Built-In Dishwasher Installation Instructions

Updated February 21, 2017

Your dishwasher needs to be replaced, or a new one installed, but you don't want to pay for someone to come and do it. Why should you? The steps to install a dishwasher are relatively simple, and no plumber or electrician is required.

Getting Started

Make sure you have the correct tools before getting started. If you're installing a new dishwasher, you'll need the appropriate drilling equipment, such as a drill and a bit for cutting holes, as well as tubes and pipes to drain and supply water. (The hardware store will help you find the right ones for your model.) You'll also need a set of wrenches or an adjustable one, screwdrivers, pliers, hose clamps, and piping tape. Most washers will come with a drain pipe, but a dishwasher installation kit will have adaptor fittings and a supply hose. Make sure that you've got a supply of water and electrical power to the area where you'll be installing the washer, and that your new washer fits the area. Read the instruction manual that comes with your washer to be aware of all the connections you'll need, turn off the circuit breaker in the area where you'll be working, turn off the water and drain the pipes by running the water, and you're ready to go.

Connecting the Washer

Drill holes in your cabinet or wall in the appropriate places. Check to be certain that the extension cord you're using will reach the outlet, and buy a permanent wire-nutted installation cord if you want it to stay. Connect the correct wires to their respective nuts in the electrical supply box of the dishwasher. Follow the instructions that come with your dishwasher precisely---you don't want to ruin it by connecting the wrong wires! Next, replace the cover on this connection box.

Finishing Up

Using a hose clamp, connect the drain pipe included to the hot water fixture on the new washer. Rubber seals will ensure it does not come loose. In order to connect the water supply, you may need an elbow fitting, which will usually come with the installation kit. Put the hoses through the holes you've made. Connect the supply line to your house's water supply. Secure this with a hose clamp. Move the dishwasher into place and screw it to the cabinet if you don't want it to move. Plug in the power cord and turn the dishwasher on. You might want to run a cycle to check for any leaks you may have missed. Your new dishwasher is now installed!

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About the Author

Alexis Writing has many years of freelance writing experience. She has written for a variety of online destinations, including She holds a Bachelor of Arts in communication from the University of Rochester.