Best Basement waterproofing services in Oakville

Serving Oakville Since 1975, Delivering Dry and Leak Proof Basements With Quality Basement Waterproofing Solutions

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Serving Oakville Since 1975, Delivering Dry and Leak Proof Basements With Quality Basement Waterproofing Solutions



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Basement Water Leakage Problem in Oakville

Every year during the rainy season, lots of people face the problem of a leaky basement. This is because they either have a faulty basement waterproofing system in their basement or none at all. Rainwater around your basement is soaked by the soil, and it ends up entering your basement through the cracks. This leads to water damage on your foundation walls. Mould and mildew flourish in the basement with damp walls, which could be seriously harmful to our health. Without a proper defence mechanism, the walls have to endure hydrostatic pressure, which causes more cracks in the basement walls. Hydrostatic pressure is caused due to still-standing water that has been pushing your walls constantly.

All this leads to transforming your basement into a musty-smelling, mould-infested room that is always damp. Not only that, your foundation walls are badly weakened due to the cracks on them and risk further damage. Your basement becomes practically useless. If properly utilized, your basement can be so much more than that. That’s where we come in; GJ MacRae presents basement waterproofing in Oakville to deliver you a dry and leakproof basement.

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GJ MacRae Foundation Repair:
Your Basement Waterproofing Solution in Oakville

GJ MacRae is a pioneer when it comes to basement waterproofing in Oakville. We are a second-generation family-owned business serving in the area since 1975. That’s almost five decades of serving the community and delivering dry, leakproof basements. GJ MacRae has carried out more than 10,000+ jobs in Oakville, and these numbers speak for themselves. These many customers have put their trust in us, and we always deliver quality service.

We have a team of highly skilled technicians who have been working with the GJ MacRae family for decades. We only use products of the highest quality because we strive to provide longevity and quality in our services. After the GJ MacRae treatment, your basement walls will be impermeable to water, and you can have the peace of mind that you have a completely waterproof basement. All our services are backed with a transferable 15-year warranty. Our dedication to perfection, expertise and skills make us one of the most trusted Oakville basement waterproofing companies.

The GJ MacRae Solution: Basement Waterproofing Oakville

At the moment, we have been proudly serving The GTA:  Hamilton, Toronto, EtobicokeMississauga, Oakville, Burlington, Milton, Georgetown, and surrounding areas since 1975. We specialize in basement waterproofing in Oakville for below-grade concrete blocks, poured concrete, field stone, and rubble stone foundation walls. 

With 10,000+ satisfied customers to date in Oakville and over 40 years of experience, we are the leaders in all phases of foundation repair, from crack repair to weeping tile systems, structural foundation repair and underpinning, all coupled with a full line of drainage solutions, etc.

GJ MacRae Foundation Repair is the home of the true, time-tested 15-year transferable warranty. We guarantee to keep your structure here in Oakville high and dry for years to come. We also issue a true guarantee from Home and Garden Television (HGTV) featured contractor and The Homestars: Best of Award for Customer Service.



Decades of Experience

Trust the experts with almost five decades of experience in providing basement waterproofing services. 

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Serving the GTA

We have been Servicing Toronto, Etobicoke, Mississauga, Oakville, Burlington, Milton, Hamilton and Georgetown.

best service award for water proofing in ontario

Outstanding Service

Home of the original transferable warranty. Licensed specialists in basement waterproofing and underpinning.

family owned water proofing company

Completely Family Owned

Family owned and operated since 1975. Robust liability insurance, WHMIS trained, fully licensed, insured and bonded.

wide range of services

Wide Range of Service

From foundation repair to sump pump installation, we have a solution for all your basement waterproofing needs.


Quality Workmanship

We take pride in delivering the highest quality workmanship, ensuring your basement stays dry for a lifetime

Why is GJ MacRae Your Ideal Choice For Basement Waterproofing In Oakville?

