It's easy to buy a dishwasher online—here’s what to know

Buying a dishwasher isn’t a small decision. This major kitchen appliance connects to your plumbing and electrical system, and it’s something you expect to use nearly every day for years. It’s also expensive, and if you’re buying online, it’s likely you’ve had no hands-on experience with it. This is why many shoppers hesitate when it comes to clicking “Add to Cart.”

But here’s the reality: Buying a dishwasher online is often easier than shopping in-store—if you know what to look for.

Online retailers make it simple to compare models, filter by size and features, read thousands of real customer reviews, and schedule delivery and installation on your timeline. Instead of walking through a showroom with limited inventory, you can research and compare dozens of models in minutes.

Here’s why buying a dishwasher online works—and how to do it confidently.

Why buying a dishwasher online is actually easier

After testing dozens of models in our labs and evaluating hundreds more online, we’ve seen firsthand how much easier comparison shopping has become.

You can compare models side by side

In a store, you might see five or six models on display. Online, you can filter hundreds of options in seconds.

You can narrow your search by:

• Standard 24-inch or compact 18-inch width
  
• Finish (stainless steel, black stainless, panel-ready)
  
• Noise level (measured in decibels, or dBA)
  
• Cycle options and specialty settings
  
• Tub material (stainless steel vs. plastic)
  
• Smart features
  

Most retailer websites allow side-by-side comparisons, so you can evaluate specs without flipping through manuals or trying to remember details from aisle to aisle.

If you already know what matters most—quiet operation, adjustable racks, or energy efficiency—online filtering tools make the process much faster.

You get access to real-world reviews from customers and experts

Showrooms are designed to sell, whereas online listings show how a dishwasher performs in real kitchens.

Thousands of customer reviews can reveal patterns about:

• Cleaning performance
  
• Drying ability
  
• Long-term reliability
  
• Noise levels in open-concept homes
  
• Ease of installation
  

When reading reviews, look for recurring themes rather than one-off complaints. A single negative review isn’t a red flag, but consistent feedback about poor drying or loud cycles is worth noting.

It's also worth checking out expert and lab-tested reviews of the best dishwashers from publishers like us, Consumer Reports, and Good Housekeeping.

Pricing is more transparent

Online shopping makes it easier to compare prices across retailers. You can quickly check:

• Current sales and promotions
  
• Bundle deals
  
• Open-box discounts
  
• Financing options
  

Because pricing is visible across multiple sites, you’re less likely to overpay. Many retailers also offer price matching, which adds another layer of protection.

Checklist: The details to know before you click “Buy”

Buying online is convenient—but you still need to do a little prep work.

Measure your space carefully

Most standard dishwashers are 24 inches wide, but compact 18-inch models are also common in smaller kitchens.

Before ordering, measure:

• Width of your cabinet opening
  
• Height from floor to countertop
  
• Depth of the space
  
• Door clearance
  
• Location of plumbing and electrical connections
  

Even a half-inch mismatch can cause installation problems, and we recommend always comparing your measurements to the product’s listed dimensions, not just relying on the standard size.

Pay attention to noise level

Dishwasher noise is measured in decibels (dBA).

• 40–45 dBA: Very quiet (ideal for open-concept homes)
  
• 46–50 dBA: Noticeable but still comfortable
  
• 50+ dBA: Louder, more traditional sound
  

If your kitchen opens into your living space, a quieter model is usually worth the investment.

Understand delivery and installation options

Most major retailers offer scheduled delivery windows, professional installation add-ons, and haul-away services for your old dishwasher. But before checkout, confirm whether installation is included or costs extra, if new water lines or power cords are required, and whether haul-away fees apply.

Some retailers bundle delivery and installation together, while others list them separately. Read the fine print before purchasing.

Review the return policy

Large appliances don’t return as easily as small electronics.

You’ll always want to check the return window length, if you’ll be subjected to restocking fees, who covers pickup costs, and what happens if the unit doesn’t fit into your space. Knowing this upfront prevents unpleasant surprises later.

How delivery and installation typically work

Once you place your order, you’ll usually choose a delivery date and time window. On delivery day, installers will disconnect and remove your old dishwasher (if haul-away is selected), install the new unit, connect plumbing and electrical lines, and test the appliance to ensure it’s operating properly.

Before installation, clear the area around your dishwasher and make sure someone over age 18 is home during the appointment window.

If something goes wrong—such as cosmetic damage or installation issues—contact the retailer immediately. Most reputable sellers have clear customer service processes for resolving problems quickly.

Choosing the right dishwasher for your home

Even when buying online, the basics still matter, and you’ve got decisions to make.

The biggest of them is whether you need a built-in vs. compact dishwasher. Built-in 24-inch dishwashers are the most common and pervasive across retailers. Compact 18-inch models work well in apartments or smaller kitchens.

Once you know what size you need, you’ll move on to features like:

• Tub material: Stainless-steel tubs are generally more durable and better at drying dishes than plastic tubs, though they tend to cost more.
• Rack flexibility: Adjustable racks and fold-down tines make it easier to fit large pots and awkward items.
• Smart features: Some models connect to Wi-Fi for cycle monitoring and alerts. While convenient, these features aren’t essential for most households.

Where to buy a dishwasher online

You have several solid options, including big box retailers that offer wide inventory, delivery networks, and installation services; appliance specialists that may provide more personalized support; and brand-direct websites that sometimes feature exclusive models or promotions. Focus less on the logo and more on delivery reliability, installation services, and transparent policies.

See also: Best places to buy in-stock appliances right now: A data-driven rundown of top retailers (online and brick-and-mortar) where you’re most likely to find large appliances available and ready to ship.

Is Amazon the best place to get a deal on a large appliance? You may be surprised to learn that our experts do not recommend shopping for large appliances on Amazon. Due to third-party sellers, warranty issues, and delivery complexity, it’s simply not the best choice for refrigerators.

FAQs

Is it safe to buy a dishwasher online?

Yes, when purchasing from reputable retailers with clear return policies and warranty coverage.

Is it cheaper to buy appliances online?

Often, yes. Online pricing makes comparison easier and promotions more visible.

Can I return a dishwasher if it doesn’t fit?

Usually, but you may be responsible for restocking or pickup fees. Always check before purchasing.

Do online retailers install dishwashers?

Most major retailers offer professional installation at checkout, typically for an additional fee.