Basement Waterproofing Scarborough

Waterproofing, Wet & Leaky Basement Repairs

Aquamaster Basement Waterproofing Scarborough is considered one of the leading basement waterproofing companies in the area. Our flexible pricing options, licensed & insured team, as well as quality materials and top-notch workmanship allowed us to earn The Best of Basement Waterproofing for three years straight!
Our services include basement waterproofing & foundation repairs of any difficulty. From basement leak repairs, interior & exterior waterproofing to foundation repair, basement underpinning and more.
We offer a future-proof 25 years warranty. Book a FREE estimate today!
Built to Last for Decades
Common Wet & Leaky Basement Problems

Common Basement Waterproofing Problems in Scarborough

We recommend consulting with professional basement waterproofing contractors as soon as you see a basement leak or experience any other wet or damp basement problems.

We often see people living in Scarborough come to us for the following wet basement repairs:

    • Leak Detection – in some cases you may see wet basement walls or floors and not know where the water comes from, leak detection services will help

    • Basement Floor – we often see water coming up from the basement floor or entering the basement where wall & floor meet

    • Damp Smell – can be caused by a variety of problems including mold & mildew

    • Water Pooling on the basement floor

    • High Humidity

    • Other Problems – like efflorescence, cracked concrete, tie rod leaks, and more

It’s often a good idea to opt in for basement waterproofing before you get the first basement leak, as this can potentially save you a lot of money on foundation repairs & and renovations in the future.
But any basement waterproofing project, no matter how big or small start with a FREE estimate, talk to one of our experts today!
Basement Waterproofing Cost Toronto

How Much Does it Cost?

You can expect to pay $70-$350 per linear foot of basement waterproofing in Scarborough. An average price for this service sits at $100/linear foot. When estimating the price our waterproofing contractors will account for the ease of access to the basement walls, foundation damage (if any), waterproofing materials used in the project and other factors. Our scope of work for waterproofing projects can include: Interior Waterproofing is $70, Exterior Waterproofing ~$90, Foundation Repairs (from $1,500-$3,200) depending on the depth of the crack. An addition of Sump Pump Installation will cost around $500, Window Well Installation – from $1,600, and Battery Backup Pump price starts from $1,200.
How Long Does Basement Waterproofing Take?

How Long Will my Project Take?

An average basement waterproofing project takes from 1 day to 2+ weeks to complete. Our experts will estimate specific timeline during the FREE estimate. Duration will depend of the scope of work, materials, how easy it is to access the basement, the materials your basement is made of, and more. You can experts Internal Waterproofing to take up to 2 weeks, Exterior Waterproofing about 2 weeks, Basement Wall Crack Repair – typically take 1 day, while Foundation Repair time varies depending on the extent of the damage. Bench Footing and Basement Underpinning will take about 5 weeks to complete. Window well installation normally takes 1-2 days, while Crawlspace Encapsulation will take 3-10 days. If you are looking for a Basement Walkout Construction you can expect your project to last about 4 weeks.
Some of Our Basement Waterproofing Projects

Flexible Basement Waterproofing Services Scarborough

When designing your project, our team of waterproofing contractors will consider a number of factors – the location of the property, how much groundwater is in your area, the extent of water damage, your plans for the property, your budget, and more. Depending on these factors we will recommend the right basement waterproofing services.
Also known as interior waterproofing is another approach to solving the damp or wet basement problem. It typically involves applying a waterproof coating or membrane to the inside of a building or other structure, such as a basement, crawl space, or foundation walls. This waterproofing helps prevent excessive moisture from entering the structure, which can cause a variety of problems, such as mold growth, structural damage, and decreased insulation. In addition to preventing water damage, interior waterproofing can also help reduce energy costs by making the space cooler and more energy efficient.
Interior Waterproofing Cost – $70-$350/linear foot
The ideal solution to stem water damage, or to prevent excess water from getting past the foundation into the basement. However, external waterproofing does cause disruption to the outside of the home. The soil and underlying gravel have to be removed in order to get a close look at defects on the outside of the foundation. The foundations is then powerwashed & dryed the foundation walls, cracks are uncovered & fixed. A flexible, cement sealant is applied to all the exposed areas of the foundation. Then a heavy polyurethane drainage mat is attached to the exposed walls. This extra protection on the outside ensures the foundation will ward off any excess buildup of groundwater.
Exterior Waterproofing Cost – $100-$300/linear foot
Basement underpinning or basement floor lowering services. An excellent way to turn your basement into a comfy living space. Basement lowering will create additional space in your basement and is a smart investment before finishing the walls and ceilings in your underground cozy space. Both floor lowering and basement waterproofing services are a great way to increase the value of your home.
Basement Underpinning Cost – $85-$450 per linear foot

