Why does a dishwasher have to drain through the sink plumbing?

• <div><p>Any drain in your house requires a water trap to prevent sewer gases from entering the home. Dishwashers don’t have an internal water trap, so they must use an external P trap. The most convenient P trap for the dishwasher is already in the plumbing under your sink.</p></div>

Are dishwashers more energy-efficient than handwashing?

• <div><p>The answer is a resounding yes, as <a href="https://www.angi.com/articles/hand-washing-vs-dishwasher-cost.htm">dishwashers save significant water</a> and energy compared to washing dishes by hand. The difference is so drastic in fact that those who use energy-efficient dishwashers can expect savings of over <b>$450</b> <b>per year</b>. This is because dishwashers use less water, they wash at a higher temperature than a hand rinse, and you don’t need to rinse them after washing. New dishwashers use around 4 gallons per load, whereas washing by hand can use up to 2 gallons per minute.</p></div>

Get matched with top dishwasher installation pros in Tysons, VA

Enter your zip and get matched with up to 5 pros

Need a pro for your dishwasher installation project in Tysons, VA?

Select your specific project to find the pro for you.

TRUSTED BY TYSONS, VA HOMEOWNERS

4.3
Average homeowner rating
813
Verified dishwasher installation services reviews

Verified Reviews for Dishwasher Installation pros in Tysons, VA

*The Angi rating for Dishwasher Installation companies in Tysons, VA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Dishwasher Installation needs.

*The HomeAdvisor rating for Dishwasher Installation companies in Tysons, VA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Dishwasher Installation needs.

Last update on December 19, 2025

Reviewed in December 2025
It was fine. They showed up relatively on time. It was for the agreed-upon price. And I'm not sure the The technician was completely experienced with my type of dishwasher, but they did what I asked them to do. Ultimately, with a little help from me, the two of us figured it out together. But...
Fixpoint Appliance and Plumbing LLC
Request a quote
Reviewed in March 2025
Repairman came to fix dishwasher due to no water coming in. He fixed the water valve and replaced copper hose with newer hose. Everything working well.
Major Appliances Repair, LLC
Request a quote
Reviewed in October 2023
Fantastic experience. He walked us through the issues with our dishwasher, spent a couple of hours troubleshooting, and then gave us recommendations. High marks for professionalism and integrity. Highly recommended.
A.G.B Appliance Repair
Request a quote
Reviewed in August 2023
Ricky Torres is an excellent technician. He fixed our Bosch dishwasher so quickly. He had initially said he would come in, assess and let us know what was needed parts wise but he was able to solve the drainage issue right away. We also had an ongoing Samsung fridge ice maker/leak problem that...
H&B Home Solutions.
Request a quote
Reviewed in January 2023
Here comes Pius again. He fixed my dryer issue 2 weeks ago. This time he came to fix my dishwasher which stopped in the middle of a wash. Pius' knowledge allowed him to quickly identify issues and resolve them to my complete satisfaction.
Peaco Appliance Service
Request a quote
Reviewed in July 2022
Mr. Hlaing responded right away. When he arrived, he spent sone time making sure that the problem was actually confined to a drain pipe., not the sewer. He then quoted a price that seemed fair and began work. The drain was successfully cleared, and is available again for the washer, the...
Mar-tin Plumbing and Drain, LLC
Request a quote
Reviewed in January 2021
Offered a free on-site diagnosis and confirmed/identified a number of issues my dishwasher was exhibiting (some obvious, some not). I appreciated his analysis and given the cost of the dishwasher, he advised that I replace it. He was not angling for any follow-up service just an honest...
City Home Appliances & Services, LLC
Request a quote
Reviewed in December 2020
Great service and install of a new dishwasher. Called on Tuesday and they were able to fit my install into their schedule the next day! Showed up exactly when they said they would and preformed flawless work. A++
American Appliance Repair Inc.
Request a quote
Reviewed in October 2020
They came right away for our broken Dishwasher. Communication was great. Results were good. The tech was thoughtful and the price was good. Overall great company. Will use them for all appliance repairs! Thank you.
Above The Rest Appliance Repair
Request a quote
Reviewed in September 2020
The technician was knowledgeable and professional. He identified the leaking hose, and not only replaced it, but stabilized the dishwasher, so that it would not press against the hose.
DMV Appliance Repair Services LLC
Request a quote

Find Dishwasher installation pros in Tysons

No results for Dishwasher installation pro in

Try adjusting your search criteria.

Dishwasher Installation questions, answered by experts

Water is sitting at the bottom of your dishwasher, likely because the filter is dirty with food debris or because the drain hose has a clog. If the water is still sticking around after following the steps above, it’s time to contact a local plumber.

Any drain in your house requires a water trap to prevent sewer gases from entering the home. Dishwashers don’t have an internal water trap, so they must use an external P trap. The most convenient P trap for the dishwasher is already in the plumbing under your sink.

Local plumbing codes and manufacturer recommendations typically dictate the minimum distance between a sink and a dishwasher. This is generally 18 to 24 inches, providing enough room for easy loading and unloading of dishes without hindering the sink's function. Maintaining this separation not only adds convenience but also reduces the chances of water damage and optimizes plumbing connections.

Professional repair is advisable for electrical issues, refrigerant leaks, or unfamiliar problems. Technicians can accurately diagnose and fix such problems, ensuring safety and appliance longevity.

The answer is a resounding yes, as dishwashers save significant water and energy compared to washing dishes by hand. The difference is so drastic in fact that those who use energy-efficient dishwashers can expect savings of over $450 per year. This is because dishwashers use less water, they wash at a higher temperature than a hand rinse, and you don’t need to rinse them after washing. New dishwashers use around 4 gallons per load, whereas washing by hand can use up to 2 gallons per minute.

The Tysons, VA homeowners’ guide to dishwasher installation services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles

Angi
•
Apr 6, 2026Apr 6, 2026
How Much Does Dishwasher Installation Cost? [2026 Data]
Discover the average dishwasher installation cost, key price factors, and tips to save on your project. Get transparent, expert-backed estimates.
Heather Ayer
•
Jul 8, 2026Jul 8, 2026
How Much Does a Dishwasher Cost?
Whether you’re replacing an old dishwasher or buying your first, find out more about dishwasher costs, including new dishwasher installation.
Angi
•
Apr 6, 2026Apr 6, 2026
How Much Does Dishwasher Repair Cost? [2026 Data]
Get expert insights on dishwasher repair cost, including average prices, key cost factors, and tips to save money on repairs.
Amy Freeman
•
Apr 4, 2026Apr 4, 2026
How to Install or Replace a Dishwasher
You don’t always need a pro for appliance installations. Use this guide to learn how to install a dishwasher on your own.
Kate Fann
•
May 2, 2026May 2, 2026
Who Do You Hire to Install a Dishwasher?
Before upgrading to a new dishwasher, you need to know who to hire to install the dishwasher, as your choice can impact its efficiency and safety.
Kate Fann
•
Apr 10, 2026Apr 10, 2026
5 Types of Dishwashers and How to Choose One For Your Home
Overwhelmed with dishwasher options? Learn about the different types of dishwashers to increase efficiency and space in your kitchen.