Successfully Completed Over 10,000+ Basement Waterproofing Projects

GJ MacRae Foundation Repair has completed more than 10,000+ basement waterproofing jobs since the company opened its door in 1975. All credit goes to our excellent customer service and work ethic, which have earned many clients' trust. Prioritizing quality service over anything has made us what we are today.

Guaranteed Dry Basements

After the GJ MacRae treatment, your basement is totally waterproof. No matter the amount of rain outside, your basement will remain dry throughout the year. We like to create custom basement waterproofing plans for each basement by considering the amount of rain the area receives, the waterbed level, grading and other factors. This helps us to deliver a totally dry basement.

Five Decades of Experience

GJ MacRae has over 50 years of experience in basement waterproofing in Oakville and surrounding areas. Our staff have been working with us for decades and have carried out numerous waterproofing projects. When such a skilled team meets with quality products, the result is a completely dry and strong basement.

Hand Excavation Rather Than Machine

The GJ MacRae way is to hand excavate the holes instead of using machines. Hand excavation minimizes the risk of damage to the footings and foundation walls. Also, areas with small spaces or other properties very close require compulsory hand excavation. Using hand excavation helps us protect your property's aesthetic and revert the ground to its original state.

Documented Waterproofing Quote

We play no tricks while pricing. Our team properly examines your basement and provides you with a written quote for the basement waterproofing process. Our prices are transparent, unlike some companies, which charge hidden fees and extra charges to the clients. We always stay competitive with our pricing.

Oakville Basement Waterproofing Reviews

We have received thousands of positive reviews across different trusted reviewing sites like Homestars, HGTV and Google Reviews. Satisfied customers across Oakville and surrounding areas have taken their time to appreciate our quality work and customer services.


Joseph PastorJoseph Pastor
16:15 24 Jan 23
Excellent service from beginning to end. We would highly recommend this company. Dean assessed the problem (water leaking into our furnace room as a result of a window well that another company had incorrectly installed previously) and provided a thorough estimate detailing every aspect of the project. He then scheduled the job to be done before the big winter storm that had been forecast. The crew arrived exactly on time and completed the job, to the very best professional standard, in less than a day. We are so glad we chose G.J. MacRae. Thank you very much.
Lisa NeedhamLisa Needham
19:43 11 Nov 22
Amazing Service! GJ MacRae Foundation repair provided timely and superior quality service. Everything went exactly as planned from our initial consult and quote. Workers were on time, the quote was accurate and the work was high quality. We have a perfectionist contractor and he was incredibly impressed with Gavin and the team and he noted that the work was exceptional Inside and out on the project. The site was was clean and looked perfect when completed. Would highly recommend this service to our friends and family and others looking for this type of work! We can’t say enough good things and are so thankful!
16:24 11 Nov 22
Our second time utilising GJ MacRae Foundation; separate issues. Their professionalism and respect for their clients is highly commendable. Office team, sales and on-site crew all compliment each other.Highly recommend GJ MacRae Foundation company!
Kate PapadopoulosKate Papadopoulos
23:28 10 Apr 22
My fiancé and I can not say enough amazing things about GJ Mcrae. As first time home owners with water damage in our basement, GJ mcrae took care of everything so quickly and we’re extremely professional, reducing any worries we had. Would recommend this company over and over again. Dean was so easy with work with and continued to support us throughout the process. Thanks so much for the amazing job.
Adam DAdam D
19:38 11 Oct 20
We had GJ Macrae underpin our 1890s house in Leslieville over the summer. The team showed up on time every day, the project moved so smoothly. I wish I had another basement for them to underpin.Highly recommend GJ Macrae for any basement or underpinning work. The final result looks fantastic, we have a beautiful basement, with nice tall ceilings!The whole team was a pleasure to work with! 5 stars!

Industry-leading Waterproofing Services

GJ MacRae is the leading name for basement waterproofing in Oakville. We provide a wide range of basement waterproofing and foundation repair services. The company was inaugurated in 1975, and we have served over 10,000+ customers since. We have a team of highly skilled and experienced professionals, and we use the highest quality products to deliver lasting results.

