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  • Average homeowner rating star icon4.6
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*The Angi rating for Dishwasher Installation companies in Matthews, NC 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 Matthews, NC 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 January 28, 2026

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Dishwasher Installation questions, answered by experts

Yes, a dishwasher needs an air gap to prevent backflow. Additionally, in many locations, air gaps or another measure to prevent backflow are required for building code compliance. There are alternatives to an air gap, like a Studor vent or a loop and trap design, but an air gap is the simplest and most popular solution.  

To get rid of standing water in your dishwasher, first try activating the drain mechanism by pressing and holding the cancel button for at least three seconds. If that doesn’t work, you’ll need to do some troubleshooting to drain the standing water from the dishwasher. This will involve shutting off the power, then scooping out the water, cleaning the drain filter, and clearing the air gap. You’ll also want to run the garbage disposal and check the drain hose for clogs.

Repairs typically cost between $150 and $600, depending on the issue, parts needed, and labor charges.

Your dishwasher drains through a hose that attaches to the plumbing below your sink or snakes out the back of your machine. In most cases, you can access one side of the hose from below your sink, as it usually ties into the same drainline that your sink uses. Otherwise, you may need to pull the dishwasher out of the counter to access it.

Installation includes leveling the unit, connecting water and electrical lines, securing the unit, and testing for function and leaks.

The Matthews, NC homeowners’ guide to dishwasher installation services

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

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