The 7 Best Quietest Garbage Disposal Units

The garbage disposal was first introduced in 1927 by the inventor Wisconsin. Since then these units became popular in most households. They were designed to effectively grind through food scraps pulverizing it so it could easily pass-through the sewer systems. This means of food waste grinding gives the homeowners a cleaner kitchen with fewer odors and saves them from taking continuous trips to the outside trash can.

It’s been proven that approximately 10 – 20% of purchased food is been disposed of in one form or another. This creates a burden on municipal waste utilities. Most of this food waste eventually lands on the landfills where it takes longer to decompose, which can lead to unsafe environments for nearby homes and wandering pets.

When the first disposals were introduced it created a horrific sound when it was switched on, but today’s modern garbage disposals are manufactured with the latest technology to dampen sound too little to no noise.

With innovative technology that’s been put into place into these units you as a buyer can expect to dick deeper into your pockets. The more advanced the unit the more you will have to pay. The bottom line: whether you are looking for a garbage disposal that grinds the toughest food waste and performs a quiet operation you will find it here.

As an Amazon Associate, I earn from qualifying purchases.

The top 7 best quietest garbage disposal units are:

  1. Waste King Legend Series 1.0-Horsepower Continuous-Feed
  2. InSinkErator Evolution Compact ¾ HP
  3. Waste King 1.0 Horsepower Garbage Disposal
  4. InSinkErator Evolution Septic Assist
  5. Waste King 9980 Garbage Disposal
  6. Moen GXS75C ¾ HP Garbage Disposal
  7. Whirlpool ½ HP Garbage Disposal

Read the features and extended reviews below.

Waste King Legend Series 1.0-Horsepower Continuous-Feed Garbage Disposal

Quietest Garbage Disposal

Quietest Garbage Disposal


The Waste King L-8000 uses a powerful 1 HP motor that rotates at a speed of 2800 RPM. It quickly and efficiently grinds up the toughest food waste in a matter of minutes. This unique design includes an insulated stainless steel chamber to compress the amount of noise it produces. This unit also consists of an easy mount system for quick installation a long 36-inch power cord and a removable splash guard.

The Waste King Legend is a continuous fee operation; it is compact, lightweight. Safety features include a manual reset button while the unit is safe to use with your existing septic tank. Furthermore, Waste King offers a lifetime limited in-home warranty on this unit.


  • Hight speed motor: 2800 RPM (115v) permanent magnet motor
  • 20-year protection
  • Easy to install, no expertise needed!
  • Continuous feed disposal
  • Manual reset button
  • Can be used in combination with septic tank


  • Warranty doesn’t include corrosion/leaking
  • Some people do find it difficult to install

InSinkErator Evolution Compact ¾ HP

Best garbage disposal unit

Best garbage disposal unit


InSinkErator is has become a household name with its top of the line and quality garbage disposals. The Evolution is manufactured with technology that dampens sound levels to the bare minimum. This sound seal technology delivers a quieter performance than standard disposals.

On top of that, it is installed with multigrind technology to pulverize the toughest foods in seconds. It has a compact design with a massive 36 oz grinding chamber that is manufactured from stainless steel for longevity. The overall height of this unit is 12.12 inches and InSinkErator offers a full 4-year In-Home Limited Warranty.


  • Space-efficient
  • Quiet but powerful
  • The brand makes disposal systems since 1927
  • Replace your InSinkErator quick and easy with Quick Lock mount
  • MultiGrind technology
  • 4-year warranty


  • be sure to check if this model works with your model number

Waste King 1.0 Horsepower Garbage Disposal

Best kitchen sink garbage disposal

Best kitchen sink garbage disposal


One of the quietest garbage disposal units on the market is from Waste King Legend. This high powered disposal features an impressive 1.0 horsepower motor that will crush just about anything you through at it. The stainless steel blades spin at 2700 RPM when it’s running at full capacity which will take not more than 4 seconds.

The Knight features Waste King One Time Pass Technology that offers more power per pound.

This Waste King Knight is a continuous garbage disposal which means you can add food waste while the disposal is in operation.

A glass-filled nylon chamber protects this unit’s chamber from rust and corrosion. Also, the stainless steel grinding components is insulated for a quieter grind. The Knight includes Waste King’s Snap and Lock mounting system to allow easy replacement for most existing disposers. The disposer is safe for properly sized septic tanks and comes with a 36-inch power cord.


  • HIGH-SPEED MOTOR: The 1 HP, 2800 RPM (115v) permanent magnet motor
  • Standard 3-bolt mount
  • Lifetime in-home service warranty
  • Easy install, no expertise needed
  • Stainless steel grind components
  • Continuous feed disposal
  • Heavy-duty
  • With power cord


  •  Not as quiet as advertised

InSinkErator Evolution Septic Assist

Best undermount kitchen sink garbage disposal


The Evolution Septic Assist is specifically designed for a home with a septic tank. A powerful ¾ HP motor assists in the grinding of tough food waste while the Exclusive Bio-Charge Injection Technology utilizes a natural micro-organism to help break down food waste.

