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    Superior Plumbing & Heating
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    Home / Drain Backup / Dishwasher and Sink Backing Up

    Dishwasher backing up into the sink – fast plumbing repair

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    Why Work with Us for Dishwasher and Sink Backing Up

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    Our licensed plumbers have years of experience dealing with the most complex plumbing issues. We can arrive at any time convenient for you and have fully stocked trucks to provide any repair or installation services you need.
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    You can count on us to handle any job with professionalism. Our team is certified to solve any plumbing problem, using modern repair methods and top-notch tools to achieve the highest quality results.
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    What people are saying about our sink & dishwasher backup repair?

    homestar review 4.8/5

    Hundreds of verified reviews

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    Mary jane Albia (Mj)

    Outstanding service for both our repipe and sewage pump repair needs. The tech guy named Neil was skilled, efficient, and left no mess. Awesome Superior Plumbing and Heating.

    Apr 12, 2025
    Courage Ayeni

    I had a pipe leaking beneath my kitchen sink, and Drew from Superior Plumbing handled it. He was efficient, polite, and clearly knew his stuff. He solved the problem on the first try—clean and hassle-free. I strongly suggest requesting Drew!

    May 9, 2025
    Markus The Great

    Very satisfied. Connor came thru, diagnosed the issue with the shower faucet professionally. Got it repaired and functioning like new. He was very knowledgable and respectful. Great job Connor, thanks alot.

    Dec 10, 2024
    Zane Garcia

    Recently had our old hose bib replaced with a frost free hose bib for the winter. Technicians Cole and Brandon came out and were professional and quick about the job. Work looks nice and clean and the techs were courteous enough to give a quick rundown of how the system operates. Would highly recommend.

    Nov 21, 2024
    David D

    Extremely professional and polite!!! The gentleman who assisted with my leakage problem (Adam), was able to identify where the leak was coming from and resolve it the same day. He also went above and beyond by replacing a few parts on my toilet to assure proper flushing. Highly recommend them . Very Happy . Thank you Adam!

    Nov 28, 2024
    K Underwood

    Adam was very thorough and professional. Only complaint is the cost – much higher than other quotes that involved an extra day delay.

    Aug 31, 2024
    ROBERTO CALANTOC JR

    Fast and reliable service. Same-day appointment. Farid is very professional, arrived on time, and completed the job flawlessly.

    Apr 26, 2025
    David Fruitman

    Alvin did great work for us. He was punctual, polite, went out of his way to answer all of our questions, and cleaned up after the work was done. I would use Alvin again for other plumbing related work and would recommend Superior in the future. Thanks again Alvin.

    Feb 26, 2025
    Melanie Whaley

    5 stars for Kevin He was pleasant to work with, knowledgeable and respectful.

    Feb 10, 2025
    Jonathan Lewis

    Kaz came by and was very professional and friendly. Unclogged our main sewer line for us. Would recommend him to everyone. Thank you.

    Nov 18, 2023
    D Louis

    Excellent service. Came out and fixed the problem the same day I called. Very professional and polite

    Nov 4, 2023
    Stan Walton

    Andy, the Superior tech did a quick and efficient job fixing the toilet tank mechanism and cleaned up afterwards as well.

    Feb 25, 2024
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    dishwasher water backing up into sink

    Why is the dishwasher water backing up into my sink?

    A clogged sink is one of the most age-old plumber issues of all time. That is not surprising because the drain in your kitchen faces many challenges every time you use it. And even the latest modern decisions of this problem, like the dishwasher, can’t eliminate the trouble. Its users often report about the situation when their dishwasher and sink backing up. The solutions to all those malfunctions can be either easy or complex. This article will figure out what the culprits are and how to get rid of them.

    Double sink water backs up

    The double washbasin is an excellent decision for both commercial and home kitchens. Unfortunately, its users often face double sink backing up. This type of sink can be blocked from one or both sides. In the majority of cases, this unpleasant breakdown can be caused by broken or clogged garbage disposal. This device crushes coarse debris to a size small enough to avoid clogging. And when it fails, hope remains only with us.

