GJ MacRae Foundation Repair is an award-winning, second generation family-run Basement Waterproofing company based in Oakville and serving the Greater Toronto Area since 1975.
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.
RECENT PROJECT PHOTOS
Posted on Google![]()
A D50 days agoTrustindex verifies that the original source of the review is Google.
Going thru some old files for my rental property, I discovered a contract which Gavin had signed in Jan 2007 to repair a foundation leak in my basement. This leak had been 'fixed' multiple times by others using epoxy. Gavin explained that the only sure way to fix the leak once and for all, was to dig down to the foundation from the outside to seal the cracks, plus provide a waterproof barrier against the wall. The work was done excellently and came with a 15 year warranty. It has been 19 years and no leaks have occurred. If you want a basement leak fixed right the first time, then contact GJ MacRae Foundation Repair. Highly recommended.Posted on Google![]()
Bob Fuller52 days agoTrustindex verifies that the original source of the review is Google.
Dean and his team did a highly professional repair to our foundation. We needed expediency and Dean ensured we were taken care of.Posted on Google![]()
Diane Prest137 days agoTrustindex verifies that the original source of the review is Google.
Today Gavin MacRae did thorough inspection of 2 sump pumps & battery backups which he installed in 2018 - both systems still performing well. Prior to 2018 MacRae Foundation did extensive foundation/waterproofing for us - quality of workmanship excellent. Without hesitation, strongly recommend MacRae Foundation.Posted on Google![]()
Liza McIntyre201 days agoTrustindex verifies that the original source of the review is Google.
GJ MacRae provided us with interior and exterior waterproofing, as well as the installation of a sump pump. From start to finish , they were professional, courteous, on time and budget. Their customer service is exceptional and I’ve recommended their services to friends and neighbours without hesitation. L. McIntyrePosted on Google![]()
chad youden244 days agoTrustindex verifies that the original source of the review is Google.
I can’t say enough about GJ macrae. This company truly does go above and beyond for their clients. Extremely professional and clean work, done properly!! I will not hesitate to tell all my family and friends if they ever have a foundation leak or wet basement to call this company. Thank you again GJ macrae for helping me and my family!Posted on Google![]()
Gabhan Chalmers322 days agoTrustindex verifies that the original source of the review is Google.
We had a difficult project requiring excavation, waterproofing, and installing a sump pump on a 130 year old house, and GJ MacRae did an amazing and very thorough job. They went above and beyond to repair the foundation that had started to deteriorate as well. Very professional and high quality work. I'd definitely recommend this company!Posted on Google![]()
Rob Fratric468 days agoTrustindex verifies that the original source of the review is Google.
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.Posted on Google![]()
LC511 days agoTrustindex verifies that the original source of the review is Google.
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.Posted on Google![]()
Jeff S537 days agoTrustindex verifies that the original source of the review is Google.
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!Posted on Google![]()
Dave Frei553 days agoTrustindex verifies that the original source of the review is Google.
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!Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
GJ MacRae Foundation Repair has been the industry leader for reliable basement waterproofing in the Greater Toronto Area 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 repair 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 in Toronto, Oakville, 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’re honored to provide these resources to help you on your journey, and we know reputations are hard to build and easy to lose. That’s why our business is built around two simple promises:
Honesty and Transparency.
We genuinely want each step of your journey (from the very first Google search to a leak-free basement) to be positive!
Serving Toronto and the GTA Since 1975