We offer a wide range of basement waterproofing services for all types of homes, new and old, including interior and exterior basement waterproofing, underpinning, crack repair, and much more. We carry out our customized basement waterproofing solution at the most affordable pricing.


Basement Waterproofing Oakville

We specialize in basement waterproofing services for below-grade concrete blocks, poured concrete, field stone, and rubble stone foundation walls. With over 40 years of service in the GTA and backed by the most reliable warranty in the business, see what the GJ MacRae difference is all about.


Foundation Crack Repair Oakville

Is there a crack in your poured, block, or rubble stone foundation wall, and is this crack allowing water to leak into your basement? Why do interior crack repair methods simply not work? Trust the experts and see why GJ MacRae Foundation Repair carries the business's most reliable crack repair warranty.


Weeping Tile Systems Oakville

A century-old technology, reborn! Our services also include interior and exterior weeping tile systems coupled with deep insights and experience relating to drainage. Ask us about the difference between interior and exterior drainage methods and enjoy the benefit of our expertise!


Sump Pumps Oakville

Sump pumps and sump basins are integral to all below-grade drainage strategies due to their simplicity, reliability, low cost, and proven effectiveness. Ensure your sump pump, sump basin, and battery backup system are well maintained and ready for the next significant rain or thaw.


Structural Wall Repairs Oakville

Is your home's structure moving, and is this movement accelerating as the years pass? The sooner the integrity of your foundation is restored, the better. We have a full line of time-tested, certified structural foundation repair solutions tailored to your scope and budget.

crumbling foundations

Crumbling Foundations Oakville

Are your foundation walls spalling, eroding, or fragmenting? Is this damage accelerating through the years? Stopping moisture penetration through your above-grade concrete structure is imperative. We offer brush parging, s-type, adhesive, mesh, fiber, and thermal-slurry solutions for a lasting barrier.


Basement Underpinning Oakville

GJ MacRae are pioneers of the overflow underpinning method in the Greater Toronto Area. Our underpinning process allows for safe, reliable vertical increases in basement ceiling height that can turn crawl spaces into full living quarters, all for less than a standard second-story addition.


Structural Carbon Fiber Oakville

When your foundation walls begin to show signs of cracking or bowing, it generally indicates severe exterior lateral pressure from tree roots, hydrostatics, or poorly draining soil. Click here to learn more about our full carbon fiber foundation reinforcement application line.

Window Wells

Window Wells Oakville

Basement windows are a great source of natural light. They can also act as a designated fire escape, but what happens when window wells begin to deteriorate, clog and leak? Our hand-excavated exterior window well repair solutions are permanent and allow for guaranteed unimpeded drainage all year long.

The GJ MacRae Solution: Basement Waterproofing Oakville

First, we need to find all the cracks in the basement walls. We set up tarps and start digging up to the footings to establish all the cracks on the wall. It is important that we go below the grade when looking for cracks.

We use a wire brush to clean the exposed walls and chisel out the cracks. We apply hydraulic cement in the cracks using a trowel. After the cement is set, the cracks are repaired.

We then apply a quick-drying primer to the foundation walls. The primer is crucial to provide extra adhesion to the walls in the next steps in the waterproofing process.

A layer of special Hydroshield is applied on the entire walls using a trowel. This rubberized membrane does not allow any liquid, air or moisture through them. Then we apply a layer of fiberglass mesh on top of the rubberized membrane. This fiberglass mesh provides flexibility to the membrane. Another layer of Hydroshield is applied again on top of the fiberglass mesh. This creates a double coat and gives extra protection.

A thick plastic layer is applied on top of the membrane while the patch is still sticky. This creates a quadruple layer of protection on the walls. Then we install a Platon drainage board on the top. This protects the membrane during backfilling and also acts as an additional layer of protection against water.

We then check the existing weeping tile drainage. Necessary repairs or replacement is carried out. A filter sock is installed to clean fine particles from groundwater and ease the drainage process.

