How Much Is Garbage Disposal Installation Cost?

Garbage disposals make kitchen cleanup faster, easier, and more sanitary by breaking down food waste into small particles that can safely flow through your plumbing system. Whether you’re replacing an old unit or installing one for the first time, it’s natural to wonder how much garbage disposal installation will cost. The total price can vary widely depending on the type of disposal you choose, labor rates, and any additional plumbing or electrical work needed. This guide breaks down everything you need to know about garbage disposal installation costs, from average prices to factors that affect them, so you can plan your budget with confidence.

Average Garbage Disposal Installation Cost

The average cost of garbage disposal installation ranges from $150 to $500, depending on your location, the unit’s quality, and the complexity of the job. Basic models and simple installations tend to cost less, while premium models or first-time installations requiring extra wiring or plumbing will cost more.
Here’s a general breakdown:

• Garbage disposal unit: $75 to $300
• Professional installation labor: $75 to $200
• Total cost (unit + installation): $150 to $500

If you already have a garbage disposal and just need a replacement, expect the cost to be on the lower end. However, if it’s a new installation with no existing setup, the price can rise due to additional wiring or plumbing work.

Cost by Type of Garbage Disposal

There are two main types of garbage disposals: continuous feed and batch feed. Each type comes with its own features and price range.

Continuous Feed Garbage Disposals

Continuous feed models are the most common type found in homes. They operate as long as the switch is on and can handle a steady stream of food waste.

• Average unit cost: $75 to $250
• Installation cost: $75 to $150
• Total average cost: $150 to $400
  These models are convenient, affordable, and easy to use, making them a popular choice for most households.

Batch Feed Garbage Disposals

Batch feed models operate only when a cover is placed over the disposal opening, offering more safety but less convenience. They’re ideal for families with children or for homeowners who prefer an added safety feature.

• Average unit cost: $150 to $300
• Installation cost: $100 to $200
• Total average cost: $250 to $500
  While slightly more expensive, batch feed disposals provide peace of mind and are often quieter than continuous feed models.

Factors That Affect Garbage Disposal Installation Cost

The cost of garbage disposal installation can fluctuate depending on several factors. Understanding these will help you anticipate what to expect and identify areas where you might save money.

1. Whether It’s a Replacement or a New Installation

Replacing an old unit is typically simpler and less costly because the plumbing and wiring are already in place. New installations, on the other hand, may require adding an outlet, running electrical wiring, or modifying the sink and drain lines—all of which increase labor time and cost.

2. Type of Garbage Disposal

As mentioned earlier, continuous feed disposals tend to be more budget-friendly, while batch feed models cost more. Additionally, higher horsepower disposals designed for heavy-duty grinding will add to the total cost.

3. Brand and Model

Garbage disposal prices vary by brand and model. Premium brands like InSinkErator, Moen, and Waste King offer models with advanced features such as sound insulation, stainless steel grinding components, and jam-resistant mechanisms. These features can improve performance and longevity but come at a higher price.

4. Labor Rates

Labor costs for garbage disposal installation vary depending on where you live. Plumbers typically charge between $75 and $200 per hour. If the installation is straightforward, it may only take an hour, but complex setups could require additional time. Electricians may also be needed if new wiring or outlets must be installed, adding another $50 to $150 per hour.

5. Electrical and Plumbing Modifications

If your kitchen doesn’t already have a power source under the sink, an electrician will need to install one. Similarly, if your plumbing needs adjustments to accommodate the disposal, a plumber will handle that work. These modifications can add anywhere from $100 to $500 to the total cost.

6. Disposal of the Old Unit

If you’re replacing an existing garbage disposal, some installers may charge a small fee—usually $20 to $50—to remove and dispose of the old unit. You can save this fee by disposing of it yourself if your local waste facility allows it.

DIY vs. Professional Garbage Disposal Installation

If you’re handy with tools, you might consider installing a garbage disposal yourself. A DIY installation can save on labor costs, but it’s not always the best option for everyone.

DIY Installation

For homeowners with basic plumbing and electrical experience, installing a garbage disposal can be a doable project. Most units come with instructions and mounting hardware. However, mistakes can lead to leaks, electrical hazards, or even voided warranties.
Pros:

• Save $75 to $200 on labor
• Learn a valuable skill
  Cons:
• Risk of incorrect installation
• May require specialized tools
• Electrical work can be dangerous without proper experience

Professional Installation

Hiring a professional plumber or electrician ensures the job is done safely and correctly. They’ll also test the system for leaks and proper operation before finishing.
Pros:

• Safe, code-compliant installation
• Warranty protection
• Time savings
  Cons:
• Higher upfront cost

In most cases, professional installation is worth the investment, especially if your kitchen setup is complex or if you’re installing a unit for the first time.

Additional Costs to Consider

When budgeting for garbage disposal installation, there are some additional costs you might encounter depending on your situation.

Electrical Work

If your sink area doesn’t have a dedicated power source, an electrician may need to install a new outlet. This can cost between $100 and $250, depending on the complexity.

Plumbing Adjustments

If your drain lines or sink flanges aren’t compatible with the new disposal, adjustments or replacements may be necessary. These typically cost between $50 and $150.

Sink and Countertop Modifications

In some older homes, the sink or countertop may need minor alterations to fit a modern disposal. These adjustments could add another $50 to $200.

Permits

While not always required, some municipalities may require a permit for electrical or plumbing modifications. Permit fees can range from $25 to $100.

Tips for Saving Money on Garbage Disposal Installation

Garbage disposal installation doesn’t have to break your budget. Here are some tips to help you save:

1. Purchase the unit yourself – Buying your disposal directly from a retailer or during a sale can be cheaper than purchasing through an installer.
2. Choose the right model – A mid-range unit often offers a good balance between performance and price.
3. Get multiple quotes – Compare pricing from several local plumbers or handymen to find the best rate.
4. Bundle installations – If you’re already hiring a plumber for other work, add your disposal installation to the same job to save on labor costs.
5. Reuse existing components – If your mounting hardware or sink flange is in good shape, reuse them to avoid extra costs.

How Long Does Installation Take?

A standard garbage disposal installation usually takes one to two hours for a professional. Replacements are faster since the setup is already in place. However, first-time installations that require electrical or plumbing work can take several hours.

Signs It’s Time to Replace Your Garbage Disposal

If you already have a garbage disposal but it’s not working as efficiently as before, you may be wondering whether to repair or replace it. Here are signs it might be time for a new one:

• Frequent clogs or jams
• Persistent bad odors
• Leaks under the sink
• Grinding noises or humming sounds
• The unit is more than 10 years old

If repairs cost more than half the price of a new unit, replacement is usually the smarter choice.

Conclusion

So, how much is the garbage disposal installation cost? On average, homeowners spend between $150 and $500, depending on the type of unit, labor rates, and any additional work required. Replacing an existing unit is typically more affordable, while new installations can cost more due to electrical or plumbing modifications. Investing in a professional installation ensures safety, efficiency, and long-term reliability, giving you peace of mind every time you use your kitchen sink.

By understanding the factors that affect garbage disposal installation costs and planning accordingly, you can make a confident, cost-effective decision that keeps your kitchen running smoothly.