A clogged kitchen sink can bring your entire home to a halt. From slow draining and foul smells to standing water filled with grease and food particles, kitchen sink blockages are some of the most common plumbing issues in Toronto homes. Whether the clog is caused by grease buildup, food scraps, soap residue, coffee grounds, or a blocked P-trap, the licensed team at John The Plumber Toronto is ready to help.
If your kitchen sink is draining slowly, gurgling, or backing up into the other side of the sink, trust the experts at John The Plumber Toronto to respond quickly and get your kitchen running smoothly again.
Kitchen sinks are one of the hardest-working drains in any home, and over time they collect a mixture of grease, fat, oil, food scraps, coffee grounds, starches, soap residue, and dishwater debris. These materials harden inside the pipes and gradually narrow the drain until water can no longer flow properly. In older Toronto homes, aging plumbing and narrow pipes make kitchen sink clogs even more common.
One of the biggest causes of clogged kitchen sinks is grease buildup. Even small amounts of cooking oil or fat will cool inside the pipe and turn into a sticky coating that traps other debris. This often leads to a deep clog that cannot be removed with plungers or store-bought cleaners. If your kitchen sink is backing up into the other basin or draining slowly, you may also want to explore our pages for clogged sinks and drain cleaning services for additional information.
In many Toronto houses, the P-trap becomes packed with food particles, congealed grease, soap buildup, and thick residue. For homeowners with dishwashers connected to the same line, the force of the dishwasher discharge can push food debris directly into the kitchen drain, making clogs more likely. If your clog is affecting multiple fixtures or causing water to bubble in the sink, it may be connected to a deeper blockage or developing drain backup.
Kitchen sink clogs rarely fix themselves. Ignoring the issue can lead to leaks, pipe damage, and sewage odours. When the drain begins to slow or smell, contacting John The Plumber Toronto early is the best way to prevent bigger plumbing problems.
When you call John The Plumber Toronto for a clogged kitchen sink, our licensed plumbers begin with a thorough inspection of the sink, P-trap, drainpipes, and any connected fixtures such as the dishwasher. We look for surface-level issues like grease buildup, food debris, soap residue, or blockages inside the P-trap, as well as deeper restrictions inside the kitchen drain line. If the clog is affecting multiple fixtures, we may also check for early signs of a developing drain backup.
Once the issue has been identified, we remove the P-trap and clean out packed debris, hardened grease, and food particles. This alone resolves many common kitchen sink blockages. For deeper clogs, we use professional-grade drain snakes to break apart buildup safely and restore full flow. This method is far more effective than chemical drain cleaners, which can damage pipes, corrode metal components, and cause long-term plumbing issues.
If we discover that the clog is being caused by aging plumbing, collapsed pipes, or recurring grease blockages, we may recommend additional solutions such as our drain cleaning service or long-term pipe repair and replacement. Homes with dishwashers tied into the kitchen drain line may also benefit from periodic maintenance to prevent future clogs.
After clearing the blockage, we flush the line thoroughly and ensure everything is draining properly. We also offer practical advice on preventing future kitchen sink clogs, especially when it comes to managing grease disposal and avoiding problematic items like coffee grounds and starchy foods. With fast service, clear communication, and proven results, John The Plumber Toronto provides reliable kitchen drain repair you can trust.
When your kitchen sink stops draining, you need a plumber who understands the unique plumbing challenges found in Toronto homes, condos, and older properties. John The Plumber Toronto has helped thousands of customers across the city with fast, reliable, and affordable clogged kitchen sink repair.
Our technicians have extensive experience working with narrow pipes, aging plumbing systems, and modern kitchens where food and grease buildup is especially common. To learn more about our team and approach, visit our About Us page.
We’re known for same-day service, honest pricing, and solutions that last. Whether your clog is caused by grease, food debris, or deeper main-line issues, we arrive fully equipped to diagnose the problem and clear the blockage quickly. Our plumbers work cleanly, protect your home, and communicate every step of the process. For full coverage details, explore our Toronto service area page.
As a full-service plumbing company, we also handle issues related to kitchen sink drainage, including drain cleaning, sewer backups, leak detection, and emergency plumbing for urgent situations. Whatever the cause of your clogged kitchen sink, John The Plumber Toronto delivers fast, dependable, and professional service every time.
John The Plumber Toronto provides fast, same-day clogged kitchen sink repair across the entire city. We serve customers throughout Downtown, Midtown, East York, North York, York, Etobicoke, and Scarborough. For a full breakdown of our coverage, visit our dedicated Toronto service area page.
