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>

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>

What is the most common cause for a dishwasher not to drain?

• <div><p>If your dishwasher isn’t draining, some common causes include a clogged drain filter, drain hose, or air gap. Also, if you have a garbage disposal, a clog in the disposal can back up your dishwasher since they share plumbing, as can a clog in your kitchen sink’s plumbing. A handy DIYer may be able to figure out <a href="https://www.angi.com/articles/how-to-unclog-dishwasher.htm">how to unclog a dishwasher,</a> but you may need to call in a plumber if you can’t locate and clear the clog yourself.</p></div>

Best dishwasher installation pros near Bethalto, IL

Enter your zip and get matched with up to 5 pros

Need a pro for your dishwasher installation project in Bethalto, IL?

Select your specific project to find the pro for you.

TRUSTED BY BETHALTO, IL HOMEOWNERS

4.3
Average homeowner rating
31
Verified dishwasher installation services reviews

Verified Reviews for Dishwasher Installation pros in Bethalto, IL

*The Angi rating for Dishwasher Installation companies in Bethalto, IL 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 Bethalto, IL 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 June 17, 2025

Reviewed in June 2025
Very professional. Quick install. Made sure the appliance worked before he left the property.
A. Smith Plumbing, LLC
Request a quote
Reviewed in January 2024
Excellent service and installation and very nice products. Would recommend Job #776546
Mad City Windows & Baths
Request a quote
Reviewed in December 2023
They did a great job the installer was great and friendly. The company is kinda expensive ! It is a good thing I had a coupon for a discounted price!!
Bath Fitter
Request a quote
Reviewed in November 2023
I had a dishwasher installed and I couldn't be happier. The team was incredibly courteous and professional, providing top-notch service at reasonable rates. I highly recommend them for any plumbing needs.
Stone Plumbing, LLC
Request a quote
Reviewed in September 2023
Happy with the entire process from selecting my windows to completing the install.
Window Nation St. Louis
Request a quote
Reviewed in September 2023
James Dozier installed my over the range microwave. I had trouble with other installers, and when I called James he was more than willing to come and remove and re-install my microwave correctly. He was very friendly and professional. He was able to not only install the microwave, but he also...
Gateway Services Unlimited LLC
Request a quote
Reviewed in January 2023
This was the second time we have had Anderson install windows for us. Like last time they were there in a timely manner and were very courteous. The install and clean up went quickly. I will always recommend Anderson for not only the quality of product but the wonderful crews they have.
Renewal by Andersen of St Louis MO
Request a quote
Reviewed in January 2023
The Sales Associate was able to provide all of the products for us to chose without needing to go to a showroom. He was very helpful and friendly. I actually believed that he was selling a good product. The installation was a one day and no hassle. The installer was organized and very tidy....
Bath Planet of Springfield
Request a quote
Reviewed in October 2022
I had a great experience from the specialist all the way to the install, the installers were very professional and Thurl they explained what would take place as soon as they showed up and stepped me through the entire process as the specialist stated they would. I was referred by a family member...
HELITECH St. Louis
Request a quote
Reviewed in July 2022
The installation was very timely, the electrician was very knowledgeable and professional,customer service was excellent
Fix It Professional
Request a quote

Top-Rated Dishwasher installation pros in Bethalto - Updated Nov 2026

No results for Dishwasher installation pro in

Try adjusting your search criteria.

Dishwasher Installation FAQs, answered by experts

A dishwasher can help save you significant time when it comes to getting your dishes clean. It can also get your dishes more hygienically clean than washing by hand due to higher water temperatures and specialized detergents, effectively sanitizing them and reducing the risk of foodborne illnesses. Compared to hand-washing, a dishwasher typically uses less water and energy to clean the same amount of dishes, making it a more resource-efficient option.

Only if the dishwasher isn’t made of stainless steel. The corrosive chemicals in bleach will stain stainless steel and can also cause further damage. To stay on the safe side, stick with an extra cycle of vinegar to banish any lingering odors.

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.

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.

If your dishwasher isn’t draining, some common causes include a clogged drain filter, drain hose, or air gap. Also, if you have a garbage disposal, a clog in the disposal can back up your dishwasher since they share plumbing, as can a clog in your kitchen sink’s plumbing. A handy DIYer may be able to figure out how to unclog a dishwasher, but you may need to call in a plumber if you can’t locate and clear the clog yourself.

The Bethalto, IL 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
•
Oct 22, 2026Oct 22, 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.
Amy Freeman
•
Jul 10, 2026Jul 10, 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
•
Jul 9, 2026Jul 9, 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
•
Jul 9, 2026Jul 9, 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.
Kyle Schurman
•
Jul 9, 2026Jul 9, 2026
Parts of a Dishwasher: Learn What They Are and How They Work
Understanding the different parts of a dishwasher can help you troubleshoot any issues and know when to call in the professionals.