North York

Backwater valve cost Toronto

These costs are an average and each job is unique, Sometimes the cost will be lower or higher. If you want to find out exactly how much it will cost you to Install a main line backwater valve (BWV) or to fix your basement leaks then  contact us, Backwater valves and Basement Waterproofing should be left to the professionals so let Canada Waterproofers do your job so you know its done right!


Interior Backwater Valve installation $1600 – $2600


backwater valve


            Exterior Backwater valve Installation $2400 – $4200   



     Cost of Backwater valve permits $198.54     

Don’t worry we take care of this process!

Building permit cost


Toronto rebate for installing a Backwater Valve $1250


$1250 rebate for backwater valve


Or perhaps you would like to find out how much our Basement Waterproofing services Cost?

Click the Calculator below to see how much it all will cost! or (CLICK HERE) to see our other waterproofing costs


waterproofing calculator

Now that you have a rough idea what it will all cost, Lets make an appointment so that we can assess your basement and provide you with a FREE NO OBLIGATION quote! CONTACT US!


      CALL US: (416) 333-LEAK (5325)



That can cause water damage, to the backyard patio area, for example, or it can lead to mould. Standing water can become a breeding ground for mosquitoes.

It also raises the risk of a flood into your basement, since increased rainfall means increased water soaking into the soil, building up pressure on the cement walls.

Cracks form in the walls over time. Cement is porous, so it’s only a matter of time before you start seeing water leaks in the basement area. In older homes, with foundations made from cinder blocks, water can make its way through the mortar.

A French drain in the backyard is one way to channel water away from your home, or from areas where it has pooled.



  • Decide where the water is pooling and decide where you want the water to go – into other bodies of water, or the road curbside. You should run a downspout connection into the French drain, to channel rainwater flowing off the roof into the drainage system and away from the house.
  • Use spray paint, or stakes with string, to mark the width, length and direction of the trench.
  • Dig a trench three feet deep, around 12 inches wide.
  • Trenches should be dug parallel to the home or horizontally across slopes in the backyard.
  • Make sure you dig a trench that has a good slope away from the house, so the water flows downward. Slope it down one inch for every 10-12 feet of trench. Again the over-riding objective is to take the water away from the house so it doesn’t seep into your basement, or away from areas in your yard where the water has pooled.
  • Lay down a filter fabric along the trench, so dirt or grass doesn’t clog the holes in the pipe.
  • Place the correlated, perforated pipe into the trench. The holes in the pipe should point downward, into the soil.
  • Pour gravel into the trench, over the top and down the sides of the pipe. The gravel blocks out excess debris.
  • The water in the soil will enter the pipe from an inlet at one end, or soak into the perforated pipe, along its entire length, and flow away to another location.
  • The end of the pipe should pop out of the trench by the roadside or into another pool of water.
  • Backfill the trench with topsoil to completely cover the drainage system. Re-seed the area if you want or cover it with landscaping stone.

The bottom line is to ensure you have a backyard area with a drainage system that can handle the excessive rainfall we have been seeing. And it is vital you have a system in place that channels water away from your home’s foundation. A French drain provides a sunken, easy reliable path to push water outside of your backyard.

Contact Canada Waterproofers today for a free consultation about a backyard French drain system.



If you needed any further reminder that climate change is for real, with more frequent, heavier and intense rain shower events the new reality, we give you last week around the Toronto region.

That was a real mega storm that hit last Wednesday – power knocked out across the city, vehicles stuck in mini lakes of filthy, sludgy water as the municipal sewer system backed up, tornado watches, trees knocked down, home basements flooding all over the region.

Environment Canada nailed the prediction – 70 millimetres of water would fall in a short period of time, and that’s exactly what happened.

The other theme that came out of last week was the unreliability and general decrepitude of municipal sewer systems, incapable of handling sudden deluges of heavy water.


basement flooding

basement waterproofing


On the home waterproofing company front, phones were ringing and buzzing non-stop. A lot of the calls involved overland water that was flooding homes. Landscaping should be a focus to help counter this. You need to keep the water away from the house. Slope the ground away from the foundation, around six to 10 feet. Install asphalt or patio stones next the home, so water doesn’t settle into the soil.