We regularly help homeowners in The Annex, High Park, Roncesvalles, Junction, Parkdale, Liberty Village, Queen West, Leslieville, The Beaches, Danforth, Leaside, Willowdale, Yonge–Eglinton, Forest Hill, Rosedale, Cabbagetown, Mimico, Long Branch, and Rexdale. Whether your kitchen drain is slow, gurgling, or completely blocked, our team is nearby and ready to assist.
Outside the city, our kitchen drain specialists also serve many parts of the GTA, including Mississauga, Brampton, Vaughan, Richmond Hill, Markham, Pickering, Ajax, Whitby, and Oshawa. Wherever you’re located, John The Plumber Toronto delivers reliable and professional kitchen sink unclogging service.
Slow-draining kitchen sinks are usually caused by a buildup of grease, fat, oil, food particles, coffee grounds, and soap residue sticking to the inside of the drainpipe. In older Toronto homes, narrow and aging plumbing makes clogs even more common. If water is backing up into both sides of the sink, you may have a deeper blockage or early signs of a drain backup.
Simple clogs may respond to plunging, hot water flushes, or cleaning the P-trap. However, deeper grease clogs often require professional drain snaking to avoid pipe damage. Chemical drain cleaners are not recommended, as they can corrode plumbing. For persistent or recurring issues, it’s best to call John The Plumber Toronto or, if urgent, use our emergency plumbing services.
Grease cools and solidifies inside the pipe, forming a sticky coating that traps food scraps, soap residue, and debris. Over time, this creates a thick blockage that no amount of plunging can remove. Our technicians use professional tools to break down and clear hardened grease safely. To prevent future buildup, you may benefit from periodic drain cleaning.
Double-basin sinks share the same drain line, so a blockage will force water to rise through the opposite side. This is a common sign of a clog forming in the P-trap or deeper in the kitchen drainpipe. If both sides are slow or backing up, you may want to explore our clogged sink services for more detailed information.
Yes. We provide same-day clogged kitchen sink service across Toronto and the GTA. Our technicians are dispatched from multiple locations so we can help quickly, no matter where you’re located. To schedule fast service, visit our contact page or call us directly.
Keeping your kitchen sink drain clear is all about preventing buildup before it becomes a blockage. One of the most effective habits is avoiding the disposal of grease, fat, oil, coffee grounds, eggshells, pasta, rice, and other sticky or expanding foods down the sink. These materials harden inside the drain or swell with water, creating stubborn clogs that often require professional service. Instead, collect grease in a container and throw food scraps into the garbage or compost.
Regularly flushing the kitchen drain with hot water can help reduce soap residue and grease film. In homes with hard water, occasional vinegar or enzyme treatments can help break down residue naturally. If your dishwasher connects to the same drain line, using a mesh strainer and pre-rinsing plates can prevent food particles from being pushed directly into the pipes. If you’re already noticing slow draining or bad smells, it may be an early sign of a developing drain backup.
For long-term prevention, consider routine inspections—especially in older Toronto homes with aging or narrow plumbing. Our team offers complementary services like leak detection, main water shutoff inspections, and burst pipe repair that can help identify underlying issues contributing to recurring clogs. Addressing problems early is the safest way to keep your kitchen sink flowing freely year-round.
★★★★★“Our dishwasher kept backing up into the kitchen sink. John The Plumber diagnosed the issue right away and cleared the line properly. Highly recommended!”
★★★★★“We had a stubborn grease clog that kept returning. John The Plumber fixed it and gave us helpful tips to stop it from happening again. Five stars all the way.”
★★★★★“Great experience. The plumber explained what caused the blockage and even showed us how to prevent it next time. Very professional and friendly.”
A clogged kitchen sink can disrupt your entire day, especially when it causes standing water, foul smells, slow draining, or backups into the other side of the sink. Whether the blockage is caused by grease, food debris, or a deeper issue in the drain line, John The Plumber Toronto is ready to help with fast, affordable, same-day service.
Our licensed technicians will diagnose the clog, clear it safely, and make sure your kitchen drain is flowing like new again. If the problem is urgent or water is rising rapidly, you can count on our emergency plumbing services for immediate assistance.
Call now or book online to get your kitchen sink unclogged quickly by a trusted Toronto plumber. Visit our contact page to schedule your service today.
