The Life Expectancy of Garbage Disposals (With 15 Examples)

Garbage disposals are a natural part of any household, and probably a stable of your sink. However as the years go on you might realize your garbage disposal isn’t working as well as it used too. You’ve cleaned it, there’s nothing stuck, so what’s slowing it down? Probably its age.

10 years is the average lifespan of garbage disposal. Most plumbers recommend replacing it after this time, as it not only begins to fall apart but there is often new garbage disposal technology that will better improve your home!

The life expectancy of a garbage disposal isn’t a well known fact, and can vary between people, use and brand. Here are a few examples of fluctuating expectancies and what you can do to make it last longer!

What Impacts a Disposal?

Use! If you use your disposal less than others you may realize that yours has lasted longer than normal. This isn’t uncommon, if you use your disposal more, you’re going to wear it down more. Another contribute-r to this would be what exactly you’re putting down your disposal. If you’re putting down things like noodles that may easily be cut up, or whole cucumbers which might not, then your disposal might have a shorter or longer lifespan.

Another impact would be something along the lines of quality. Cheaper disposals are more likely to fall apart faster, and thus are going to need to be replaced sooner. If you have a better, typically more expensive, disposal then you might last longer than others.

Signs of a Deteriorating Disposal

Smell: If your garbage disposal is beginning to smell despite your constant cleaning of it, than it may be a sign of a bigger problem at hand. Food that hasn’t been properly destroyed or ground up it can linger in your system, and begin to smell! If the smell is becoming an issue despite constant cleaning, it may be a signal for a new disposal!

Slowing Down: If you turn on your disposal, and its system doesn’t seem to be moving as fast as normal, that could also be a sign of a deteriorating disposal. When the machine begins to get old it may not work as fast or as well, and may be an indication of either something clogging it, or a need for a new one!

No Longer Grinding Food: If you find that your disposal is no longer grinding up food the way it used to, then it’s definitely a sign it’s time to replace it. The blades may be getting dull, or just not working the way they used to, and that’s when you know it’s time for it to go!

15 Disposals, and Their Lifespan

Before you do ANYTHING, however, you’re going to need a new disposal. It’s important to note that garbage disposals, whilst having an average of a 10-year lifespan, fluctuate. Their life can be based on how often you use them, what you’re using them for, etc. Here is a list of 15 garbage disposals, in no particular order, and their lifespan. These can all be found on Amazon, or on different home websites

  1. InSinkErator Essential XTR 3/4 HP Garbage Disposer: This disposal is top of its class for 2021 and has a 6-year guaranteed warranty, though most report it lasts anywhere between 8 to 10 years
  2. Waste King L-8000 Garbage Disposal: Rated best for kitchens of smaller households, and has a warranty of 5 years. Half the time of the average garbage disposal
  3. InSinkErator Evolution Excel 1 HP Garbage Disposal: This disposal is one of the best high-end disposals, a bit on the pricey-er side but with a warranty of 8 years, and lasting reportedly anywhere between 9 to 11.
  4. Insinkerator Badger 5 1/2 HP Food Waste Disposer: This disposal is best for smaller homes, as it’s a smaller size than most. This disposal also has only a 2-year warranty. Much shorter than most
  5. Moen GXS75C GX Series 3/4 HP Garbage Disposal: This disposal is the best the Moen brand has to offer, and the only complaint is that it’s a little on the louder side. It has a 5-year warranty but can reportedly last up to 8 to 10 years if kept in good condition.
  6. Waste King L-1001 Garbage Disposal: With a fun name and an even funnier price this disposal is one of the most affordable on our list. However cheaper disposal means often cheaper parts, and that still rings true with this one only holding a 2-year warranty
  7. InSinkErator Evolution 3/4 HP Household Garbage Disposal: This disposal is quiet, however, a bit on the larger side. It has a guaranteed 5-year warranty though can last longer according to reviews.
  8. KitchenAid KCDI075B: The KitchenAid is a household name and there’s a reason why. It has a 5-year warranty and glowing reviews from those who have it.
  9. Waste Maid US-WM-658: This 13-pound disposal has the highest warranty amongst all of the other disposals on our list with a guaranteed 10-year warranty. Though it can last even up to 15 years if you treat it well.
  10. InSinkErator Garbage Disposal with Power Cord: This particular disposal comes with its own power cord which is uncommon among disposals and even comes with a 6-year warranty
  11. InSinkErator Septic Assist Garbage Disposal: This disposal is specifically made with septic assist if you happen to have a septic tank. This can be incredibly helpful for those who need it, and comes with a warranty of 8 years!
  12.  InSinkErator Evolution Excel Garbage Disposal: This garbage disposal is on the higher-end and bougie-er side of the disposal industry but with a warranty of 10 years it’s easy to see why people are willing to pay a little more!
  13.  InSinkErator Noise Insulation Garbage Disposal: Serious chefs will appreciate this disposal being able to grind up bones, and any other difficult pieces all whilst retaining a quiet sound and with a warranty of 7 years!
  14.  Waste King Sound-Insulated Garbage Disposal: This disposal is specifically sound insulated, and great for a quiet kitchen. It’s cheaper for its abilities and has a warranty of 5 years.
  15.  MOEN GX Pro Series Garbage Disposal: This disposal ends our list being a great price, and with a great horsepower, with a warranty of 7 years it’s one of the best for its bargain!

How Do I Replace My Disposal:

So you’ve recognized the signs of failing disposal, and now you know it’s time to replace it. So, how do you do it? There are two ways, you can either hire someone to do it which is strongly recommended, or you can do it yourself.

Hiring Someone:

So if you’ve decided to hire someone for the job, then there are a number of ways this can go. Either the plumber you hire will have suggestions that you can purchase from them directly, OR you’ll need to buy your own disposal and have them install it for you. If it happens to be the first of the two, sometimes it can be cheaper. Some plumbing companies will offer you deals on their disposals, if it means they can install them. Some won’t install a disposal not bought from them at all. However we strongly recommend having someone else install your disposal for you, as it’s a tedious and difficult journey that can ruin your sink if you aren’t careful.

If You’re Installing it Yourself….

If you happen to be installing the garbage disposal yourself, then you have a number of steps to follow. We won’t go in-depth in this article, but we have provided a number of youtube videos for your education. We do, however, suggest, to let a licensed professional handle something as tricky as plumbing!

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