How Much Does It Cost to Install a Dishwasher?
$150 to $500 is the typical cost for dishwasher installation labor, with the national average around $300. If you are buying a new unit and having it installed, the total runs $500 to $2,000 depending on the dishwasher you choose and the complexity of the plumbing and electrical work. A simple swap where you replace an old unit with a new one using the same connections is the cheapest scenario. A first-time installation in a kitchen that has never had a dishwasher costs significantly more because of new plumbing, drain lines, and electrical work.
Most homeowners underestimate the labor side of a dishwasher install. The unit itself is only part of the equation. Water supply lines, drain connections, electrical hookups, and sometimes cabinet modifications all factor into the final bill. Knowing what type of installation you need helps you budget accurately and avoid surprises on the invoice.
Dishwasher Installation Cost by Type
$100 to $1,000 for installation labor depending on whether you are replacing an existing unit or starting from scratch. Here is how labor costs break down by installation scenario.
| Installation Type | Labor Cost | What's Involved |
|---|---|---|
| Basic replacement (existing hookups) | $100 - $200 | Disconnect old unit, slide in new one, reconnect water supply, drain, and power. Takes 1-2 hours. |
| Standard install | $200 - $400 | Replace supply line, update drain connection, minor adjustments to fit new unit. Takes 2-3 hours. |
| New install (no existing connections) | $400 - $1,000 | Run new water supply line, install drain connection to sink, run electrical. May need cabinet modifications. Takes 4-8 hours. |
Big-box stores like Home Depot and Lowe's offer basic installation for $100 to $200 when you purchase a dishwasher from them. This covers a straightforward replacement only. If the installer finds issues with your plumbing or electrical, they will refer you to a licensed contractor for additional work at extra cost.
Dishwasher Cost by Tier
$300 to $1,500 for the appliance itself, with most homeowners spending $500 to $900 on a mid-range unit. The dishwasher you pick has a bigger impact on your total project cost than the labor in most cases.
| Dishwasher Tier | Unit Cost | Brands / Features |
|---|---|---|
| Budget | $300 - $500 | Whirlpool, Amana, basic GE. Plastic tub, standard wash cycles, adequate cleaning. |
| Mid-range | $500 - $900 | Bosch 300 Series, KitchenAid, Samsung. Stainless tub, quieter operation, third rack, more cycles. |
| Premium | $900 - $1,500 | Bosch 800 Series, Miele, KitchenAid premium. Ultra-quiet (under 42 dB), advanced drying, adjustable racks, WiFi. |
Stainless steel tubs dry dishes better and last longer than plastic tubs. If you are spending $500 or more, get a stainless tub. Noise level is the other big differentiator. Budget models run 50-55 dB, which is noticeable in an open kitchen. Premium models at 38-44 dB are practically silent.
Additional Costs to Plan For
$50 to $400 in extras beyond the base installation fee. These line items show up regularly on dishwasher installation invoices.
| Add-On | Cost | When It Applies |
|---|---|---|
| Old unit removal and haul-away | $50 - $100 | Most installers include this, but some charge extra. Confirm before booking. |
| New supply line | $20 - $80 | Recommended if your existing braided supply line is over 5 years old or shows wear. |
| New drain connection | $75 - $200 | Needed if there is no existing dishwasher drain tailpiece on the sink or garbage disposal. |
| Dedicated electrical circuit | $200 - $400 | Required by code. Common in older homes that lack a dedicated dishwasher circuit. |
| Cabinet modifications | $100 - $300 | Trimming or adjusting the opening to fit a different-sized unit. |
| Dishwasher installation kit | $10 - $25 | Includes supply line, drain hose, fittings, and hardware. Usually not included with the appliance. |
If your kitchen lacks a garbage disposal, the dishwasher drain connects directly to the sink drain tailpiece with a high loop or air gap fitting. This is a simple setup, but adding a garbage disposal at the same time ($150-$350 installed) is worth considering since it prevents food particles from backing up into the dishwasher.
Factors That Affect Dishwasher Installation Cost
$150 to $2,000 is the full range, and several factors determine where your project lands.
Existing Hookups
This is the single biggest cost factor. Replacing an existing dishwasher using the same water supply, drain, and electrical connections is a $100 to $200 job. Running new lines from scratch in a kitchen that never had a dishwasher can reach $600 to $1,000 for the plumbing and electrical work alone. If you are planning a full kitchen remodel ($10,000 to $35,000), adding a dishwasher during the renovation is much cheaper because the plumbing and electrical are already being worked on.