The InSinkErator Evolution Septic Assist utilizes a patented sound seal technology to help keep noise levels to a bare minimum when in the grinding stage.

Unlike most outdated garbage disposal units, the Evolution uses Multi-Grind Technology to help with food waste break down. This will ensure lesser sewerage blocking from bigger chunks of food waste. For safety purposes, the unit is installed with a manual reset button in case of those unforeseen jams.

The InSinkErator Evolution Septic Assist food waste disposal includes an exclusive, ‘We Come to You’ 4-Year In-Home Limited Warranty for added peace of mind.


  • Dura-Drive motor
  • Galvanized steel
  • Advanced noise reduction
  • Easy swap installation (if you have an InSinkErator at the moment)
  • With septic assist
  • MultiGrind Technology
  • USA brand
  • 4-Year We Come to You In-Home Limited Warranty


  • Troubles with the septic assist might occur


Waste King 9980 Garbage Disposal

Best Low Profile Garbage Disposal

Best Low Profile Garbage Disposal

Pro 3-Bolt, 1 Horsepower Disposal

Keep your kitchen sink clean from food scraps with the powerful Waste King 9980 Garbage Disposal. The unit is energy efficient, saving you on the electric bill, while the powerful motor offers an impressive grind. The unit is compact, easy to install, and reliable.

With the 3 bolt-mounting system installation can be finished in a matter of minutes. Plus all the necessary hardware is included to make to streamline the installation process and accompanying the unit is the pre-installed 32-inch power cord.

Grind the toughest food waste with Waste King 9980 that delivers 1 HP and stainless steel impellers that spin at 2800 RPM. The motor is able to reach full speed nearly instantly, reducing the possibility of jams.

Start saving with the Waste King 9980 that grinds up food waste as soon as it lands in the chamber. This produces shorter run times and reduces footprint while cutting on electricity bills.

This unit wouldn’t be reliable with a corrosion-proof polymer chamber and stainless steel components to extend the lifespan of the unit. This kitchen sink disposal is an excellent waste disposal unit that will make you’re your cleaning efforts easier.


  • 1 HP, 2800 RPM (115 volts) permanent magnet motor
  • Manual reset in case of overload
  • Continuous feed
  • Pre-installed cord, no electrical expertise needed
  • Stainless steel grind components
  • 20-year warranty
  • USA brand


  • Make sure you check your unit upon arrival. In some cases, the products arrive damaged or used.

Moen GXS75C ¾ HP Garbage Disposal

Best compact garbage disposal

Best compact garbage disposal


Complete your waste disposal problems with the Moen ¾ HP Garbage Disposal Unit. This dependable waste disposal unit delivers an astonishing 2700 RPM with its high-speed Vortex permanent magnet motor.

It features a universal express mount system that fits most 3 bolt mounting systems. Installation is made easy through the lock and twist installation method combined with the UXM system. The streamlined unit is compact in design and will fit most kitchen sinks without any alterations being done on your kitchen sink. It also features Soundshield technology to reduce noise levels without sacrificing performance.

The Vortex motor is the powerhouse behind the GXS75C Garbage Disposal’s exceptional grinding action. The permanent magnet motor operates at full speed the moment it is powered, similar to many power tools. With speeds up to 2,700 RPM, the high-performance permanent magnet motor is designed to help reduce jamming.

Compatible with most three-bolt mounting assemblies, the Universal Xpress Mount is quick and easy to install. Simply position the garbage disposal, twist it, and lock it into place. The compact, lighter weight design also makes for easier installation and frees up valuable space under your sink.

The unit comes with a pre-installed power cord, thus saving you money and time.


  • high-speed Vortex motor
  • Removable splash guard
  • With a pre-installed power cord
  • Polished Stainless Drain stopper
  • Easy installation
  • Soundshield design
  • Continues feed
  • Lifetime limited warranty


  • Not the cheapest option

Whirlpool ½ HP Garbage Disposal

best sink waste disposal

best sink waste disposal


This 1/2-HP in-sink disposer works effortlessly and efficiently. It features a continuous-feed operation to help minimize jamming. Food is reduced to fine cuttings and whisked down the drain without the need to pause and check for clogging. An overload protector with a manual reset is built to keep your food disposal process effortless. Food waste disposal is fast, tidy, and easy.


  • 2600 rpm high-speed permanent-magnet DC motor
  • Stainless steel blades
  • Anti-creeping air switch
  • Waterproof leaking detection
  • Extra-low noise
  • 3-year protection for the motor, 1-year protection overall


  • Low warranty in comparison to the other options

Buying Guide – Choosing the Best Quietest Garbage Disposal for 2020

Choosing the quietest garbage disposal isn’t as hard as one can imagine. By following a simple procedure that we will outline below you will be able to find the right garbage disposal for your situation.

1. Capacity and Power

A quality garbage disposal will grind through food waste without hesitation. This can only be accomplished through the amount of power your device will have. The power options are described as horsepower. There are 3 different horsepower levels to choose from.

