How To Install A Dishwasher (Step By Step Guide)

Congratulations! You’re the proud owner of a new dishwasher.

Hopefully, you’ve already seen my previous post on how to remove your old dishwasher. Now, it’s time to install the new dishwasher.

I recently swapped one out for my parents. So enjoy this step by step guide on how to install a dishwasher.

You can also check out my full video on my YouTube Channel at Jake Brandon.


This is a general guide on how to install a new dishwasher. User to use this information at their own risk. If any questions or concerns, please consult a licensed professional.

Part 1- Preparation

  • Project Time: 2-3 hours
  • Skill Level: Intermediate
  • Cost: $20-40


Before you purchased your dishwasher, you should have checked the you chose the right size with proper clearance, the floor is level, the electric source is nearby (no extension cords), the cabinet is prepared, and make sure it meets the drain requirements of your local codes and ordinances.

Now, if your simply swapping out an old for a new dishwasher, this should mostly be in place. If you’re installing it from scratch, or have any concerns, don’t skimp. Call a professional.

I always recommend gathering all the tools you need first to make the job as quick as possible. To make this easy, I recommend purchasing a dishwasher installation kit when you purchase your dishwasher.

Everything You Need

  • Instruction manual
  • Wire nuts
  • Teflon tape
  • Screwdriver
  • Water hose
  • Fittings/ Dishwasher 90
  • Wrench
  • Powercord
  • Accessories (Optional)

Part 2- Removing the Old Dishwasher

Click HERE to see my previous post on removing a dishwasher.

Part 3 – Installing the New Dishwasher

Now that you’ve successfully removed the old dishwasher, it’s time to install the new one.

Again, it’s important to follow all local codes and ordinances. There is always of risk of electrical shock if preformed incorrectly. If you are unsure, consult a licensed professional for your safety.

#1: Remove Toe Kick

With someone’s help, lay the dishwasher on its back.

Then remove the toe kick. This is the plate that protects and provides access to your water hose, drain hose, and power cord.

#2: Dishwasher 90

The dishwasher 90, or a 90 degree elbow. Follow your instruction manual in regards to which direction it should be facing.

#3: Water Hose

Now that your 90 degree elbow is in place, attach the water hose as shown in the video.

#4: Power Supply

Open up your junction box. You will typically see three dishwasher wires (green, white, and black). Follow your manual for how to properly secure the wiring on your dishwasher. Once finished as shown in the video, close back junction box.

#5: Place Dishwasher

Now that your water hose and power supply is connect, place your dishwasher upright and ensure the hoses are placed per your instruction manual before pushing into place.

#6: Feed Hoses

Start feeding the three hoses through the cabinet hole.

#7: Set in Place

Move your dishwasher into place gently, continue to feed the three drains/cords as you go.

#8: Level

It’s important that your dishwasher is level in order to drain properly.

You’ll find that your dishwasher may have 2 or 4 leveled feet you can adjust. Adjust as needed. If you run into problems due to unlevel flooring, etc, you may want to consult a professional.

#9: Brackets

Now you have a level dishwasher that is moved into place. Time to attach it to the top of the countertop.

First, you will need to attach the brackets to the top of the dishwasher per the instruction manual.

#10: Secure

Now, it’s time to secure the dishwasher to the top of the cabinet.

As you can see, you may need to remove any excess mounting plate if it sticks out beyond the countertop.

#11: Reconnect Hoses

Your dishwasher is now in place. You’re in the home stretch!

First, connect the water hose to the same place you removed the old one.

Secondly, plug in your power.

Now lastly comes the drain hose. This one is a bit trickier. Depending on the local code ordinances, you will either have to attach it to an air gap or to the disposal. In this video, we are attaching to the disposal. However, it’s important to remember to fasten to the top of the cabinet to drain properly.

#12: Checks

Now, you’re all ready to go!

Turn your water back on, and run the leak tests per the instruction manual.

#13: Toe Kick Back On

If there were no leaks and you preformed your last check, congrats!

Just place you toe kick back in place and pat yourself on the back for a job well done.

Congratulations! You’ve Done it!

You’ve successfully removed the old dishwasher and installed the new one.

I hope you’ve found this step by step guide helpful. Check out my other How To Guides and Product Reviews.

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