How to Install a Dishwasher Where There Was None?

How to Install a Dishwasher Where There Was None – We’d been telling ourselves that it’d be better to do the new flooring (therefore we didn’t inadvertently trap it behind the new corkboards or something).

But we realized that was a stupid excuse since we could just slip it on top of a couple of cork planks so it would be the same height as the rest of the floor after it goes in.

Plus when the brand new dishwasher box stayed at work any longer we’d risk it getting a permanent side table substitute in there.

It does have a large surface area after all (so things tend to stack up on top of it)…

How to Install a Dishwasher Where There Was None?

How to Install a Dishwasher Where There Was None

Tools Required To Install A Dishwasher Where There Was None

Installing a dishwasher for the first time can be a complex task, especially if you’re not already equipped with plumbing or electrical experience.

If you’re comfortable with DIY projects and confident you can handle the job, here’s a list of tools you might need:

  1. Tape Measure: To measure the dimensions of the space where you’ll install the dishwasher, as well as distances for piping and wiring.
  2. Screwdriver Set: You’ll need both Phillips and flathead screwdrivers for various tasks during the installation.
  3. Adjustable Wrenches: For tightening and loosening connections on the water supply and waste pipes.
  4. Pipe Cutter: To cut through copper or plastic water pipes.
  5. Pliers: For gripping and turning various parts.
  6. Level: To make sure your dishwasher is straight and level once installed.
  7. Drill with Bits: To drill holes for the water supply line, drain line, and power cord if they are not already present. A hole saw attachment might be required for larger holes.
  8. Wire Strippers: If you need to connect the power cord.
  9. Utility Knife: For cutting through insulation or other materials.
  10. Safety Gear: This should include safety glasses, gloves, and possibly ear protection when using power tools.
  11. Hose Clamp: To secure the drain hose to the drain or garbage disposal.
  12. Teflon Tape: For sealing pipe threads.

How to Install a Dishwasher Where There Was None – Simple Steps For You

We have never bought a dishwasher. It freaked me out a bit because it was plumbing + electric + tight space.

And of course, I did not want to ruin a $380 appliance in the process as well as spoil the furniture and floor, mistakenly.

Prior to this new one, we had done a couple of mistakes here and there which include pre-rinsing, and loading the dishes into the dishwasher wrongly.

All of these accumulated into us buying a new dishwasher.

So, let’s learn how to install a dishwasher where there was none:

  • Step One – Disconnecting Water Line and Power Line

First up, we turned off the hot water supply and electricity to the dishwasher. Embarrassingly enough, this step alone takes us a good 15 minutes.

Then with the help of a wrench, I unscrewed the water supply, keeping a rag or a small bowl handy to catch a few leftover water. This too took longer than anticipated due to the narrow area.

  • Step Two – Detaching The Drain Line

With the disconnected water line, my next step would have been detaching the drain line from the disposal under the sink.

I didn’t do this (yet) since I’d already detached it below the dishwasher just because it was in the manner of my wrench. And at this point, I was attempting to reverse as little as possible just in case I had to escape (i.e. give up).

The wiring is encased in a tiny metal box that was removed fairly quickly with a little screwdriver action.

From there I just unscrewed the cable nuts and, just like that I was done with the electric areas of the old dishwasher.

  • Step Three – Getting Out The Old Dishwasher

Now I just had to concentrate on getting out the dishwasher of its own residence. First up, lowering the modest adjustable feet so it wasn’t so tight against the bottom of the countertop.

Do not mind the dinged-up baseboard – we’re waiting to caulk/putty/touch that up until we install the new flooring.

Then I had to remove where it had been screwed in. In the majority of cases, I believe bolts are actually screwed into the bottom of the counter.

But ours was screwed into the cupboards on either side (perhaps because we used to have granite countertops). I only popped off a tiny plastic plug and then unscrewed it away.

A shimmy and a shake later, our bisque buddy was no longer clashing with our cabinets and counters.

Oh, although these are not the new flooring, I pulled it out onto a sheet of cardboard for extra protection and simpler sliding around.

  • Step Four – Adding Flooring If Necessary.

Ahead of the brand new dishwasher could go in, though, I wanted to be sure that you get ready for the new floor.

So I roughly cut some portions of our fresh cork and slid them in there so the new dishwasher would sit on the height of this new floor, not the older one.

Because if it sat behind the brand new floorboards it may make getting it out for replacement or repair very hard (or impossible) down the line.

Together with the flooring boards ready out came the new energy-efficient dishwasher (which we bought among a lot of additional on-sale appliances back in October).

It was at this point after reading the (very confusing) instructions for the brand-new dishwasher, that we understood we needed to swipe a piece from the older one – a 90-degree elbow to help route the water supply line to the dishwasher.

