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Basement Waterproofing Markham

Not your Average Waterproofers, Toronto's Best

Welcome to Aquamaster, your trusted source of basement waterproofing Markham. Since 2009 we’ve been helping keep commercial and residential properties safe from water damage. We are so certain of our quality, we guarantee it – our basement waterproofing services come with a 25-year transferable warranty.


Get 10% off some of our most popular services:

  • Basement Waterproofing

  • Sump Pump Installation

  • Basement Underpinning

  • Foundation Crack Repair

  • Basement Leak Repair

  • Trenchless Pipe Replacement and more.

Built to Last for Decades

Team of Basement Waterproofing Contractors at Aquamaster Markham

What Basement Waterproofing can Help with?

What is Basement Waterproofing?

Basement waterproofing is a broad category of services, designed to protect your basement from water damage. Basement waterproofing services in Markham range from relatively simple services like basement crack repairs, window well installations to services that require more work – sump pump installations & repair, basement underpinning (floor lowering), exterior and interior basement waterproofing, weeping tile installation & cleaning and more.


Most often clients call for basement waterproofing once they discover some of the following signs:

  • Water coming up through the basement floor

  • Water leaking through foundation cracks

  • High humidity in the basement

  • Mold & mildew growing in the basement because of the high humidity

  • And even things like – sewer backup repairs etc.


Basement waterproofing services help protect your basement from water damage from different sources. For example – exterior basement waterproofing helps prevent water from entering your basement through the walls, while window well installations will prevent water from entering through windows etc.


If you are looking for basement waterproofing service, join thousands of happy clients that chose Aquamaster today!
Talk to one of our basement waterproofing contractors today & get 10% OFF our services!

Is Basement Waterproofing Worth it?

What are the Benefits of Basement Waterproofing in Markham?

Basement waterproofing is worth the investment. Arguably, the benefits of basement waterproofing services are well worth the cost. Basement waterproofing will help you to prevent basement leaks, but also to:


  • Prevents Basement Leaks – we highly recommend doing basement waterproofing before you need it. This way, instead of basement leak repair you will  be working to prevent basement leaks altogether.

  • Cozy Space – basement waterproofing (especially when paired with basement underpinning) will turn your basement into your favorite cozy & comfy space in your home.

  • Health Benefits – mold & mildew can often affect the air quality in your basement. Waterproofing can prevent mold, mildew and fungin from growing in your home. This way you home will be healthier.

  • Energy Savings – it take more effort for your HVAC system to work with humid air. Some of the basement waterproofing services can help make the air less humid. Chances are your energy bill will go down.

  • Protect your Investment – your home is your investment. When you waterproof your basement, your investment will be more safe from water damage.

  • Property Value - all of the above and other benefits of basement waterproofing will likely make your property a more desirable investment. Chances are, people will be willing to pay more for it.


Get one of our basement waterproofing contractors on the phone today to discuss what ideal waterproofing project should look like for your property.

Take advantage of years of quality basement waterproofing experience at Aquamaster. Start today!

Extarior Basement Waterproofing for a New Construction in Markham

Some of our Basement Waterproofing Services

What is Included in Basement Waterproofing Services?

Infographics - How Basement Waterproofing Works

Depending on your specific basement waterproofing objectives, the budget, the extent of the damage, and other factors our basement waterproofing contractors will help design an optimal approach to basement waterproofing for your specific property. Here is a couple of services that are the most important in Markham.

Also known as interior waterproofing is another approach to solving the wet basement problem. It typically involves applying a waterproof coating or membrane to the inside of the basement. Following the interior waterproofing methodology, the water is channeled with a weeping tile to the sump pump that pumps the water from the basement outside. This method is technically not waterproofing, but rather a technique designed to manage basement water.

A sump pump is a device used to remove water that has accumulated in a sump pit or basin, typically found in basements or crawl spaces of buildings. Its primary function is to prevent flooding and water damage by pumping water away from the building's foundation. The sump pump is typically installed in a specially constructed pit or basin called a sump pit. Water enters the pit through drains or natural groundwater infiltration. When the water level in the pit reaches a certain threshold, a float or pressure sensor activates the sump pump & it pumps the water out of your basement.

Basement Sewage Cleanup

As a part of basement waterproofing services, we help our clients solver problems caused by sewer backups that can severely damage your property.

Plumbing rough-ins refer to the installation of the initial plumbing infrastructure in a building before the walls and floors are finished. This includes installing pipes, vents, and drains that will connect to future plumbing fixtures such as sinks, toilets, and showers. One of our most popular services when working with new construction.

The perfect approach to basement waterproofing. Exterior waterproofing is a method of basement waterproofing used to protect your property from water damage. It's complex and comparatively expensive, but it can give long-lasting results and actually protect your foundation from contacting the groundwater. We are often called to deliver exterior waterproofing for the new construction, as well as for existing properties in Markham and beyond. Get one of our contractors on the phone today!

Nothing increases the value of one’s property as much as more square feet. Basement Underpinning Markham will create additional living space in your property. More square feet = more value. Basement floor lowering often goes hand in hand with basement waterproofing to help prevent future damage to your future basement renovations.

Basement walkout construction can be an excellent way to give a new life to your basement. From getting more air & sunlight to adding the convenience of a separate entrance. Basement walkouts are an excellent way to make your property more usable.