Sump pumps are mechanical devices that are used to remove excess water from the basement or crawl space of a building. It is typically installed in a sump pit, which is a hole dug into the basement floor or crawl space. The sump pump is designed to automatically activate when the water level in the sump pit reaches a certain point, and then pumps the water out of the pit and away from the building via discharge line. A sump pump is a common element of internal waterproofing systems that can include one or more sump pumps.

Sump Pump Installation Cost – $500-$3,600
Foundation cracks are almost guaranteed to turn into a basement leak in the future, if not repaired in time. In order to deliver basement crack repair for your wall and floor they are injected with an epoxy-resin solution that bonds the pieces of the concrete foundation together. In some cases, more extensive foundation repairs may be needed.
Foundation Crack Repair Cost – $1,500-$3,200
Backwater valves, also known as a backflow preventers or sewer backup valves are used to prevent the reverse flow of wastewater or sewage into a building’s plumbing system. It is an essential component in preventing flooding and contamination in homes and commercial properties, particularly in areas prone to sewage backups or flooding.
Window wells are excavated, below-ground spaces around basement windows designed to allow natural light into the basement while also providing an emergency exit route. They typically consist of a small, sloped area with a window at the bottom and are constructed with materials like metal, concrete, or plastic.
Window Well Installation Cost – $1,600-$4,000
Basement leak detection works by identifying and locating sources of water infiltration or moisture in a basement or below-ground space. Detecting leaks early is crucial to prevent water damage, mold growth, and structural issues. Leak detection can involve a number of tools such as moisture meters, thermal imaging, visual inspection and more.
If you are looking for quality crawlspace encapsulation services, you found it. Crawlspace encapsulation is a process of sealing a home’s crawlspace from the outside environment to protect against moisture, pests, and other potential problems. It involves creating a vapor barrier, sealing off any air leaks, and insulating the space to ensure it remains dry and free of mold and other issues. This can involve installing plastic sheeting, foam insulation, and other materials to completely seal off the crawlspace and create an airtight barrier.
Basement plumbing rough-ins & basement bathroom rough-ins are some of the most popular services along with new construction waterproofing. They involve our team of Aquamaster waterproofing contractors installing pipes and vents for the plumbing system in new construction projects. This service involves routing pipes through wall cavities, running vent stacks to the roof, laying underground pipes, and installing fixtures and end elements etc.
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.
Basement walkouts, also known as basement walk-ups or basement egress, refer to an exterior entrance or exit from the basement level of a building. These walkouts typically include stairs or a ramp leading from the basement to the ground level. Our team can help with basement walkout construction services to add windows, doors and functionality for your basement!
Waterproofing Products we Use

Basement Waterproofing Materials in Our Projects

We are so certain of the quality of our basement waterproofing, that we offer 25-year transferable warranty with our service. This is because we use some of the best basement waterproofing materials in our projects.
Delta MS Air Gaps, Aqua Bloc 770-06 liquid waterproofing membranes, DMX Drain, Parging Mix, top-quality 3/4 inch limestone gravel, Bakor 990-06 yellow Jacket Fibre Mesh and so much more. These are just some of the waterproofing products we use in our projects.
Learn more about waterproofing materials over the link below, or get one of our contractors on the phone today to discuss what materials may be the best fir for your project. Book a FREE estimate today!

Frequently asked questions

The best time to do basement waterproofing is before you get an a leaky basement.

Basement waterproofing can be done any time of the year. In the summer the ground is dry and not frozen, so excavation will be easier to do. In addition waterproofing your basement in the dry season will help avoid basement leaks i the rainy seasons.

There is a number of benefits associated with basement waterproofing:

  1. Prevent Basement Leaks – basement waterproofing helps prevent basement leaks that will result in additional expenses to fix.