Make sure the eaves-troughs and gutters around the home are clean. Water will overflow if they are clogged by dirt or leaves and will over-saturate the ground next to the foundation walls. Make sure downspouts are directed to where you want the water to go, like a garden.

There were also a lot of home drain backups because of the sudden rainfall, which a backwater valve installed in the home would have solved.

Also, to avoid a home flooding emergency, not only should homeowners look to install devices like backwater valves, but they also need to ensure the weeping tile system around the perimeter of the home is disconnected from the municipal sewer system and is instead connected to a sump pump, so water is being correctly directed away from the home and out to an area well away from the basement.

All of these are basic elements that go into an effective home waterproofing system.


Increases in air temperatures and variability in precipitation is a reality all over the world, connected to extreme weather-related events, especially heavier rain storms. This is all tied to human-related, global emissions. The Canadian government says that the amount of extreme precipitation events for a short duration (a day or less) will only increase.

Whether you believe in the impact of climate change or not, more and more homeowners are not willing to risk their real estate investment in the event there is a major storm and ensuing home flood.

The cost to repair flood-related damage to the home is immense. There are a lot of situations where homeowners didn’t have overland flooding insurance. According to a report by the Insurance Bureau of Canada, a flooded basement in 2018 cost an average of $43,000 to repair.

It is vitally important that homeowners get a quality waterproofing system for their home.

Call Canada Waterproofers for a free, no-strings-attached estimate.





Waterproofing the basement of a home has become more necessary in recent years. Climate change is the issue of our age. More water evaporates into the atmosphere as the weather warms up. Downpours are heavier.

Humans have caused this, and the world now is grappling with ways to combat it, as the situation worsens. Last spring and summer, there was widespread flooding that affected thousands of Canadians.

The costs to everyday Canadians as a result of climate change continue to rise. The bottom line is heavier rain increases the risk that your home will experience a flood or a sewer backup. The home’s foundation drainage system is interconnected and complicated, and includes the city’s sanitary sewer lateral, perhaps a storm service lateral (in newer homes), a weeping tile system that channels water away from the foundation, drain pipes and sump pumps. Any failure there leaves the home exposed to flooding.

Anyone who owns or rents can talk about the emotional and financial costs of a flood. According to a report by the Insurance Bureau of Canada, a flooded basement in 2018 cost an average of $43,000 to repair. Flood insurance covered some of that cost, but likely not all of it.

It is vitally important that homeowners get a quality waterproofing system for their home. Call Canada Waterproofers for a free, no-strings-attached estimate.


External waterproofing is the costlier method, but there is a reason for that. Particularly vulnerable areas in the house are where the concrete floor meets the wall, through the mortar between concrete blocks, or through the home’s foundation walls themselves.

Water pressure on your home’s perimeter only gets worse as rainfall levels increase, and the ground becomes more saturated. Exterior waterproofing attacks that problem at its source, and is a sure fire way to keep your home dry and safe.

It’s also a major excavation project, and should only be handled by licensed professionals. Workers will dig down to the home’s footing level, all around the perimeter. They’ll clean the cement wall, repair any cracks with hydraulic cement. They’ll apply a foundation aqua bloc, fiber mesh for reinforcement, then another coat of aqua block and polyurethane. Then they will install Delta MS drainage membrane, and a new “Big O” weeper tile with filter designed to push water away from the home’s foundation.

Exterior waterproofing is the most complete approach to keep a basement dry.


Anyone looking to buy a home now will ask about its waterproofing protection, since the warming of the climate and heavier rains are now front and centre in people’s minds.

If an individual hasn’t experienced a flood directly, they will likely know someone who has, and understand the immense financial and emotional cost that comes with a flood. That includes family keepsakes and work files that could be lost.

The home purchase is the most important investment most of us will ever make. We only want the value of that investment to go up. If there is a flood, with the longer-term water-damage implications that come with that, including mould and mildew, that will only eat away at the home’s value.


With the right information, and for a few hundred dollars extra per year, homeowners can take proactive steps to have the proper insurance in place to protect their home from flooding.

Call your insurance company to make sure you have adequate coverage, since older plans may not cover overland flooding, which has become a more common problem with the increase in rainfall.

Traditional insurance covers damage caused by sewer backups, which is of course important, but your plan may not cover water that flows into the basement through cracks in the walls or via window wells. Insurers only began offering overland coverage over the past few years.