1 HP

The 1 HP garbage disposals are the most powerful disposal on the market in terms of grinding food waste and speed. These units are great for big families who need a lot of grinding needs. The best 1 HP garbage disposal units on the market today are the Waste King Legend L-8000, InSinkErator Evolution Excel and the Waste King A1SPC Knight.

¾ HP

The ¾ HP garbage disposals are great for medium size families. 4 – 6 Members of the family can easily use these units on a regular basis. The grinding power is more than enough to slice through small chicken bones. Some of these units are installed with sound seal technology, which dampens the sound levels when in operation. The most popular garbage disposals which have a ¾ HP motor are the InSinkErator Evolution Compact, InSinkErator Pro750, InSinkErator Septic Assist, and the Waste King Legend L-3300.

½ HP

The ½ HP motor garbage disposal units are the cheapest garbage disposals on the market with less power. These units are best for 1 – 2 persons living in a small apartment or condor where they don’t dispose of large quantities of food waste. The most popular in this range is the InSinkErator Badger 5 and the Waste King Legend L-111.

2. Continuous Feed vs Batch Feed Garbage Disposal

There are two types of feed operation garbage disposals on the market. These are called the continuous feed and the batch feed garbage disposal units.

A continuous feed garbage disposal unit grinds food waste from the second when you switch on the power. These types of units are most preferred by consumers because it saves time and has a hassle-free operation.

The batch feed garbage disposal units start the operation when the cover goes on the disposal entrance. These units are much safer and will prevent small cutleries from falling down the unit.

3. Grinding stage

Looking back a few years we’ve only seen garbage disposals with one grinding stage but modern garbage disposals like the InSinkErator Evolution Excel are manufactured with 3 grinding stages.
Grinding stages is important in grinding food waste. The smaller the waste is grinded the fewer problems it will have on your sewerage pipes in terms of clogging or jamming.

4. Noise and Vibration

A quality garbage disposal should make the least amount of noise when in operation. It’s best to seek out a quiet garbage disposal with the least vibration and close to zero sound interference. These modern-day garbage disposals are manufactured with sound seal technology to reduce the impact as much as possible. Keep in mind that these types of units will cost more than the older types of waste disposal units.

5. Mounting

InSinkErator’s Quick-Lock mounting system

InSinkErator has a universal quick-lock mounting system that used with most of its disposal units. This will make it easier to replace your old disposal with a new one. Installing your new disposal will, therefore, take less than 15 minutes. The quick lock mounting systems are manufactured from stainless steel and can be easily replaced with an existing disposal mounting.

Waste King’s EZ vs 3 Bold Mounting

The Waste King Garbage disposal manufacturer has produced two types of mounting systems to choose from. The Waste King EZ and the 3 bolt mounting system.

The EZ mount system – comes with a removable splash guard with plastic and aluminum mounting components. Many users prefer the EZ mount system because installation is made easy and while the removable splash guard makes the disposal easy to clean.

The 3 bolt mounting system – is made purely from stainless steel and is missing the removable splash guard. Even though most users prefer the EZ mount system the 3 bolt system is made durable because of the stainless steel components.

6. Durability – Corrosion Proof Chamber

Durability plays an important role in the manufacturing process of these units. As a reminder: garbage disposals will be continuously underwater, therefore, it is important that your disposal has corrosion and rustproof chamber.

Jam sensor & Automatic Reverse grinding technology

Whenever your disposal jams it could, in the long run, lead to internal component failures. That is why it is important to invest in a disposal that is manufactured with an anti-jam sensor or auto-reverse technology. Only InSinkErator Evolution Series Disposal Units comes with this technology.

7. Installation

Most people get anxious by the thoughts of installing a garbage disposal. Yes, this is human nature but choosing a disposal that comes with clear instructions and all the necessary equipment can make the installation process much easier. Replacing your old disposal with a new one can make your task much easier if you already have an InSinkErator garbage disposal unit. Their units come with a quick-lock mounting system for easy installation.

8. Size

Size does matter and you don’t want to purchase a waste disposal unit that will not fit under your kitchen sink. First, check the available space under your sink, check the dimension of your preferred disposal before making a purchase. You don’t want to end up with a disposal that is oversized and return it to the vendor. This can lead to wasted time and money.

9. Septic Tank Safe

Most modern-day garbage disposal units are septic tank safe but make double sure that you will be able to use your newly purchased disposal with your existing septic tank.

10. Warranty & Support

Last but not least is warranty and support. Some top brand garbage disposals come with a 10-year warranty and In-Home Service. It is recommended to choose one with a long warranty and good customer support.

The Bottom Line

A quality garbage disposal should have all the features to provide the user with an exceptional experience in the kitchen with disposing of food waste in the most effective way possible. Waste disposal is not only dependent on a quality garbage disposal but combining the quietest garbage disposal with a quality kitchen trash can and an outdoor compost bin to produce nutritious compost for your garden can lead to the effective management of food waste.


I'm Wayne, owner of I'm a father of 2. I love reviewing products and showcasing the very best in my best of review lists. I want people to make an informative decision by going through these reviews before purchasing their selected products.

Leave a Reply

Recent Posts