The last step in this process is backfilling. We start by filling clear gravel on top and around the weeping tile drainage. This helps to get a clear flow for drainage. The native soil is then poured back into the trench. We power tamp the soil every 6" -12" inches. This helps to keep the membranes locked in place and also helps to restore the original grading of the ground.

Now, a termination strip is attached to the top of the Platon drainage board to ensure that the strip does not separate from the board. The process is now complete. We now wash and sweep the repaired area. Now you have a completely waterproofed basement.

No More Leaky Basement After The GJ MacRae Treatment

Get a dry and leakproof basement and utilize your basement to its full potential. Your basement isn’t just a crawlspace; it can be so much more. With a dry basement, you have many options for how you want to use it. It’s the 21st century, and basements are no longer musty old rooms.

You’re just one call away from a dry basement. Pick up that phone and ring GJ MacRae, and we will be at your doorstep as soon as possible. Give us a call or fill out the form below and our team will inspect your basement situation and provide the ideal basement waterproofing solution. Basement Waterproofing in Oakville from the best basement waterproofing company in the city. Contact us at (905) 824-2557 or fill out the form below.


Schedule A Visit With Us Now!

After you fill out the form below, we will contact you as soon as possible for A FREE ESTIMATE. If you still have any questions, feel free to contact us anytime. We are 24/7 active!

Frequently Asked Questions

Waterproofing is the process of making an object or structure resistant to water penetration which involves applying various techniques, materials, and coatings to prevent water from entering or damaging the protected area. It is commonly employed in construction, particularly for buildings, roofs, basements, foundations, tunnels, and various types of infrastructure. Contact GJ MacRae for best basement waterproofing services in Oakville.

The cost to waterproof your basement depends on several factors, such as the size of your basement, the type of waterproofing method you choose, the extent of the damage, and your location. The average cost to waterproof a basement ranges from $2,000 to $10,000.

Yes, you can finish your basement after waterproofing it. And you should also work with experts from long term warranty.

Repairing cracks in your foundation can help prevent water intrusion and contribute to the waterproofing of your foundation, but it may not provide complete waterproofing on its own. Cracks in the foundation can be pathways for water to seep into the structure, leading to potential water damage and other issues. By repairing the cracks, you are sealing off those entry points and reducing the risk of water penetration.

The white chalky substance flaking off your basement walls is called efflorescence. It is not toxic but could indicate water problems in your basement. Efflorescence results from minerals in the concrete, mortar, or soil dissolving in water and then crystallizing on the wall’s surface when the water evaporates. It can look like a fluffy or powdery coating on the wall.

There is no absolute way to guarantee a dry basement all the time. Still, you can take steps like installing a proper drainage system, waterproofing, a sump pump, etc., to reduce the risk of moisture problems and flooding in your basement.

Some of the typical basement waterproofing issues that homeowners may face are Basement condensation, Foundation wall leaks, Basement floor cracks, and Masonry walls. So, get basement waterproofing from the experts in Oakville from GJ MacRae Foundation Repair.

Investing in a basement waterproofing system can provide you with many benefits, such as Preventing water damage, Enhancing indoor air quality, Creating a usable living space, Protecting your home foundation, Increasing property value, and Reducing energy costs.

Hydraulic cement is a type of cement that can set and harden quickly in the presence of water which is used to stop water and leaks in concrete and masonry structures, especially when submerged or exposed to water.

Yes, there is a warranty for the repairs made to waterproof your basement walls. We offer a Better-Than-Lifetime-Guarantee® for our waterproofing systems, which means that if you ever sell your house, the warranty will transfer to the new owner for free, and we will continue to service your system as long as the house stands. This gives you peace of mind that your basement walls will be protected for generations. Please contact us anytime if you have any questions or concerns about our warranty. As the best basement waterproofing company in Oakville, we are happy to help you.

Service Areas in Oakville

At the moment, we are serving our waterproofing services/projects throughout the Oakville region including Ancaster, Stoney Creek, Dundas, Albion Falls, and more. So don’t hesitate, give us a call and see how it goes!