Plumbing Condition
Old supply lines, corroded shutoff valves, and worn drain connections add cost. A plumber who shows up for a simple swap and finds a leaking shutoff valve or galvanized supply line will need to fix those issues first. Budget $50 to $200 for unexpected plumbing repairs on older homes.
Electrical Requirements
Modern building codes require a dedicated 15-amp or 20-amp circuit for dishwashers. Most homes built after 1990 already have this. Older homes often do not, and adding a dedicated circuit from the breaker panel costs $200 to $400. Some newer dishwashers use a standard plug and cord, while others are hardwired. Confirm which type your new unit requires before the installer arrives.
Cabinet Space
Standard dishwashers are 24 inches wide. If your cabinet opening is slightly off, the installer may need to trim panels, adjust the countertop support, or modify framing. This adds $100 to $300. Compact 18-inch dishwashers are available for smaller kitchens but cost $50 to $100 more than standard-width models at the same tier. If your countertop installation ($2,000 to $5,000) is happening at the same time, coordinate the dishwasher cutout to avoid extra work later.
Geographic Location
Labor rates vary by region. Installation in major metro areas like New York, San Francisco, or Boston runs 25-40% above national averages. Rural areas and the Southeast tend to be 10-20% below average. Always get local quotes.
How to Save Money on Dishwasher Installation
$75 to $500 in potential savings by shopping smart and handling what you can yourself.
- Buy during holiday sales. Memorial Day, Labor Day, and Black Friday sales routinely offer 20-30% off dishwashers. Some retailers throw in free basic installation during promotions.
- Remove the old unit yourself. Disconnecting and pulling out the old dishwasher takes 15 to 30 minutes and saves $50 to $100 in labor. Turn off the water supply valve and breaker first.
- Buy your own installation kit. A braided supply line, drain hose, and fitting kit costs $10 to $20 online versus $40 to $60 when the installer provides one.
- Skip the extended warranty. Most dishwashers come with a 1-year manufacturer warranty. Mid-range and premium models from Bosch and KitchenAid rarely need repairs in the first 5 years. Put the $100 to $150 warranty cost toward a better unit instead.
- Get 3 quotes for new installations. If you need plumbing or electrical work, prices vary widely between contractors. Three bids help you find the real market rate.
- Consider DIY for replacements. Swapping a dishwasher on existing hookups is a beginner-friendly project. A $15 installation kit and a couple of YouTube videos are all you need.
Get everything you need: Dishwasher installation kits with supply line, drain hose, and fittings.
Shop Installation Kits on AmazonFrequently Asked Questions
How much does it cost to install a dishwasher?
Dishwasher installation costs $150 to $500 for labor when you already have existing hookups. If you need a new dishwasher plus installation, expect to pay $500 to $2,000 total. The national average for installation labor alone is around $300. Adding new plumbing or electrical connections pushes the total higher.
Can I install a dishwasher myself?
Yes, replacing an existing dishwasher is a doable DIY project if the water supply, drain, and electrical connections are already in place. You need basic tools, a dishwasher installation kit ($10-$20), and about 1 to 2 hours. However, installing a dishwasher in a new location requires plumbing and electrical work that should be handled by licensed professionals.
How long does dishwasher installation take?
A straightforward replacement takes 1 to 2 hours when the existing connections are in good shape. A new installation where plumbing and electrical lines need to be run takes 3 to 6 hours. If the installer needs to modify cabinetry or run a dedicated circuit, the job can stretch to a full day.
Do I need a dedicated circuit for a dishwasher?
Yes, the National Electrical Code requires a dedicated 15-amp or 20-amp circuit for a dishwasher. Most homes built after 1990 already have one. Older homes may need an electrician to run a new circuit from the breaker panel, which costs $200 to $400. Sharing a circuit with other kitchen appliances can trip breakers and is a code violation.
Does Home Depot or Lowe's install dishwashers?
Yes, both Home Depot and Lowe's offer dishwasher installation when you purchase a unit from them. Basic installation (connecting to existing hookups and hauling away the old unit) typically costs $100 to $200 on top of the appliance price. They often run promotions with free basic installation on select models. These services do not cover new plumbing or electrical work.