  2. Prevent Structural Damage – your foundation will be protected against water. This means increased life span of the materials used in construction.

  3. Value – this investement will increse the value of your property.

  4. Health Benefits – basement waterproofing will help prevent mold, mildew, fungus, which in turn will make your life healthier. These bacteria present health risks and can cause allergies and respiratory problems in people and animals.

  5. Energy saving – your basement will better retain warmth and you will spend less on heating & cooling.

Leaky basements are often caused by improper installation of exterior waterproofing membranes and sealants, inadequate drainage systems, hydrostatic pressure, and structural damage to the foundation. These issues can lead to water entering through cracks in the foundation walls and floors, and can cause significant damage to the building and its contents.

To prevent leaks, it is important to check the exterior of the home for damage, such as cracks in the foundation walls and sealants that may have been installed incorrectly or have come loose. It is also necessary to make sure the home has a proper drainage system to ensure that water is diverted away from the foundation and not allowed to pool near the house. Additionally, a sump pump can be installed to help remove any water that does make it into the basement. It is also important to ensure that the foundation is structurally sound and that any repairs are conducted by a professional.

Basement waterproofing is worth it, no questions asked.

If done properly, basement waterproofing will give you peace of mind that your property is safe from water damage.

Plus basement waterproofing will help prevent the spread of mold, mildew and fungus. The price of your property will increase, and so will the lifespan of materials used in your property and renovations.

In other words cost of basement waterproofing is a small price to pay for the peace of mind, healthier living and increasing the lifespan of your property.

Basement waterproofing typically takes few days to few weeks complete.

The exact timeline will depend on the specifics of your project and the type of waterproofing used. If the problem is relatively minor, with only a few cracks in the walls or floor, then the job could be completed in as little as a day or two.

If the problem is more serious, with large cracks, then it could take several days to properly seal the walls and floors.

In addition, the waterproofing process may require the installation of special equipment and materials, such as a sump pump or an interior drainage system, which may take additional time to install.

When it comes to basement waterproofing, there are two main methods to consider – interior versus exterior. Both of these options have their own benefits and drawbacks, so it is important to understand the differences between them in order to make an educated decision on which is best for your home.

Internal basement waterproofing is not technically waterproofing, but rather a technique designed to mitigate basement water. Interior waterproofing involves removing about a foot-wide section of the basement floor around the foundation. A trench is then dug out, a drainage membrane is installed on the foundation wall and a weeping tile is placed. The trench is then filled with 3/4 grovel and new concrete is poured in.

How Interior Basement Waterproofing works – this waterproofing system works by draining the underground water from under the basement and alongside footers. The water is then channeled with a weeping tile to the sump pump that pumps the water from the basement outside. While wall conduits like dimple boards are attached to the foundation wall and extended over the new drainage to guide any moisture down into the system.

The downside of the internal waterproofing method is that it does not address potential structural issues with the foundation and does not protect against flooding.

Exterior Basement Waterproofing – the specific methodology that we follow for exterior basement waterproofing will vary on a case-by-case basis. However, in example of a house with a poured concrete foundation exterior waterproofing will involve excavating around the foundation 4” below the top of the footing. The walls will then be cleaned and dried using a propane torch. After that, the foundation walls will be inspected for cracks, holes, and openings and the imperfections will be fixed. We then apply a sealing process exclusive to Aquamaster Waterproofing. Weeping tiles & cleanouts are installed and downspouts pipes are disconnected. The entire trench is then backfilled with river-washed gravel & excavated soil. Landscaping is done. See our unique exterior basement waterproofing process in the FAQ section below.

The best solution for your home will depend on the specific needs of your home and your budget. If you are looking for a long-term solution that offers more comprehensive protection, exterior waterproofing is the way to go. However, if you are looking for a more cost-effective solution that only needs to address seepage and minimal structural issues, interior waterproofing may be a better choice.

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In Business
Since 2009
We’ve been around for a while. We will be around for a lot longer!
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South Ontario
Our emergency team is available 24 hours a day.
We always choose high quality materials because we want to provide high quality service.
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Our processes are well-thought through, so you don’t have to worry about it!

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How Does It Work?

Discovery Call

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


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.