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Basement Waterproofing in Kitchener & Waterloo

Leading Basement Leak Repair Experts
in Kitchener

Welcome to Aquamaster – the leading basement waterproofing company serving Kitchener & Waterloo area since 2009. Our services range from basement leak detection and foundation crack repairs to basement uderpinning, sump pump installation & cleaning, to basement underpinning in Kitchener & Waterloo. Get started today with 10% discount offer!

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Aqumaster Basement Waterproofing Contractors in Kitchener and Waterloo area

Basement Waterproofing to Repair Basement Leaks

Signs that you Need Basement Waterproofing in Kitchener & Waterloo

Basement waterproofing is complex and can include a variety of services from full-scale basement waterproofing projects to smaller exercises like sump pump maintenance, basement leak detection or foundation crack repairs, and even basement underpinning.


All these services are designed to accomplish one thing – make sure your basement is dry & cozy. Here is a couple of signs that you need basement waterproofing in the Waterloo & Kitchener area:


In case you see these or other signs of wet basement, don’t wait, talk to expert Basement Waterproofing contractors today. Book your free on-site estimate!

Personalized Basment Waterproofing Solutions in Kitchener & Waterloo Area

List of Basement Waterproofing Services we Provide in Kitchener

Infographics about Where Basement Water Leaks Come from

Basement waterproofing solutions can include different services for different properties. The specifics will depend on your budget, the extent of water damage, the specific location of your home, and other factors. Our basement waterproofing services in Kitchener & Waterloo often include:

Exterior basement waterproofing is a process of waterproofing the foundation walls of a building from the outside. This method is used to prevent water from seeping into the basement or crawl space of a building, which can cause structural damage, mold growth, and other issues. The process of exterior basement waterproofing typically involves excavating the soil around the foundation walls to expose the entire wall surface. The walls are then cleaned and any cracks or voids are repaired. A waterproofing membrane or coating is then applied to the walls, which acts as a barrier to prevent water from penetrating into the basement. In addition to the membrane or coating, exterior basement waterproofing may also involve weeping tile installation around the foundation walls. This system is designed to collect and redirect water away from the building, further preventing moisture from entering the basement.

A sump pump is used to remove water that has accumulated in a sump basin or pit, typically located in the basement of a home or building. The sump pump is designed to automatically turn on when the water level in the sump basin reaches a certain level, and pump the water out of the pit and away from the building. It is important to make sure that the sump pump is properly maintained & services as a broken sump pump can lead to a basement flood.

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 basement 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.

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. The first step is often foundation leak detection. Our teams are trained to deliver quality foundation leak detection & repair services and have all the necessary equipment with them. Let us find the leak in your basement & do the foundation crack repair to address it!

Installation of backflow prevention devices is a very important measure designed to prevent sewage backup into your basement. This will help protect your property from dangerous wastewater damage that is also costly to repair.

Interior basement waterproofing is a process of waterproofing the interior of a basement or crawl space to prevent water from seeping through the walls or floor and causing damage. Unlike exterior waterproofing, which is done on the outside of the foundation walls, interior waterproofing is done on the inside of the basement or crawl space. It is rather a water management technique as it doesn't prevent water from getting into the basement, but helps manage the water that already made it in.

Crawlspace encapsulation is the process of sealing the crawl space of a building with a vapor barrier to prevent moisture and other environmental elements from entering. The encapsulation process involves sealing the walls and floors of the crawl space with a heavy-duty plastic sheet or other barrier material, along with sealing any openings, such as vents or pipes.

Foundation repair refers to the process of repairing and stabilizing the foundation of a building that has been damaged or compromised. Foundation damage can be caused by a variety of factors, including soil movement, water damage, and poor construction practices. Some common signs of foundation damage include cracks in the walls or floors, sloping or uneven floors, and doors or windows that are difficult to open or close.

The foundation repair process typically involves an inspection by a professional contractor to determine the cause and extent of the damage. Depending on the severity of the damage, the repair may involve simple cosmetic fixes, such as patching cracks, or more extensive structural repairs, such as underpinning or the installation of support beams.

