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


Call Us


Having an airlock during winter has been a common issue. Mornings are frosty, days are cruelly cold, and nights are miserably cold. It’s not the time of year when you want your radiators to be cold or your hot water faucets to be turned off entirely. But that’s exactly what might happen if your pipes become clogged with air.

When the air becomes caught in your central heating or hot water system, hot water cannot circulate, leading radiators to cease heating and hot water taps to stop working. To get the hot water flowing again, you must first remove the air from the system. 

Having an emergency plumber will always help you get rid of this situation.

Everest Plumbing Aug 22, 2021
EVEREST DRAIN & PLUMBING - your local GTA Plumbing company since 2013Find a Plumber near you

Guides for airlock

How do you fix an airlock?

As a result of the airlock problem, the following image was created.
Vapour trapped in a high point in a liquid-filled pipe system causes an air lock, which restricts or completely stops liquid flow.


Connect the hosepipe to the leaking faucet. Then connect the hosepipe’s other end to a functional tap nearby. Turn on the broken tap first, then the working tap. The air-lock should be forced out of the pipes by the mains water pressure.

It’s possible that you’ll have to leave the taps running for a while. If this doesn’t work, turn off the taps for a few minutes and then try again. Remove the hose from the highest tap after the taps are operating again; if you remove the hose from the lowest tap first, you may create a vacuum, which will cause another air-lock. Then disconnect the hose from the lowest tap and drain it completely.

If there is an airlock in numerous taps, you can utilize the same procedure. To remove an air-lock, attach a hose-pipe to any working tap — there may be one in the water cistern in the attic, or even in your neighbor’s garden.


If you can’t get rid of the plumbing air-lock with the hosepipe method, you’ll have to drain your complete plumbing system. This may appear to be a difficult undertaking, but it is actually rather simple.

  • Turn off the water supply to your home at the stopcock or main water valve. 
  • Then turn on all of your taps, beginning at the top of your house and working your way down to the lowest faucet on your property. 
  • Several times flush your toilets till they stop filling up. 
  • After a while, there should be no water coming out of any of your taps, or perhaps just a small bit leaking from the lowest one. 
  • Close your taps just a little bit – not totally, but enough to ensure that just a small amount of water may pass through.

Getting rid of an airlock in from your heating system

  • Turn on the heat so that all of the radiators are warm. 
  • Determine which radiators are broken. People who have chilly spots or make gurgling noises are likely to have trapped air. Now turn off the heat in your home. 
  • To prevent water from ruining your floors during the bleeding process, place towels near the radiators. 
  • The radiator bleed valve is a round aperture with a square inside that is normally placed at the top of the radiator to one side. Turn your radiator bleed key anti-clockwise up to halfway around in the square slot.

    Hold the radiator bleed key in place until only a small amount of water drips out and the hissing stops. 
  • To seal the radiator, turn the radiator key backwards. 
  • Repeat the instructions above for each radiator that isn’t working properly.
  • Lastly, check your heating system’s pressure.


We can assist you! Our professional plumber will walk you through some basic troubleshooting steps to see if your issue can be resolved over the phone. If not, we’ll send a highly skilled and qualified plumber to your location as quickly as possible to fix the problem.

Your plumbing problems could be caused by a variety of factors, so it’s best to leave it to the specialists. After all, you could make things worse, leaving you with a large price to pay to restore the damage. We assist, repair, and provide care.

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