
Since 1975, our basement waterproofing Oakville experts have been transforming basements into dry, leak-proof sanctuaries. Trust our top-notch solutions to protect your home from water damage and enjoy lasting peace of mind.
Every year during the rainy season, many homes in Oakville see leaky basements. Rainwater around the perimeter of the foundation walls can soak into the surrounding soil and enter basements through the cracks in the foundation wall. Mould and mildew flourish in a basement with damp walls, which can seriously harm our home’s health. Without a proper waterproofing defense, foundation walls can endure hydrostatic pressure, which causes more cracks in the basement walls and lets more water into the basement.
All of this leads to your basement becoming a damp, musty-smelling area. Also, your foundation walls can become badly weakened due to cracks in the concrete, which can add to the risk of further damage. If these issues are left unresolved, your basement can become structurally damaged.
That’s where we come in; GJ MacRae is the premier basement waterproofing, crack repair, and structural foundation repair specialist in Oakville, and we have been delivering dry, usable basement solutions since 1975!
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.
We have proudly served The GTA, Hamilton, Toronto, Etobicoke, Mississauga, 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 nearly 50 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 high-quality drainage solutions. GJ MacRae Foundation Repair is home to the highest quality basement waterproofing warranty. We guarantee to keep your structure in Oakville high and dry for years to come, and that’s a promise!
We’re experts with almost five decades of experience providing quality basement waterproofing services.
Servicing Toronto, Etobicoke, Mississauga, Oakville, Burlington, Milton, Hamilton and Georgetown since 1975!
We offer the highest quality foundation repair, basement waterproofing, and underpinning services.
Family owned and operated since 1975, robust liability insurance, fully licensed, insured, and bonded.
From waterproofing to sump pump installations, we have the solution to your foundation needs.
We take immense pride in delivering the highest quality workmanship available today in the GTA!
GJ MacRae Foundation Repair has waterproofed over 10,000+ basements since 1975! Our experience covers various eras of homes, from heritage to wartime bungalows to modern.
With the GJ MacRae process, you can rest assured that your basement will remain dry. We use the best products and basement waterproofing process to make your basement walls water-resistant.
With nearly five decades of experience in basement waterproofing in Oakville and surrounding areas, GJ MacRae is prepared for any challenge with our adaptable and personalized plans that fit your foundation repair needs.
GJ MacRae recommends the hand excavation process for basement waterproofing. This way, the landscape suffers much less damage and also allows tight-access excavations to take place.
We assess your basement waterproofing issues clearly and determine the best route forward through a precise, organized written quotation. Our quoting and repair process is competitively priced and clearly outlined.
We have earned thousands of positive feedback from our clients and are featured Oakville basement contractors on Homestars, Google Guaranteed, and HGTV. See for yourself what the GJ MacRae difference is all about!
Rob Fratric2025-05-31 Great job. Fast response to inquiries, job done fast and professionally. Put everything around the area back in place to the point where you wouldn't even know any work was done afterwards. Would 100% recommend calling them if you have a foundation repair issue. Luke Chiasson2025-04-18 Let's just say that there aren't many companies of this calibre around these days. We've been dealing with GJ MacRae for the last seven years for everything sump pump related. Seven years ago the fine folks at GJ MacRae came in and replaced our existing sump with a modern unit complete with a marine battery backup and secondary pump. We have a ton of ground water around here and when it rains our sump fires non stop. Everything has been perfect and when it came time to service our system seven years in, GJ MacRae was all over it. Exceptional service, communication price and product. It's rare to see all 3 these days. Thanks for everything Gavin. Jeff S2025-03-23 Gavin of GJ MacRae and his team did an amazing, quick and clean installation of a sump pump in our basement! I was very impressed with every aspect, from communication, to timing, to the finished product! Absolutely would recommend them! Thanks Gavin! Dave Frei2025-03-08 When you are doing a large scale project like ours (basement dig, under pin, beam replacement and waterproofing), you need an expert team like GJ MacRae. They have the experience and the know-how to give you peace of mind that the job is being done right the first time. Gavin and his team showed up on time every day with a plan and executed it with precision! These guys are the best in the business! The Impolite Canuck2024-10-27 GJ MacRae did an amazing job on my cracked foundation. Highly recommend. Guys were professional, punctual, courteous, informative and left zero mess. They even fixed some rod leaks I discovered after the second deluge last August at no extra charge. Peggy Smith2024-08-25 Very happy with a recent job completed by GJ MacRae Foundation Repair at our home. The service was excellent, the owner and working crew were very courteous and knowledgeable about their trade. They completed the work on time and on budget and they did a great job! I would highly recommend this company for any foundation/basement you may have. Brian Klodt2024-07-15 Used GJ MacRae for a foundation repair at our heritage house built circa 1894. The experience was positive from the quoting through 3 days execution of the work. Was done on time and on budget with a hard working crew who were experienced and left behind a strong and waterproof block wall. Gavin the owner was a pleasure to work with. Would use them again if ever needed. Lisa Kemp2024-07-15 G J MacRae installed a sump pump in my house to help with a water problem in my basement. The workers were professional and knowledgeable and took care with the quality of their work. They did an excellent job. I’m very happy with the result and would recommend them. Kyle Yamamura2024-06-21 Highly recommend the team at GJ MacRae. Excellent quality of work and customer service - which is hard to find these days. The waterproofing of my basement was fast, clean and effective - all at a very reasonable price. Thank you!
