shells, pits, seeds, or metal objects in the disposal, as they can damage the blades or jam the motor. You should also avoid putting fibrous or starchy items such as celery, corn husks, potato peels, or rice in the disposal, as they can clog the pipes or cause overheating. You should always run cold water before, during, and after using the disposal to help flush away the waste and prevent it from sticking to the blades or pipes. Proper usage is key to avoid the need to Replace a Garbage Disposal prematurely.
  • Maintain it well: You should perform some simple repairs or maintenance tasks on your garbage disposal every few months to keep it in good working condition. You can reset the disposal by pressing the red button on the bottom of the unit if it stops working or trips the circuit breaker. You can unclog the disposal by using a plunger, a wrench, or a wooden spoon to dislodge any obstructions in the drain or the flywheel. You can sharpen the blades by throwing some ice cubes or rock salt in the running disposal to scrape off any dullness or rust. Regular maintenance tasks help prolong the lifespan of your garbage disposal and reduce the need to Replace a Garbage Disposal frequently.

However, you should also be aware of some safety precautions when working with a garbage disposal, such as:

  • Unplug it: Before attempting to replace a Garbage Disposal or conduct any maintenance tasks on it, always unplug the unit or switch off the circuit breaker. This precautionary measure ensures safety by preventing accidental injuries or electrocutions from the power supply.
  • Wear gloves: When handling the disposal unit or reaching into the drain, wearing gloves is essential. This protective measure shields your hands from sharp blades and potential bacteria present in the unit or pipes during Garbage Disposal Replacement.
  • Avoid putting your hand in it: Never insert your hand or fingers into the disposal, even when it’s unplugged or turned off. The blades may remain sharp and pose a risk of injury if touched. Instead, use tools like pliers, tongs, or a wooden spoon to retrieve any items that might have fallen into the disposal during Garbage Disposal Replacement.

By following these tips, you may be able to prolong the life of your garbage disposal and avoid replacing it prematurely. However, if your disposal is old, damaged, or malfunctioning beyond repair, you should replace it as soon as possible to prevent further problems such as leaks, clogs, or odors.

2.      How to Replace a Garbage Disposal Step-by-Step

A garbage disposal is a handy appliance that pulverizes food waste into tiny pieces and sends them down the drain. Nevertheless, it may wear out, develop leaks, jam, or produce loud noises over time. If your garbage disposal isn’t functioning correctly, you may have to Replace a Garbage Disposal with a new unit. Here are the steps to Replace a Garbage Disposall yourself

Step 1: Turn Off the Power and Water

Before you start working on the garbage disposal, you need to turn off the power and water supply to avoid electric shock or flooding. Locate the circuit breaker that controls the power to the disposal and switch it off. Then, turn off the water valve under the sink or at the main water supply.

Step 2: Remove the Old Disposal

Open the cabinet under the sink and locate the Garbage Disposal unit. It’s a large cylindrical object connected to the drain and the plumbing pipes. You’ll need to disconnect the discharge tube, which is the pipe responsible for carrying ground waste out of the disposal. Utilize a wrench or pliers to loosen the nuts or fasteners securing the pipe in place, then pull it out.

Subsequently, you’ll have to detach the disposal from the mounting ring, a metal ring linking the disposal to the sink drain. Grip the disposal with one hand and twist the ring counterclockwise with the other hand until it releases. Exercise caution, as the disposal can be heavy and may contain water and food debris.

To complete the replacement of a Garbage Disposal, follow these steps:

  1. Open the cabinet under the sink to access the garbage disposal unit.
  2. Disconnect the discharge tube, the pipe responsible for carrying ground waste out of the disposal, by loosening the nuts or fasteners that hold it in place.
  3. Detach the disposal from the mounting ring, a metal ring connecting the disposal to the sink drain, by twisting it counterclockwise until it releases. Be cautious as the disposal may be heavy and contain water and food debris.

Step 3: Replace the Mounting Hardware

The mounting hardware comprises a sink flange, a mounting ring, and a rubber gasket. The sink flange is a metal piece that fits into the drain hole of the sink. A metal ring, known as the mounting ring, secures the flange to the sink. Additionally, a rubber gasket serves as a seal to prevent leaks between the flange and the sink.

To replace a Garbage Disposal, start by removing the old sink flange from the drain hole. Utilize a screwdriver to loosen and remove the screws holding the mounting ring in place. Then, pry off the old flange using a putty knife or a flathead screwdriver.

