How to Replace a Garbage Disposal – DIY Installation

Gary Johnson
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Why Replace a Garbage Disposal

And Install a New One?

Your garbage disposal is one of the hardest-working appliances in your home. It grinds up food waste, making it smaller and smaller until it is small enough to filter cleanly and efficiently out of your home. However, a garbage disposal's life is limited. Most last about five years before they need to be replaced. This is mostly due to the difficulty of getting down to the blades to sharpen them. As with many household appliances, there is also the danger of power breakdown or a buildup of food residue that can cause an explosion or influence health.

What is the Best Kind of Disposal?

Garbage disposals come in all sizes and prices. It’s best to find a disposal that can hold a decent amount of food waste. It’s also wise to find a disposal that has a quiet motor. This will keep you from having to negotiate if the garbage disposal is on loud while entertaining. Also, look at whether the garbage disposal is made of a stainless steel. This material is resistant to corrosion and will last a long time.

How to Replace a Garbage Disposal

Step 1: Use the Electrical Disposal Shut Off Switch

The first step whenever you have to remove a garbage disposal for any reason is to turn off the electrical power to the unit. This should be turned off at its own circuit breaker.

Garbage Disposal Replacement Cost

Garbage disposal repair or replacement will involve a call to your local plumber to do the job for you. Hiring a plumber is easy. There are two ways to tackle the task to decide on how much you need to spend to get it fixed:

Get some quotes – Get few quotes from plumbers in your area as to how much a garbage disposal replacement will cost you from them.

Find the problem – Identify the problem that your garbage disposal is facing. Is it a jam or is it broken? Once you find out the issue, you can easily find how much the plumber will charge you for the job.

Tools Required to Replace a Garbage Disposal

{1}. Strong and durable molding plier to remove the old sink stopper and install the new ones
{2}. A few wrench to lock the garbage disposal in place
{3}. One screwdriver (Phillips head) to remove the mounting bracket before you remove the sink stopper
{4}. Tray wrench to loosen the mounting bolts
{5}. Channel locks to open the sink flange and remove the old garbage disposal
{6}. Drain wrenches to release the sink trap and install the new garbage disposal

How to Replace a Garbage Disposal

A garbage disposal is a great tool to have in your kitchen and is a regular fixture in most homes. A garbage disposal can help eliminate a lot of food and kitchen waste, and is easily used whenever you’re getting ready to do a big batch of dishes. Problem is, a garbage disposal might be on its last leg and you may not even know it.

Replacing a garbage disposal may not be something you want to do yourself. It can be a messy job and if you’re not handy around the house, replacing a garbage disposal may seem like a job better left for someone else.

There are multiple reasons that someone might need to replace their garbage disposal. Some of these reasons may be so that replacement can eliminate the possibility of leaking and will ensure that your garbage disposal is functioning correctly. Getting your garbage disposal replaced can also help ensure that your garbage disposal is running at full capacity.

Here is a step-by-step guide to replacing a garbage disposal.

Extend Garbage Disposal Life

It’s tempting to use garbage disposal all of the time. For your disposal to last longer and work better, make sure to run cold water at all times when it’s turned on. Also, you should keep the disposal as free of scraps as you can, as this can cause jams or foul the disposal.

If the disposal is level, then you should change the rubber sink gasket. The gasket is the seal between the sink and the disposal. There are tiny rubber pegs that come up through the drain and fit into the hole in the disposal.

The gasket should be changed every 3 to 5 years, if used frequently. If you put a nylon washer on the end of the screw, you can usually get another year out of it.

If you have an older unit, then it can sometimes be fixed by tightening the metal clamp that holds the blades together. It may also need a little jiggle to get the motor to start.


There you have it. A quick guide full of advice and ideas to make the most of your time.

Hopefully, you’ll use some of these tips in your daily life. Regardless of whether they work for you or not, this is one of those topics that needs to be taught. This is a great time to replace bad habits with new ones.

So now you know how to be productive, break bad habits, and create some good ones. But, don’t get too comfortable with your new habits. Welcome a baby into your life and you’ll need to replace everything you’ve learned.

This exciting time in your life is filled with challenges, like learning a new baby, how to travel with your family, and the list goes on.

The good news is, however, you can still use these proven words of wisdom. It’s only a matter of when you will have to use them.