GJ MacRae Foundation Repair is an award-winning, second generation family-run Basement Waterproofing company based in Toronto and serving the Greater Toronto Area since 1975.
GJ MacRae is a second-generation, family-run, full-service basement foundation repair and waterproofing company serving the Greater Toronto Area since 1975. After nearly 50 years in business, we have established ourselves as the premier basement waterproofing company in the GTA. We will work with you to understand your project needs and find the best solution for damaged foundation walls or leaking basements.
If you’re from the Greater Toronto Area and need exceptional basement waterproofing services, count on us for leading foundation repair in Toronto. With nearly five decades of experience, we specialize in foundation repair and interior basement waterproofing, ensuring the long-term security of your home’s concrete foundation walls. Our reliable exterior and interior waterproofing solutions come with the best warranty in the business and are offered throughout the GTA, including Oakville, Mississauga, Burlington, Hamilton, Milton, and Georgetown. Operating year-round, even in the winter, we provide timely basement leak repair services to safeguard your home from sudden leaks or foundation damages. Our experience of nearly 50 years gives us confidence in our ability to deliver a dry, usable basement to protect your home’s foundation for the long run, so contact us today for a free estimate.
During the early years when residential basements were mainly used for coal and food storage (and the occasional hogmánay), we were one of the first contractors in the Toronto area to realize the incredible benefits of a fully dry, entirely usable basement.
1970 – 1975
1975 – 1985
1985 – 1995
1995 – 2000
2000 – 2005
2005 – Present
Nearly 50 years have passed and the mighty oak still grows! GJ MacRae continues to set the bar in all phases of below grade waterproofing, structural foundation repair, underpinning and heritage restoration.
RECENT PROJECT PHOTOS
Years of consistent service and warranty excellence have allowed GJ MacRae Foundation Repair to stand the test of time. With over 10,000+ warranties issued to date, no other company in the GTA is more qualified to complete your foundation repair project than we are.
GJ MacRae is one of the few foundation repair companies in the GTA that complete all phases of waterproofing, underpinning, and structural foundation repairs.
Residential hand excavation is our specialty. We provide a low-impact hand excavation method to return your grounds to their original state.
Since 1975, we have been an active family owned and operated foundation repair, basement waterproofing, and underpinning company, and our reliability in the industry is widely recognized.
GJ MacRae sets the bar high for attention to detail. Our team goes above and beyond to ensure precision in every aspect of our work. Trust us to deliver unparalleled quality and expertise that exceeds your expectations.
We’re not general contractors, drain contractors, plumbers, or landscapers. Foundation repair is all we do, period. Let our experience and expertise protect you and your home long-term.
Surpassing 10,000+ issued warranties and spanning nearly half a century, no other foundation repair or basement waterproofing company in the GTA has been doing it better for longer.
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 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 cracked 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