Basement walkouts are a popular service in Kitchener & Waterloo areas. This allows to transform your property basement making it a lot more convenient to use. Additional air flow, separate exit construction and the so-much-needed windows will be added to your space!

Foundation crack repair is the process of fixing cracks that have formed in the foundation of a building. Cracks in the foundation can be caused by a variety of factors, including settling of the foundation, water pressure, or shifts in the soil. When left unrepaired, foundation cracks can lead to basement water leaks, serious structural issues, as well as water intrusion, mold growth, and other problems. Therefore, foundation crack repairs should be done as soon as basement wall & floor cracks are detected.

Basement underpinning is the process that helps increase the strength of the foundation as well as lower the basement floors. Basement underpinning is a popular service in Kitchener & Waterloo area because it allow homeowners to add an extra floor of space to their house, thus increasing the amount of space and the value of their property.

A weeping tile, also known as a drain tile or french drain, is a type of drainage system used to prevent water from accumulating around the foundation of a building. Weeping tiles are typically made of porous plastic or concrete and are installed around the perimeter of the foundation, either inside or outside the building. The weeping tile works by collecting water that has accumulated around the foundation and directing it away from the building through a series of pipes. The pipes are typically connected to a sump pump or other drainage system, which then pumps the water away from the building.

Bench Footing

Bench footing is a technique that allows lowering the basement floor  without digging underneath the existing foundation. This allows you to add additional headroom in the basement for a lower price compared to underpinning, however will leave a "bench" which will take away some of the space in your basement. Talk to one of our experts today to discuss how bench footing can help transform your basement.


How Much Does Waterproofing Cost?

The cost of basement waterproofing in the Kitchener and Waterloo area varies between $70-$350 per linear foot. An average price that we often see in the area is around $100 per linear foot. However, the price in your specific scenario will vary depending on the specific basement waterproofing service, the size of the property, how hard it is to access the walls, the extent of the foundation damage, etc. Basement crack repair will normally cost you less, while the interior and exterior basement waterproofing will be more expensive. We often see the price of basement waterproofing to vary between $1,500 and $35,000+ depending on the details.

Learn More About Cost

How Long Does Basement Waterproofing Take?

How Long Will my Project Take?

You can expect your basement waterproofing project to take between 1 day to 2+ weeks to complete. The specific service, materials used in waterproofing (and the initial construction of the property), and how easy it is to access the basement will all influence the duration. Exterior & Interior Waterproofing typically takes about 2 weeks to complete, Crawlspace Encapsulation normally takes 3-10 days, Basement Underpinning projects normally last 4-6 weeks, similar to Basement Walkout Construction (4 weeks on average), while a simple wall crack repair can take as little as 1 day to complete.

Learn More About Timelines

Why Choose Aquamaster Waterproofing?

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!

Our Process for Waterproofing Services


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.

Is Basement Waterproofing Worth it in Kitchener?

What are the Benefits of Basement Waterproofing in Kitchener & Waterloo?

People often ask if basement waterproofing is worth it. The answer is - basement waterproofing is worth the investment. Arguably, it’s a must-have home improvement to ensure peace of mind for the homeowners. Here is why:


  • Protects Construction Materials – basement leak repair means that the construction materials used in your basement walls and floors will be better protected from water damage.

  • Prevents Structural Damage – depending on the type of basement waterproofing that you choose, the foundation of your home may be better protected from hydrostatic damage and the destructive impact of water on your foundation will be minimized.

  • Basement Leak Prevention – basement waterproofing in the Kitchener & Waterloo area also means a smaller chance of basement leaks in the future.

  • Futureproofs your Investment – waterproofing your basement will decrease the chance of basement floods and other water damage. As a result, your investment will be.

  • Increased Home Value – all of the above means that waterproofing your basement will make your property a safer investment. As a result, prospects will likely pay more for it.


These & other benefits make basement waterproofing a must-have upgrade that will not only help to protect your investment but will likely make your commercial or residential property a more desirable investment.


Which Foundation Waterproofing Method is Right for you?

What is the Difference Between Interior and Exterior Basement Waterproofing for Kitchener & Waterloo Properties

Exterior and interior basement waterproofing are two different methods of preventing or minimizing water penetration through your basement walls and floors.


