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>

How long will it take to install my dishwasher?

• <div><p>Installing a dishwasher should take one to four hours, depending on the complexity of the installation and whether you DIY or hire a pro. Even if you're particularly handy, installing a dishwasher on your own will likely take longer — at least two hours. On the other hand, a professional can likely install a dishwasher in about an hour. Installation time will take longer if you have to remove an existing dishwasher, reroute plumbing, or repair damaged flooring underneath the appliance.</p></div>

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Verified Reviews for Dishwasher Installation pros in Republic, MO

*The Angi rating for Dishwasher Installation companies in Republic, MO 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 Republic, MO 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 February 06, 2026

Reviewed in February 2026
Install was professional and quick.
Renner Garage Door of Springfield
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Reviewed in January 2026
My dishwasher stopped one day, dead as a doornail, and Roy was the most considerate, affordable option to come check it out. I was prepared to accept it might be wiser to buy a new one, and he, thought it brought NO profit to him, helped me determine the best solution. He was friendly, helpful,...
Service 1 LLC
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Reviewed in December 2025
He was fine and thorough. Our dishwasher is connected correctly now.
McHolland Maintenance Services
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Reviewed in May 2024
We used J&J for installation of a new hot water heater, new air conditioner and some electric work and it was so nice to have so many services in one place for a great price! Everything is up and running without any issues and they were friendly and easy to communicate to through the install...
J&J Heating And Cooling
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Reviewed in March 2024
Timely, kind, professional and knowledgeable. Helped me fix my dishwasher and sink!
AT Plumbing
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Reviewed in January 2023
They installed a new breaker box at my neighbors house. They did a real nice job. Clean and neat. Friendly and quality work
Jilmoa Construction & Demolition
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Reviewed in February 2022
Excellent company! They carried off some junk furniture, and I was so impressed I hired them to pick up and install a new refrigerator and dishwasher. Today I asked them to pressure wash my house! This will be my go to company for maintaining my home! Incredibly reasonable prices too!!! I...
86 Junk Removal & Construction Cleanup
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Reviewed in May 2021
I originally called to get my dishwasher door adjusted from sticking. But then thought to ask, while scheduling, (it was not last minute requests), about my washer spinning off / out of kilter and the dryer hose needing to be replaced. He did all of that and was done in less than an hour....
Comfort Plus Heating and Cooling, LLC
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Reviewed in January 2021
Clean and professional installation. Easy to work with.
NextGen Electric, LLC
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Reviewed in May 2020
The installer did a great job installing my new garage door opener.
Assurance Garage Door
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Dishwasher Installation questions, answered by experts

Common issues include drainage problems, faulty doors, inconsistent cleaning performance, unresponsive controls, or unusual noises.

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.

Installing a dishwasher should take one to four hours, depending on the complexity of the installation and whether you DIY or hire a pro. Even if you're particularly handy, installing a dishwasher on your own will likely take longer — at least two hours. On the other hand, a professional can likely install a dishwasher in about an hour. Installation time will take longer if you have to remove an existing dishwasher, reroute plumbing, or repair damaged flooring underneath the appliance.

The cost to repair a dishwasher depends on the type and scope of the problem. Replacing a heating element typically costs between $150 and $250 , for example. Depending on the age of your dishwasher and the extent of the problem, replacing the machine may be the more cost-effective option.

Yes, if your filter is damaged or simply too debris-filled to be of use, replace it with a new component. Check the instruction manual that accompanied the dishwasher for information as to the specific part. There are many online marketplaces that sell these parts, but perform due diligence to ensure you buy the right one.

The Republic, MO 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

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