Clean the drain hole and apply plumber’s putty around it. Subsequently, insert the new flange into the hole and firmly press it down. Use a rag to wipe off any excess putty. Next, affix the new mounting ring and rubber gasket to the flange from beneath the sink. Tighten the screws evenly until they are snug.

Step 4: Install the New Disposal

Before you install the new disposal, you will need to prepare it for connection. First, check for a dishwasher knockout plug on the side of the disposal. This small metal piece blocks the dishwasher inlet. If you have a dishwasher, you’ll need to remove this plug with a hammer and a screwdriver. If you don’t have a dishwasher, you can leave it in place.

Next, verify if there is an electrical cord attached to your new disposal. If so, you can plug it into an outlet under your sink. If not, you will need to wire it yourself using wire nuts and electrical tape. Follow the manufacturer’s instructions for wiring your disposal.

To Replace a Garbage Disposal, align it with the mounting ring under your sink and twist it clockwise until it locks in place. Ensure it is level and secure. Then, reconnect the discharge tube to your disposal using nuts or fasteners. You may need to cut or adjust the pipe length if it doesn’t fit properly.

Step 5: Test for Leaks and Functionality

After replacing your garbage disposal, you can restore power and water supply and check for leaks and functionality. Run water through the sink and inspect for any drips or wet spots underneath. If you detect any leaks, tighten the connections or apply silicone sealant to remedy them. To verify proper operation of your disposal, plug it in or restore power with the circuit breaker and toggle the switch on the wall or the disposal itself. You should hear a humming sound and observe smooth water drainage. Test by grinding some food scraps to ensure efficient disposal. If your disposal emits unusual noises or jams, immediately switch it off and inspect for obstructions or loose parts.

Congratulations! You have successfully replaced your garbage disposal step by step.


A garbage disposal is a handy appliance that can assist in disposing of food waste easily and conveniently. However, improper usage or neglecting regular maintenance can lead to problems like clogs, odors, leaks, and malfunctions. To prevent such issues and ensure your garbage disposal operates smoothly, adhere to these best practices and frequently asked questions. Additionally, knowing how to replace a garbage disposal can be valuable knowledge in case of severe malfunctions or breakdowns.

1.      Best Practices for Using and Caring for a Garbage Disposal

  • Run cold water into the disposal as you turn it on. This will help lubricate the blades and flush the waste down the drain. Keep the water running for about 30 seconds after you finish grinding to clear any remaining particles. Replace a Garbage Disposal
  • Grind small amounts of food at a time. Don’t overload the disposal with large or hard items that can damage the blades or jam the motor. Break up large scraps before putting them in the disposal.
  • Avoid grease and fibrous foods. Grease can solidify in the pipes and cause clogs, while fibrous foods like celery, corn husks, banana peels, and potato skins can wrap around the blades and prevent them from spinning.
  • Use ice cubes to sharpen the blades and clean the chamber. Once a month, put some ice cubes in the disposal and run it with cold water. The ice will help remove any food residue stuck to the blades and the walls of the chamber. Replace a Garbage Disposal
  • Clean the garbage disposal regularly. You can use baking soda and vinegar, dish soap and water, or citrus peels and salt to deodorize and disinfect the disposal. Just make sure to rinse it well with cold water after each cleaning. Replace a Garbage Disposal

2.      Frequently Asked Questions About Garbage Disposal Maintenance

  • Can Replace a Garbage Disposal ice cubes help clean a garbage disposal? Yes, ice cubes can aid in replacing a garbage disposal by scraping off any food residue from the blades and the chamber. They can also sharpen the blades and enhance their performance.
  • How do you maintain a fresh-smelling garbage disposal? You can keep a garbage disposal smelling fresh by utilizing natural products such as baking soda, vinegar, lemon peels, or orange peels. These items can effectively neutralize odors and impart a pleasant scent.
  • What kind of professional handles replacing a garbage disposal? If you require assistance with replacing a garbage disposal, it’s advisable to reach out to a licensed plumber or an electrician experienced in installing garbage disposals. They can ensure proper connection to your home’s plumbing and electrical systems.


Keeping your garbage disposal in good condition is not difficult if you follow some simple tips and tricks. By using and caring for your disposal correctly, you can prevent clogs, odors, leaks, and malfunctions that can affect its performance and lifespan. You can also save money on repairs or replace a garbage disposal, which can cost an average of $400 in 2024. Having a functional and efficient garbage disposal in your kitchen can make your life easier and more convenient. If you need professional assistance with your garbage disposal replacement project, don’t hesitate to contact a reputable contractor who can offer you quality service and affordable prices.

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