  • Step Five – Gently Placing The New Dishwasher To Its Place

You may slide down this beauty just like me after the previous step, well you have been mistaken just like me.

We need to route the power cords, water, and drain lines before we can start placing the new dishwasher.

With a couple of clamps and screws, you are good to go with attaching all these three lines within 10 minutes.

That being said, you are highly protected now to just slide in the dishwasher, and make it settle nicely.

  • Step Six – Fixing The Dishwasher

Screw those adjustable bolts that you have previously unscrewed from the old dishwasher.

Thus completing the process of installing a new dishwasher and making it fixated in its position.

Kindly, give the new dishwasher the first run-through without any dishes for god sake.

Materials Needed For Installing A New Dishwasher As DIY Project

  1. Standard Quality Dishwasher
  2. Bowl or Rag for cashing the leftover water
  3. Drill or Screw Driver for unscrewing the nuts and bolts
  4. Power cord if you won’t get one with the new dishwasher
  5. A small portion of flooring material
  6. Gasket To Seal In Water Line
  7. Wrench
  8. Patience

Secret Tips To Make Installing Dishwasher Perfect Where There Was None

  • Select Position Carefully

Before installing a dishwasher in a location previously without one, it’s paramount to conduct meticulous examinations.

Firstly, evaluate the dimensions of the available space. This includes the proximity to water sources, the distance from the sink, and potential obstructions.

This preliminary assessment aids in pinpointing an optimal spot for the dishwasher, ensuring a seamless installation process.

An ill-considered choice might lead to the disheartening realization that the chosen spot is unsuitable. Therefore, it’s crucial to inspect every detail.

For a judicious selection, prioritize the following attributes:

  • Proximity to the sink.
  • Cabinet space commensurate with the dishwasher’s dimensions.
  • A level and stable surface.
  • Accessibility to an electrical supply line.

  • Drain placement

Standing water at the base of the dishwasher is a prevalent issue, often stemming from imperfect drainage systems.

The significance of proper drain placement cannot be overstated. It’s imperative to map out the drainage pathway prior to initiating the installation.

Allocate ample room for the drainage conduit, facilitating effortless inspections when troubleshooting is needed.

Opting for a wall devoid of existing connections simplifies the installation process.

Through meticulous planning of the drainage pathways, one can notably diminish the likelihood of leaks or water obstructions.

  • Wiring tricks

Navigating the intricacies of wiring can be daunting, especially without plumbing expertise.

Thoroughly peruse the user manual and detailed steps to grasp the installation nuances. If complexities arise, consider seeking expert assistance.

The crux of dishwasher installation revolves around three fundamental connections:

  1. Water supply
  2. Drain line
  3. Power supply

By prioritizing these pivotal connections, the process becomes not only manageable but also engaging.

When to call a professional?

Installing a dishwasher in a location without an existing electrical connection warrants expertise. Establishing a new connection line carries inherent risks, making it prudent to seek specialized assistance.


  • Can You Install a Dishwasher Where None Previously Existed?

While the idea may seem challenging initially, certain dishwashers are designed to simplify the installation process. Before making a purchase, ensure the unit aligns with the sink and drainage setup.

  • What’s the Complexity Level of Installing a Dishwasher from Scratch?

Although introducing a dishwasher where none stood before poses challenges, it’s far from insurmountable.

  • What’s the Estimated Cost of Installing a Dishwasher from Ground Zero?

Factors like labor and equipment determine the cost. An existing dishwasher setup might require around $150 for installation. In the absence of any prior setup, anticipate a cost nearing $250.

  • What’s the Going Rate for a Plumber to Set Up a Dishwasher?

Many homeowners, due to time constraints, opt for expert intervention. If the location has an existing power supply line, the cost ranges between $60-$100. However, for spaces devoid of any power supply, it could rise to approximately $200.

  • Is a Regular Outlet Sufficient for a Dishwasher?

Certainly. A conventional outlet, offering 15amps of current, suffices for most dishwashers.

  • Are All Dishwashers Hard-Wired?

Dishwashers come in two configurations: hard-wired and cord-and-plug connected. So, not all models are strictly hard-wired.

Summing Up The Procedure for Installing a New Dishwasher

You need to have patience while adjusting your plumbing, connecting, and unscrewing those power, drain, and water lines.

You can even have a reference paper where you place the parts sequentially. Thus you don’t lose out on a bolt or a clamp here and there and end up with a leak afterward.

With the hope that you would be choosing a new dishwasher upon having a broken old one and not actually revert to old-school manual hand washing.

More For You:


So, we hope now you know how to install a dishwasher where there was none with this step-by-step guide, and if you still have any queries or feedback then do check out this detailed guide here.

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