Exterior basement waterproofing involves excavating the soil around the foundation of the building, applying a waterproofing membrane to the outside of the foundation walls, and installing drainage systems to channel water away from the building. This method is more comprehensive and effective, but it can be more expensive and disruptive because it requires digging around the perimeter of the building.


Interior basement waterproofing is a water management solution, rather then waterproofing. It involves installing a waterproofing system on the inside of the basement walls and floors. This may include applying waterproof coatings or sealants to the walls and floors, installing drainage systems, and using a sump pump to remove any water that enters the basement. This method is less expensive and less disruptive, but it may not be as effective as exterior waterproofing as it is focused on managing the water that has already made it to your basement as opposed to preventing water from entering your basement in the first place.

The right solution for your property will depend on the extent of water penetration, your budget, location and other factors. We recommend talking to basement waterproofing contractors before deciding on the type of basement waterproofing for your property.

  • Why is Basement Waterproofing Important?
    Your property may be protected from a number of unfortunate situations by having foundation and basement waterproofing done. Other then catching fire and burning down, flooding in a basement is one of the worst accidents that can happen in a home. When foundations begin to fracture, water can enter the basement and damage the bases of the flooring and walls. In the worst-case scenario, it may even cause a home to collapse. Basement waterproofing applies not just to basements but also the home’s foundations. Basement waterproofing is an essential fix if you have water, mildew, or rotting issues in your basement. Basement waterproofing can both solve any underlying issues in the space and be a preventative countermeasure against potential water damage. 1. Protects Structural Integrity of your Home - another advantage of waterproofing your basement is that it strengthens the structure of your home. Take note: your basement acts as the foundation for your home. It must be robust enough to complete this task. Waterproofing may ensure that your home lasts a prolonged lifespan. This is especially true if your home frequently experiences severe weather or adverse temperatures. 2. Increases the Value of Your Home - If you intend to sell your house in the near future, consider basement waterproofing. A home free of dampness and leaks is a crucial selling element for home buyers, making it more desirable. If you have not improved your basement in decades, buyers may consider it a significant inconvenience. This might give visitors a negative image of your home, especially if they smell the mustiness of old water. Distinct odors and signs of excess water can drive away potential buyers. Basements with waterproofing are also simpler to clean. This is another selling factor that can be desirable to future residents. Your home is more valuable if it is effectively protected and maintained. This adds more value to your home while you still live there and in the case that you do end up selling your home, a return on investment. In most circumstances, you may deduct the expenditures of the waterproofing job. 3. Prevents Mold & Mildew - Mold can be a serious problem if it develops in your home. Mold will gradually destroy the area where it colonizes and has the potential to create health problems for your home’s inhabitants. People who suffer from Bronchitis are especially vulnerable to mold and poor air quality. Mold grows from small spores that are invisible to the human eye and can be found in both outdoor and indoor air. Mold can start growing inside if it is on a damp surface. It simply requires moisture, water, and dust to thrive. Since dust is everywhere, if it settles on a damp surface, it might begin to grow indoors. That should give you an idea of the dangers of a damp or wet basement. However, basement waterproofing can prevent mold buildup from ever happening. Although mold typically stays unnoticed until it has developed, seeking the assistance of a qualified professional is a proactive decision. Certified specialists are trained to deal with mold in the home and are up to date on the latest products, techniques, and laws. Now, prevention is the greatest choice when it comes to keeping mold out of your home. So, if you discover a moisture or water problem, have it rectified or checked as soon as possible. With the benefits of basement waterproofing, there are two main types to consider, exterior basement waterproofing and interior basement waterproofing. Each with its own advantages and applications.
  • What are the Causes of a Leaky Basement?
