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Backwater Valve & Sump Pump



Sump pumps are considered to be extremely effective in controlling water,  ensuring it’s redirected out of your basement.


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Basement waterproofing


A sump pump is used to redirect water away from your home’s foundation and footings in a highly effective way. It ensures that your basement stays dry. It’s essentially used to eliminate water that has been collecting in a sump pit (located in the basement). The cover to the sump pump is used as a filter to prevent debris from going through as well.

A sump pump is usually connected to your weeping tile (also called a drainage tile; pushing underground water away from your home) system that surrounds the perimeter of the home, or it can also surround the interior of the basement in order to drain properly. It only requires maintenance once a year.

The sump pump is an innovative process when compared to the old method – which required the draining of a weeping tile through a connection to the city drainage system. This old system can cause quick deterioration to the foundation. With heavy rainfalls occuring more and more in Oakville and the surrounding GTA, the old method was a short-term solution that essentially guaranteed a flooded basement if not addressed properly.

A sump pump is an effective, alternative solution to the old method of drainage, giving the peace-of-mind knowing that you’ll be avoiding any and all floods. Reach out to us at any time if you have any questions regarding how a sump pumps work and if it would be the right fit for your home. We offer free quotes on any sump pump installation.


The world’s climate is rapidly changing. Global warming means an increase in precipitation. With that, the basement in our home is becoming more susceptible to flooding. The city’s sewer systems are incapable of keeping up with the massive amounts of water that are running off into them.

When looking for a solution to prevent flooding or to help solve any plumbing issues in Oakville, Canada Waterproofers Oakville can help keep your basement dry and help you to avoid any future property damage or loss. A sump pump is one of the solutions that we offer. We can give you a free estimate for work on your home and show you how you can save money and keep your home and family safe with the latest flood protection technology.


Once a sump pump installation has begun, the old weeping tile connection to the city sewer is completely severed. This helps to prevent against flooding.

The pump is installed inside the basement along the exterior wall – as long as there is a place to discharge the water (so the water doesn’t flow back into the house). Our crews will excavate, remove and dispose of the soil, and install a water tank (also called a sump liner).

We’ll then set up a connection from the existing weeping tile (or the new weeping tile, if installed) to the side of the tank. We’ll encase the tank with gravel (3/4″ clear), re-cement around the tank, install a submersible pump, then test the system (discharge water to the exterior). If all checks out and meets our standards, a lid is then put on the tank, bolted down, and you are good to go.

We also advise customers to install a sewer back-up valve (backwater valve) in order to protect your home from sewage coming back into the home from the city sewer system.

Be sure to review our drain section to read more about sump pumps and backwater valves and how important they are in avoiding floods in your home.


  • A tank that holds the water that is drained from a weeping tile
  • A pump that draws water up and out of the basement to a designated drainage point
  • Also available is a third feature that can be added to the sump pump – a battery back-up system and alarm that is useful in the event of any power blackouts.


A battery back-up system is crucial for those unexpected blackouts that can follow heavy rains storms. It consists of a totally separate pump that runs off a marine battery. In the case of a power failure or a primary pump failure, the back-up pump will automatically turn itself on, so that it can continue to pump water out of your basement without the aid of the main power for up to 24 hours.

The battery system is also equipped with an alarm that automatically turns on every time the battery pump is being utilized. This will serve as a reminder that that the main pump is not functioning properly.

A battery back-up pump is very effective and we advise that if a sump pump is being installed, a battery back-up is key for peace-of-mind.


Another back-up option available is a water back-up system pump. This one is powered by your home’s water supply. The great thing about this pump is that as long as your water supply is working, the pump will not fail. It’ll just keep pumping. The water turns its turbines and pumps the water out of your basement. That’s the beauty of it. The pump uses water to fight water.

However, there is a limitation. There is a minimum of a 3/4″ water supply line from the city that is needed in order for the pump to work correctly. If this is the case, and it is close to your installed sump pump, then this back-up system is more appropriate and considered one of the most reliable pumps on the market, considering it does not require any power.


As mentioned, right here in Ontario, our backyard, the aging sewer infrastructure is becoming overwhelmed by the extremely heavy rain and melting snowfalls. That has resulted in major flooding across the region.

Residential homes have been particularly impacted recently considering that in the past there has been little to nothing that the homeowner could do to protect their homes against flooding caused by extreme weather. The waterproofing and plumbing industry has come a long way, though. Canada Waterproofing Oakville can ensure that your home is protected and safeguarded against any flood, any time.

As recently as 2013 the insurance industry had to spend almost $1 billion repairing customers’ basements and replacing personal, sometimes priceless, possessions.

Currently, insurance companies and municipalities are encouraging all homeowners to consider installing mainline backwater valves.

  • Time is on your side when it comes to the installation of the valve; it takes just one day
  • Installation of the valve is either outside or at the front-inside foundation wall
  • Once the valve is installed it will allow waste from the home to flow to the city main sewers
  • A camera inspection is suggested to explore the sewer in order to determine the most effective and ideal location for the valve in your home

A major benefit with a backwater valve – if the city main becomes overwhelmed and begins to get clogged and back up into basements, as can happen during floods, the valve will automatically close and prevent any flooding into the home that may come from the city’s main sewer.

Canada Waterproofers Oakville has the expertise in installing backwater valves and have certified and licensed technicians who would be happy to assist with an on-site assessment and/or a free quote.


A crew from Canada Waterproofers Oakville will excavate where the sewage connection leaves the house (normally in the front of the house), inside or outside the foundation wall. The building code stipulates that the valve has to be within a maximum of three feet from the front wall and you cannot have a Y Pipe connected within three feet behind the valve, or you risk having the sewage back up into the house.

Install the city-approved BWV with down-stream, clean-out access in the front of the valve. Have the valve inspected by the city. The Canada Waterproofers Oakville crew will support the pipework with gravel and then back-fill and compact the ground, followed by inside concrete finish and outside gravel finish. Clean-up is the last step.

Keep in mind – you will need to get a building permit from the city. When installing any new fixture a permit from the city is required. Ask us about it.


Our mission at Canada Waterproofers Oakville is to make sure you feel safe in your home through any inclement weather. We understand flooded basements can be frustrating and can cause serious damage to your property. Allow us to prevent that from happening. By taking the proper precautions ahead of time, you can ensure you protect what will likely be the biggest investment of your life – your home.

Sump pumps and backwater valves are services we offer in order to ensure your basement is waterproofed and protected against any flooding.
Thank you,
Canada Waterproofers Oakville Team

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