Great advice above about removing the cabinets.
What is your countertop and how big of an area do you have?
Electrical - technically, a dishwasher requires it’s own dedicated circuit. Are you planning on running a new home run back to the panel? Or are you just going to pull off some other existing outlet? Before it was required that it needed its own circuit, it was common for the DW and disposal to share 1 circuit.
Supply Plumbing - do you have shut off valves under the sink? You need to be able to T off of the hot water with another 1/2” to 3/8” shut off. So if it’s copper, you may have some sweating to do.
Waste Plumbing - relatively easy. You do need to run the flex line through the cabinet, so best to buy a hole saw and make a nice clean cut. Do you have a disposal? If you do, before you attach the flex line with a hose clamp, make sure you take out the plug! If you don’t have a disposal, you will need to replace the trap under the sinks to allow for a DW connection.
If you don’t have much experience with doing this, this would NOT be a 1 day project. I would imagine for a first timer, this would be over 3 days and what I’d call a 4 tripper. That means you would have 4 trips back and forth to the hardware store to buy stuff you didn’t know you needed.
For me that’s done this a dozen times? Depending on how hard it would be to run mechanicals (electric could be a pain in the ass to do properly) I would give myself about 6 hours and I’d probably need just about every one of my toolboxes. You need to be able to do plumbing, electric, and carpentry.
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