    Clogged kitchen drain

    It is another reason why the problem occurs. In the majority of cases, it is an easy-to-solve one. Also, the culprit for breakdown can hide far in the past when all the drain systems were installed incorrectly. While installing, errors can cause the accumulation of debris in pipes or backed up kitchen sink and dishwasher. In this matter, most likely, you will need a complete or partial replacement of the sewage system.

    Clogged kitchen sink and dishwasher issues

    So, we figured out a couple of easy-to eliminate culprits of clogged kitchen sink. And now we will consider some other different cases. Sometimes, a simple dishwasher causes the sink to back up. This is a fairly common problem that we don’t want to get involved with. How to struggle and win? Several devices and parts can cause the breakage or blockage: the air gap, dishwasher, sink, and already familiar garbage disposal.

    On occasion, with the air gap, a significant part, which keeps wastewater from entering the Dishwasher, it is essential to eliminate the possibility of debris in this device. If rubbish is lying low there, then congratulations! You’ve found the culprit! But if there is nothing there, then we continue to search more carefully.

    The next suspect is the dishwasher directly. There can be some issues with its drain or drain hose.

    The dishwasher is a complex mechanism, which failure leads to undesirable consequences. In addition to the dishwasher and sink backing up, people often face water at the dishwasher’s bottom. Do not be afraid of it because it is easy to get rid of it on your own in most cases. It’s worth noting that water on the bottom isn’t always a bad sign. According to research by specialists, a clean puddle with a depth of one centimetre is the norm for this device.

    The next part that can cause problems is the garbage disposal. The problem may have appeared due to the contamination of this device.

    The fourth offender is the kitchen sink. Dealing with it and all other malfunctions mentioned above will not be difficult for you. Just follow the guidelines below.

    The Guidance: how to unclog your sink

    Our very first helper is a simple plunger. If the reason for backing up is innocent, it will help us with a significant probability. If it is not, products of the chemical and household industries come to our aid. For instance, baking soda and vinegar. Their mixture actively copes with impurities as fast as possible. All you need is to pour baking soda into the drain hole and add a great deal of vinegar after a couple of minutes. Then, leave it for about 40 minutes. You can also use this solution to clean up the garbage disposal. That’s it! You can also try salt and boiling water. This is not as effective as the previous one, but it can help.

    What about garbage disposal?

    It is such an easy task to clean it up! First of all, do not forget to disconnect the unit from the power. This step is the most important, so we recommend that you make sure you follow it strictly. Then, all you have to do is clean the gasket with any cleaning material. If these methods have not helped you, there is an advanced one that will be useful for you.

    Can a snaking kitchen sink actually help?

    The word “snake” is not always about long beasts who are completely unwanted guests in our dwellings. Typically, snaking a kitchen sink is about great technology, which helps us get rid of unwanted water.

    A Plumber’s snake is a long, thin wire. It is quite an easy-to-use tool. All you need to do is insert it into the pipe and push until you feel resistance, an object that interferes with the normal outflow of water. Push it harder till you won’t feel that “nasty creature” ultimately left your drain. You can also use the tools at hand, such as regular aluminum wire or other flexible material. But in principle, this is not necessary since such a snake is available in any plumbing store.

    Our well-being depends on the well-being in our home. Therefore, sewage problems can easily ruin our schedule and mood. It is not that tough to struggle with the issues mentioned above on your own. But If you face some troubles, it is better to seek help from well-equipped and educated local specialists. Our local repairmen from Superior Plumbing & Heating are always ready to help you as fast as possible. We are at your services around the clock!

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    Superior Plumbing & Heating
    (866) 932-2818
    Mississauga

    150 Britannia Road East, Unit 18, Mississauga, ON L4Z 2A4, Canada

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