GJ MacRae is the leading name for Basement Waterproofing in Oakville. We provide a wide range of basement waterproofing and foundation repair services. Our company started 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.
Our services cover all aspects, from exterior and interior basement waterproofing solutions to underpinning, crack repair, and beyond. Our skilled, expert workmanship produces guaranteed basement waterproofing solutions that last the test of time.
Say goodbye to leaky basements because we specialize in basement waterproofing in Toronto for below-grade concrete blocks, poured concrete, field stone, and rubble stone foundation walls. With nearly 50 years of service, getting a dry basement backed by the most reliable warranty in the GTA is just a phone call away.
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 injection methods simply not work? Trust the experts and see why GJ MacRae carries the most reliable foundation crack repair warranty in the business.
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 benefits of our extensive expertise.
Basement windows are a great natural light source and can act as a designated fire escape, but what happens when window wells deteriorate, clog, and leak? Our hand-excavated exterior window well repair solutions are permanent and allow for guaranteed unimpeded drainage all year long.
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, basin, and battery backup system are well maintained and ready for the next significant rain or thaw.
We also specialize in structural foundation shoring, concrete footing and replacement, concrete foundation wall reinforcement and replacement, structural underpinning installations, and all phases of below-grade concrete foundation repair, reinforcement, and rebuilding.
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.
GJ MacRae pioneered 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 for less cost than a standard second-story addition!
When your foundation walls begin to show signs of cracking or bowing, it’s generally an indication of severe exterior lateral pressure from roots, hydrostatics, or poorly draining soil. Click below to learn more about our complete carbon fiber foundation reinforcement applications.
First, we isolate all foundation cracks in the basement foundation walls. We set up tarps and begin excavations to the footing of the basement foundation wall (typically 8ft deep).
Then, 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, we move on to the next step in the repair.
We then apply a quick-drying primer to the concrete foundation walls. This primer is crucial to provide extra adhesion to the walls for the next steps in the waterproofing process.
A rubberized membrane is then applied to the entire repair area using a trowel. This rubberized membrane does not allow any liquid, air, or moisture. 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 rubberized membrane is applied on top of the fiberglass mesh (this creates a double coat and gives extra protection).
A 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 drainage board on the top. This protects the membrane during backfilling and acts as an additional protection against water.
We then check the existing weeping tile system and ensure necessary repairs or replacements are carried out. A filter sock is installed to clean fine particles from groundwater to protect the weeping tile system.
The last step in this process is backfilling. We start by surrounding the weeping tile system with 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, which helps keep the membranes locked in place and also helps to restore the original grading of the ground.
Finally, a termination strip is attached to the top of the drainage board to ensure that the strip does not separate from the board. Then, we clean up the worksite and removed all debris. The process is now complete.
RECENT PROJECT PHOTOS
At GJ MacRae, we take pride in extending our services across the GTA to meet our valued customers’ unique needs, and our dedicated team is committed to delivering top-notch solutions all year long. Our expansive service areas are a testament to our unwavering commitment to the highest quality foundation repair services and customer satisfaction in the GTA.
Fill out our request form and we will contact you as soon as possible for a free foundation repair consultation!
Your basement has so much potential. Don’t let it go to waste because of leaks, cracks, or dampness. Transform your wet and musty basement into a dry, cozy space you can love. Whether you fancy a game room, a gym, or a hangout spot, you can transform your leaking basement into your dream space!
Call GJ MacRae Foundation Repair today; you’re only one call away from a dry basement! We’ll check out your basement situation and give you the ideal waterproofing solution. Get the best basement waterproofing in Oakville from the most experienced team in the GTA. Call us at (905) 824-2557
GJ MacRae Foundation Repair has been the industry leader for reliable basement waterproofing in the Oakville, Ontario Since 1975. Nearly five decades of experience inform our proven multi-stage repair process based on below-grade drainage considerations that allow us to waterproof concrete blocks, poured walls, and stone rubble foundation walls properly for the long term. Our Oakville wet basement solutions for leaking foundation cracks include using bitumen-based barrier membranes and high-efficiency weeping tile systems, which give us the edge in reliability and allow for the most robust foundation repair warranty available today in the GTA. Experience the GJ MacRae difference for year-round basement leak repairs Toronto, Mississauga, Burlington, Hamilton, Milton, and Georgetown. If you spot foundation walls, leaky foundations, or any other basement waterproofing issues in your house, reach out and call us today at (905) 824-2557.
We service the Oakville area including Burlington, Hamilton, Milton, Mississauga, Toronto, and more.
Serving Toronto and the GTA Since 1975