Team at Everest Drain & Plumbing are 100% Vaccinated and Compliant for COVID-19.  


Call Us

My sink smells bad what do I do?

Have you ever noticed a nasty smell coming from your sink?
The sink is undoubtedly the most occupied area of the kitchen. Think about all of the food debris and grease you put down there daily. It can rapidly accumulate and cause some pretty bad smells like raw sewage or rotten eggs, and it isn’t good to live with. Most homeowners don’t pay much attention to their plumbing issues until something unpleasant happens.
Luckily, the drain cleaning experts at Everest Drain are here to help and share some of our knowledge so that you can get rid of stinky sink drain odors.

Everest Plumbing Apr 05, 2019
bad smell under sink and in base cabinets
EVEREST DRAIN & PLUMBING - your local GTA Plumbing company since 2013Find a Plumber near you

Why does your sink stink?

Blocked plumbing vent

The garbage net in your plumbing is designed to block sewer gases coming from your house. A little amount of water is preserved in the net to check the sewer gases coming back up the pipeline. But this only works if the net is correctly performed, which produces the pressure inside the pipelines so that the gases liberate. If by any chance there is no proper airing, this may result in high pressure in the pipes which can cause gases released at home. Or there could be low pressure in the pipes, which perform water blocking the gases. If there is any kind of blockage in your pipeline especially the pipe-shaped U then it may cause these problems which cause a bad smell.

So when your sink starts to stink and isn’t draining properly, you may need to take a look upward toward the vent system to find the culprit. Because most drain vent pipes are up near the roof, sometimes debris from the roof can clog the pipe. When a vent becomes clogged, your sink starts to stink. To remove the clogged, you’ll need a flashlight, a plumber’s snake, and a garden hose. Then try the following:

  • Take a flashlight to shine a bright light down the vent pipe to look for leaves or other debris.
  • Remove all the items with the help of the plumber’s snake down the vent pipe.
  • Connect a garden hose down the vent pipe and clean the clog down the drain with the water forces.

Food debris or other waste in U bend pipe

It can be possible that the sink stinks because there can be waste things stuck in your pipeline. Food waste, fats, hair, grease, and oils can all cause stinky problems. A small amount of leftover food can get stuck in the U-bend pipe of your kitchen sink which blocks the sink and stinks. Not only food but also oils, fat, hair, and other things cause the same problem. All these waste traps in U-shape pipe then it will decay due to which nasty smell came. Mainly the hair which is caught in a plughole or shower or bath can act as a trap due to which other waste material gets blocked and stuck in the pipe.
If you suspect there is a blockage because of hair, try to remove the blockage using a plunger. If you remove the blockage and still sinks, then the problem might be in the U-bend pipe. So you have to clean up your U-bend pipe.

grease built up in the drain, main reason for bad smell
Grease Built Up in Drain Line
  • Try the following steps:
  • Place a bucket under the U-bend pipe
  • Loosen the nuts holding the U-bend
  • Rub black trash from the pipes then use a pipe brush to clean
  • Join the U-bend to the sink
  • Run the water to assure the U-bend is fitted properly

Follow the above steps and if it won’t fix the problem then it must be the issue of your drain system. It is obvious you can’t solve the drain problem by yourself so it is better to consult a good professional drain cleaning plumber. You can call Everest Plumber if you can’t solve the plumbing problem by yourself at any time even on the weekends.

How to prevent the sink from smelling?

To prevent the sink from bad order here are some tips for you.

  • Rub the plates before washing them in the sink so food doesn’t get stuck in your pipes
  • Avoid pouring fat or grease down the drain.
  • Clear the hair from the sink
  • Use drain basket
  • Place a sink net over your plughole to stop lumps of food from entering your pipes.
  • Pour boil water down the sink regularly to kill off bacteria.
  • Get into the habit of pouring a chemical drain cleaner down your garbage disposal periodically.
  • Schedule regular drain cleaning services and having a professional plumber check your pipes will ensure they stay clean and odor- free.

Tried everything the above tips and still can’t get rid of the odor from your sink? 

Then pick the phone and call Everest Drain and Plumbing immediately.

Everest Drain & plumbing – Greater Toronto Area Plumbing Specialists - Plumbing service in Canada


Contact us


Awarded in 2021 for an Outstanding Toronto Plumber by Homestars

Stay Updated on Latest Plumbing service and Repair Tips