    There is a number of things that commonly cause basement to leak, here is a couple of the most common ones. Basement Window Wells - Water penetration through your window sill can be caused by water buildup around near-grade basement windows. To remedy this, water entering your window area should be drained by adding or replacing defective window wells, as well as installing vertical weeping tile and a 3/4 gravel bedding. This will keep your foundation from leaking and your basement from flooding. Home Foundations made of Block or Bricks - Air gaps and mortar joints in block and brick walls may allow water to penetrate the crevices of your walls. Water infiltration inside block and brick foundations may be prevented and repaired using a mix of exterior and interior waterproofing methods. Water collecting between brick walls can be drained by drilling into the foundation’s interior to remove the water buildup. Basement Leaks Caused by Joints - joint leaks occur at the intersections of your wall and footing, your basement floor and foundation, and joints where additional extensions have been installed. To repair and fill these various sorts of joints, hydraulic cement is used. The altered cement is critical to preventing more damage and water leaks. Top of Foundation Leaks - If the sill is not sealed or if the original seal has deteriorated, the area where the foundation meets the brick might become a source of water leakage. Maintaining the sill with a waterproof sealant is critical for resolving this problem and avoiding water infiltration into the sill. Water may still pass through this place even if there is no hydrostatic pressure.
  • What is Internal Basement Waterproofing?
    Internal basement waterproofing is another method of stopping water damage and flooding in your basement. While external repairs provide the best solution, an internal project can be performed when foundation digging is not optimal. The internal waterproofing method may be the best option depending on a specific criteria: The area surrounding the exterior cannot be accessed because the space is confined or the area cannot be reached. The water problem is not a foundation leak but a hydrostatic pressure problem, which means the groundwater under the concrete slab raises up and down and causes the water to penetrate through the basement slab or where the wall meets the floor. This groundwater can also mean there could be an underground creek where the house was built. The internal system is an economical solution for unfinished living areas. Interior Wall & Floor Sealer - Internal waterproofing allows you to install drainage on the inside of your home, rerouting water intake to a correct point of release. The major advantage of implementing an internal waterproofing system is that it may collect water passing through the wall and beneath the footing. Basement walls that have been pierced will be drained away by our drainage membrane, creating a barrier between your wall and your living space. Water that travels beneath the footing might cause wet spots and leaks on your basement floor, which will be covered by the drainage board and drained through new weeping tiles. Sump Pumps - The fundamental component of every waterproofing system is a place where the water in the system may be discharged. When current drainage is clogged or there are no other drainage alternatives, your expert may recommend a sump pump installation. In your basement, a pit is dug to serve as the lowest point of your waterproofing system. Inside the pit, a high-quality plastic liner is put, allowing water to flow in by gravity drainage. The trigger of a sump pump, which ejects water from the sump pit to the exterior of the home, detects water buildup. We only utilize high-quality pumps and plumbing materials, and we also provide battery backup pumps that will keep working even if your power goes out. Before we perform any work, we provide you with the same inspection service. This is important to ensure that we cover every problem that is leading to a wet basement issue. After we have identified all of the trouble areas, we will provide you with the best internal waterproofing solution for your unique needs. Our internal waterproofing solutions may include repairing all cracks or breaks in your foundation walls, adding a waterproof membrane to the interior and replacing any defective weeping tiles. A French drain installation can also be part of your solution. This image gives you an overview of some of the problems that cause a wet basement: No matter how well your home was built, the basement can still develop leaks. Homes are constructed to meet industry and safety standards. However, over time, homes settle and the foundation walls and floor may crack. Other water problems may come from the water table under your home or changes in the city sewer system. A small leak now can turn into a major problem as time passes. Leaks also create mold, mildew and water damage. This can end up requiring very costly repairs to your home. Professional basement waterproofing requires knowledge and skills, along with the right resources and tools. A fully effective treatment includes addressing drainage and adding sealers. Once your basement is professionally waterproofed, it will remain dry. We guarantee this. Call us, or email us today, so we can provide you with an inspection and a cost effective solution to your leaky basement problem. Our licensed experts are ready to fix any type of foundation problem you are experiencing.
  • What Causes Basement Interior to Leak?
