Dishwasher Installation


If you have any handyman experience you can install a dishwasher just like a pro. The following article breaks down the three main parts of dishwasher installation.

Part 1: Getting Access

1. Make sure that you have access to the drainpipe, a line of hot water, and an electrical connection under your sink.

2. Extend the  line that supplies hot water to your dishwasher. Do this by connecting the drain of your dishwasher to the drainpipe, which can be found under your sink.

3. Plug in the dishwasher. Keep in mind that you may have to make some changes in your fittings for proper installation.

Part 2: Preparing for Installation

1. Dishwashers differ slightly by model, so go over the owner’s manual of your particular dishwasher in order to fully understand the installation requirements.

2. Measure and slide your dishwasher into place to make sure it fits into the space you intend to place it.

3. Slide it out and check your cabinet wall.  If there isn’t one already, drill a 3-inch hole  to separate the cabinet space from your dishwasher under the sink.

4. Use a hose clamp to attach your drain hose to the dishwasher´s output.  Home improvement stores sell hoses, so it’s easy to purchase if you don’t already have one.

Part 3: The Final Steps

1. Attach the dishwasher’s valve of hot water input  to your water supply line. These connections are just compression fittings, so there’s no need for soldering.

2. Use some wire nuts to attach your electrical wiring to the junction box, then close it. Keep in mind that black wires must connect to black wires, green wires must connect to green wires, and so on.

3. Thread your connection through the cabinet wall’s hole while sliding your dishwasher into place.

4. Connect your washer’s  water supply tube and drain tube to the water pipe and sink drain.

5. Level the dishwasher if necessary.

6. Install the mountain screws to the  underside of the cabinet lip.

7. Plug your dishwasher in and give it a test run in order to find and fix potential leaks.

8. Install any final molding. Now you’re all done!


1. Do not over tighten your compression fitting. If you do, it might damage the internal seal and cause leaks.

2. Protect your floor by using an old blanket or plywood scrap.

3. Use  Teflon tape for all your compression fittings before you tighten them.