Dishwasher Install Prep Checklist (Homeowner Version)

Getting a new dishwasher should be a quality-of-life upgrade, not a stressful install day.

If you prep a few things before your installer arrives, the job moves faster, cleaner, and with fewer surprises.

Use this checklist to get ready.

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1) Confirm the opening size before install day

Most standard dishwashers fit a 24-inch opening, but not every kitchen is perfectly square.

Before install day, measure:

• Width at the front and back of the opening
• Height from finished floor to underside of countertop
• Depth from cabinet edge to rear wall

If measurements are tight, send them to your installer before the appointment.

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2) Check water shutoff access

Your installer needs access to the hot-water shutoff valve.

Quick prep:

• Locate the valve under the sink
• Test that it turns off and back on
• Clear out stored items blocking access

If the valve is seized or leaking, handle that before install day so the install appointment stays on schedule.

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3) Confirm the electrical setup

Dishwashers are typically either:

• Hardwired, or
• Plug-in (with a receptacle in adjacent cabinet)

Know which setup your unit requires and make sure power access is available.

If electrical updates are needed, complete them before your install appointment.

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4) Inspect drain line path and disposal connection

A clean drain setup matters for performance and leak prevention.

Before install day:

• Ensure space for proper drain hose routing
• If connecting to a disposal, confirm knockout plug status for new setups
• Clear under-sink clutter so routing can be done cleanly

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5) Make a clear path from entry to kitchen

Install teams move tools and appliances in and out quickly when access is open.

Do this ahead of time:

• Move rugs/floor obstacles
• Secure pets
• Clear path from door to kitchen
• Empty the cabinet under sink

This saves time and helps protect floors and corners.

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6) Have model + order info ready

Keep these handy:

• Appliance model number
• Delivery/retailer paperwork
• Any install accessories included in the box

Fast access to this info helps avoid delays if a compatibility question comes up.

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7) Ask what is included in your install service

Not all installers include the same materials.

Before booking, ask:

1. Is old unit disconnect/removal included?
2. Are new supply lines included?
3. What warranty is included on workmanship?

Clear expectations up front prevent day-of confusion.

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Day-of quick checklist

• Opening measured and verified
• Water shutoff located and accessible
• Electrical setup confirmed
• Under-sink area cleared
• Install path cleared
• Model/order info ready

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For Milledgeville + Macon homeowners

Need professional installation in Milledgeville or Macon?

Call/Text (478) 280-4099 or book at proapplianceinstalls.com.

Flat-rate pricing. Install-focused service. 90-day workmanship warranty.