    Damp or Wet Basement Flooring - the source of water entering the basement through the concrete floor or where the basement walls meet the floor is most likely subterranean groundwater. Rising groundwater and saturation produce hydrostatic pressure during rainy weather, which pushes against the foundation and drives water through cracks and gaps in the concrete. This stress can cause cracks in the basement floor and walls. Visible White Substances on Walls - limestone, clay, mortar, and aggregate make up concrete and the white border or patch you observe is calcium evaporating from the block. It is a sign of water or too much moisture and should be treated carefully. It is referred to as efflorescence. Since this will only show on concrete, you will only be able to see it if your basement is not finished. Other indicators will develop if your basement is experiencing excessive leaking, water damage will nearly always show some kind of warning indication. Painted Walls Appear Damaged - paint can peel away from the surface it was painted on as it ages, similarly to peeling paint in older homes. It does not, however, flake off just because it is aged. Paint may peel for a variety of reasons, including the paint being the incorrect type for the material it was painted on, the surface not being properly prepared, or humidity or moisture in the walls you painted on. Wet surfaces will not hold paint. Water vapor will discolor it, causing it to peel off the wall or poke holes in it. This can be a direct indication that the walls of your basement are holding too much moisture or are very damp. Excess Rusting - metal rusts when there is an abundance of moisture in the atmosphere. Rust can form on fuse boxes, water heaters, jack posts, and appliances due to excessive moisture and humidity. When rust occurs, remove it completely and repaint it as soon as possible, and then analyze the source of the moisture. The rust will return if not addressed immediately.
  • How Exterior Basement Waterproofing Works?
    External waterproofing is 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. Power washing and then power drying the foundation walls is the best way to detect hairline cracks or fissures. Once the problem areas are uncovered, then each problem is handled separately. A flexible, cement sealant is applied to all the exposed areas of the foundation, which adds extra support and protection to the concrete foundation by strengthening the existing walls. 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. Outside drainage is another part of the waterproofing solution. Many homes still have the old-fashioned clay weeping tiles, which degrade and clog over time. Outdated drainage pipes are replaced with modern weeping tiles, which are made of plastic and perforated so they don’t clog as easily. Done correctly, external waterproofing will keep the foundation and basement watertight for decades. We are going to demonstrate the best practices of basement waterproofing that have been tested, proven and working for many years for all our clients. We are not talking about magic waterproof paints, channel drain tiles that sit on top of the footing, molding drainage system and e.c. None of them completely, and more important properly solve the wet basement issue. Most of the waterproofing systems have been designed for easy installation, and not for how well they will perform. That little box of tricks doesn’t take you very far. In fact, it sometimes takes you nowhere. The real best practice isn’t a particular product at all. It is a well-defined series of steps that conduct to effectively performing system. The Aquamaster’s approach is significantly different from quick fixes. It’s not based on guesswork, and it doesn’t have the excitement and appeal of magic products. Our solid knowledge, craft, skill, and expertise prove that it always works. Exterior waterproofing is a method of repairing a leaky basement from the outside of your home by exposing the foundation and applying the necessary waterproofing material to create a foundation waterproofing system that redirects and disperses water away from your foundation walls. This is one of the most effective waterproofing options for basement leaks and the most typical method of basement foundation repair. Aquamaster has been providing professional waterproofing to Toronto homes for many years. An external waterproofing solution is the best choice to provide the highest level of protection against basement flooding and water damage. Our experts understand the processes fully and we offer complete transparency in all the work we perform. We will explain every step of the process to you so that you will know what to expect from our work. Poor foundation drainage, high levels of groundwater, major storms and foundation cracks can all contribute to a wet basement and water damage. We will consult with you and inspect your home, drainage systems and property. We look for any problem areas and will discuss the recommended solutions to provide you with permanent protection from leaks and moisture. Every home is different and Aquamaster provides customized solutions for every job we complete. The work may involve repairing cracks with epoxy or replacing the waterproofing membrane along your foundations. In the majority of cases, external waterproofing involves digging down to the footers of your foundation to locate all the problem areas and ensure that your basement is fully protected. On some occasions, we may not have to completely dig out the foundation. You may simply need to have your weeping tiles replaced or a French drain installed. If your existing drains are clogged, the groundwater will back up and place additional pressure on the foundation walls, forcing water into any cracks. A complete inspection of your home’s drainage system and foundation is the only way to truly know what work needs to be done. The experts at Aquamaster will provide you with a customized plan to repair your basement that includes a full guarantee. We understand waterproofing in Toronto and the Greater Toronto area and our staff are experienced professionals.
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