Prices vary depending on the complexity of the job, but exterior waterproofing starts at around $100 per foot and can go up to $1,000 per foot. The depth of the home’s foundation is a major issue in determining cost.

The cost for interior waterproofing ranges from $75 per foot up to around $250 per foot.

Call Canada Waterproofers for a free assessment and cost estimate. Keep in mind that the city of Toronto offers subsidies for the installation of flood protection devices.





We are fast coming up on summer, which means more rainfall. That means a greater risk of flooding in the basement of a home.

These are uncertain economic times, so the cost to waterproof your home is more of an issue than ever before.

Canada Waterproofers offers the most competitive rates in the industry. Each work project is custom-made to the client’s needs. The estimate process is fully transparent – there are no hidden surprises or additional costs when our work is done. Our clients are with us the entire way. We have an over 25-year history of success in the region to back up that claim.

Canada Waterproofers offers a full array of services – interior and exterior waterproofing, drain repair and plumbing work, sewer back-up and pipe snaking services, backwater valves and sump pumps, concrete floors and basement foundation repairs, and underpinning (basement lowering).

All our technicians are licensed and we fully back up any of our work with a warranty, so our clients have no worries in those areas. Rest assured no amateurs will ever touch your property – since the home is the most important investment most of us will ever make in our lifetime, measured both in money and emotion.



Exterior waterproofing is one of the more comprehensive jobs – since there is a lot of excavation work involved, digging a trench down seven to eight feet, to the footing of the home, around the entire perimetre. It’s also the most sure-fire method of protecting your basement from water leaks, since it tackles the problem at the source – hydrostatic pressure against the home’s foundation, as the soil becomes more saturated.

The cost for exterior waterproofing is between $100 to $350 per linear foot and depth. It’s complicated and labour intensive, and involves many different steps. It’s not a job for a weekend warrior.

Interior waterproofing doesn’t cost as much – between $70 and $200 per linear foot – because there isn’t anywhere near the amount of excavation work you see with an exterior job.

Interior waterproofing is also a very effective way of keeping your basement dry – re-directing water away from the basement via a system that includes installing drainage membrane on the walls, opening a trench against the interior wall, installing four-inch “Big O” weeping tiles to drain water away, as well as setting up a sump pump – an electronic device that pumps water to an outside location.

Some of our clients opt to have both exterior and interior work done, to really guarantee that the basement will stay dry.

The cost to fix a cement foundation that is cracked can range between $1,600 and $3,200, all depending on the depth and width of the crack. Canada Waterproofers can also take care of any spot repair (a section of the wall) in the home’s foundation, up to eight feet wide and eight feet deep – anywhere from $1,600 to $3,200.

The cost to install a window well, including waterproofing the wall up to eight feet wide and eight feet deep, is between $1,600 and $3,800.



Egress windows add value to any home, improving both ventilation and natural lighting. You can do it yourself, but it’s also a big job – a lot of excavation, cutting into cement, installing a drain system. Perhaps the biggest reason to install egress windows is to provide an escape route from the home in the event of a fire or another emergency situation. Depending on the size of the opening, the cost is typically between $3,200 and $5,800 (not including the cost of the window).

Basement underpinning is a major job and starts at $80 per square foot, concrete floor repairs start at $30 per square foot, drain repair starts at around $1,600, and pipe-snaking services start at $180.

The cost to install a sump pump tank is between $465 and $3,500, depending on whether it’s a full installment of a tank (which involves cutting through the cement floor, excavating the area where the sump liner and pump will be installed and connected to the existing ABS pipe that extends outside) or just replacing a pump that has been installed but is no longer working.

Backwater valves are a vital tool in waterproofing – it is a device with a flap that opens to allow water from sinks, toilets, showers or tubs to exit the home, into the municipal system. That flap will close if there is a backflow from the city’s sewer pipes, back into your basement.

Costs vary – $1,600 to $3,700 – depending on whether the backwater valve is inside or outside the home, and also the depth required to install it.

Keep in mind – the city of Toronto offers subsidies to homeowners for the installation of flood protection devices.

Call Canada Waterproofers today for a free assessment of your situation, and get a quote for any of our services.

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  • Waterproofing

  • Drain Repair

  • Plumbing

  • 100% free estimate

  • 25 year transferable warranty

  • Fully Insured