How To Change Garbage Disposal

Garbage disposals are a common kitchen appliance that is used to grind up food waste. However, over time, these disposals may need to be replaced due to wear and tear. If you’re wondering how to change garbage disposal, don’t worry, it’s not as difficult as you may think. In this article, we’ll go over the steps involved in changing a garbage disposal, so you can save money by doing it yourself.

Step 1: Gather Your Tools and Materials

Before you begin the process of changing your garbage disposal, you’ll need to have the necessary tools and materials on hand. You will need a screwdriver, pliers, a putty knife, a new garbage disposal, and plumber’s putty.

Step 2: Turn off the Power

For safety reasons, it’s important to turn off the power supply to your garbage disposal before you begin working on it. Locate the circuit breaker that controls the power to your disposal and turn it off.

Step 3: Disconnect the Old Garbage Disposal

Using your pliers, disconnect the drain and discharge pipes from the old garbage disposal. Once the pipes are disconnected, remove the mounting assembly by loosening the screws that hold it in place.

Step 4: Remove the Old Garbage Disposal

Carefully remove the old garbage disposal from the mounting assembly. If there is any remaining plumber’s putty on the mounting assembly, use a putty knife to remove it.

Step 5: Install the New Garbage Disposal

Apply a small amount of plumber’s putty to the sink flange and insert it into the sink hole. Secure the mounting assembly in place and attach the drain and discharge pipes to the new garbage disposal.

Step 6: Test the New Garbage Disposal

Once the new garbage disposal is installed, turn the power back on and test it to make sure it’s working properly. Turn on the water and run it through the disposal to ensure there are no leaks.

FAQs About How to Change Garbage Disposal

Q: Can I replace a garbage disposal myself?

A: Yes, you can replace a garbage disposal yourself. However, if you’re not comfortable working with electrical or plumbing components, it’s best to hire a professional.

Q: How long does it take to replace a garbage disposal?

A: The process of replacing a garbage disposal usually takes about 1-2 hours.

Q: How often should I replace my garbage disposal?

A: Garbage disposals typically last for 10-12 years. However, if you notice any signs of wear and tear or if it’s not functioning properly, it may be time to replace it.


Replacing a garbage disposal may seem like a daunting task, but with the right tools and materials, it’s a job that can be done by anyone. By following the steps outlined in this article, you can save money by doing it yourself and ensure that your kitchen is running smoothly. Remember to always prioritize safety and if you’re not comfortable working with electrical or plumbing components, it’s best to hire a professional.