Weeping tile installation and weeping tile cleaning services are crucial parts of making sure your wet basement problems are solved. A weeping tile drainage system will help collect water around your foundation and will direct it away. This way the amount of water around your basement is reduced which can help reduce the damage it can do to the foundation walls and your basement.

Foundation cracks can be caused by a variety of factors, such as settlement, shifting soil, or water infiltration. As a building settles, the foundation may shift, causing cracks to form. Shifting soil, such as expansive clay soils, can also cause foundation cracks. Water infiltration can cause the soil around the foundation to expand and contract, which can put pressure on the foundation walls and cause cracks to form. Foundation crack repair method will depend on the size of the crack and other details.

Emergency Basement Flood Repair

Damaged water lines, broken hot water tanks, water overflows, sewage overflows, and many other things can lead to basement floods. A certified team of Aquamaster Plumbers & basement waterproofing experts will deliver basement flood restoration services, basement dry out & disinfect the basement after flooding. If you need basement flood repair, don't wait call right now!

Basement Leak Detection & Basement Leak Repair

If you are experiencing wet basement problems or see foundation leaks on your walls, this could be a sign that you need a foundation leak repair.

Before repairing the leak our team will work to identify the source. Basement leak detection will help identify the source of water infiltration in a basement. Water infiltration in a basement can be caused by a variety of factors, such as cracks in the foundation walls, damaged or clogged drainage systems, or groundwater seepage.

To detect basement leaks, professionals may perform a visual inspection of the basement walls and floors, or use specialized equipment such as moisture meters, thermal imaging cameras, or dye tests to pinpoint the source of the water infiltration.

Which Foundation Repair & Waterproofing Approach to Choose?

What is The Right Basement Waterproofing Method for You?

Interior waterproofing - involves the use of interior drainage systems, sump pumps, and/or coatings applied to the inside walls of the basement to prevent water from entering the basement. Interior basement waterproofing is not really basement waterproofing, but rather a water management solution. Water will still make it through the walls (and can potentially damage them), but will then hit the waterproofing membrane and will be directed to the drainage system to the sump pump and will be pushed outside the basement.

Benefits of interior waterproofing:

  • Less expensive than exterior waterproofing.

  • Does not require excavation and can be completed relatively quickly.

  • Effective in managing water that has already entered the basement.

  • Can improve indoor air quality by reducing humidity levels.

Exterior waterproofing - involves excavation around the perimeter of the foundation, application of a waterproof coating, installation of drainage systems, and backfilling with gravel to ensure water is directed away from the foundation.

Benefits of exterior waterproofing:

  • Provides a permanent solution to water infiltration by preventing water from reaching the foundation walls.

  • Can increase the overall value of the property.

  • Can prevent damage to the foundation walls, which can be costly to repair.

  • Protects the structural integrity of the building by preventing water from entering the basement or crawlspace.

While these are the major basement waterproofing solution, there is a lot of details to consider and many additional services to choose from. That's why it's optimal to get a professional basement waterproofing contractor on the phone and discuss what basement waterproofing solution will be right for your specific spenario.

Why Choose Us?

3,000+ Happy Clients Chose Aquamaster


True Warranty Coverage

Work, meterial and labour for 25 years. Fully transferable from owner to owner.

24-Hour Emergency

Our emergency team is available 24 hours a day.


Licensed & Insured

Aquamaster team is fully licensed & insured to work in plumbing, concrete, underpinning and waterproofing.



We offer all our clients 20% Off their first Aquamaster service. Get the offer today!

In Business Since 2009


We've been around for a while. We will be around for a lot longer!

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Proudly Serving South Ontario

Aquamaster team is proudly serving multiple locations in Toronto, GTA and multiple locations in Sothern Ontario.


Best Materials

We always choose high quality materials because we want to provide high quality service. 


Peace of Mind

Our service is well-thought through, so you don't have to worry about it!

Basement Waterproofing Reviews

What Our Clients Say?


Stephanie G.

Residential Client

I used Aquamaster for two separate home waterproofing projects and I was extremely satasified with their work and price. Their team are highly skilled, thorough and were able to complete the 10.5 hour job in one day. They were even kind enough to seal my window frame after I noticed a minor leak. I would highly recommend Aquamaster for all your waterproofing and plumbing needs.

The Aquamaster team is absolutely fantastic! They went above and beyond to diagnose and correct the problem that I had with my basement plumbing caused by old pipes and persistent tree roots. I used them once in 2012 and in 2020. I cannot say enough good things about this team - Highly recommend.


Felicia F.

Residential Client


Chris D.

Residential Client

Aqua Master quoted me a very fair price for waterproofing and finshed the job ahead of schedule. We haven't had any water issues in our post-war hm since then. Highly recommend this business for its professionalism and quality of work. Hire with confidence!

How it Works?


Discovery Call

Connect with one of our certified experts, so we can advise on the best way to approach your project.


On-Site Survey

More complex projects require on-site surveys, where a certified Technician will provide a no-obligation estimate.



We sign a contract that outlines details of your project.



We do the work, you get peace of mind and a 25-year transferable warranty.

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What are your Service Areas?

Proudly Serving Southern Ontario and Beyond



King City










And Southern Ontario...

Get Started with 10% Off Today!

Unparalleled quality service, 25 years warranty, all available today with 10% off.

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