GJ MacRae Foundation Repair

The Original Wetbasements Experts – Since 1975

Crumbling Foundation Repair Services in Toronto

GJ MacRae Foundation Repair is an award-winning second generation family-run Basement Waterproofing, Foundation Repair, and Underpinning company serving the Greater Toronto Area.

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Crumbling Foundations: Repair Before It's Too Late

So you bought a beautiful century house, and you love it. You love the style; you love the design, the massive wood-burning fireplace, the high ceilings, everything is perfect! But you go to the basement of your old century home, which is made up of stones to give that vintage look. The house’s basement is old, and the previous owner had not taken much time to care for it. The whole basement floods every rainy season, and many cracks are all over the basement walls. The joints in the stone have started to wear out, and water leaks from them. It’s an old home, and no waterproofing membranes are used in the basement. The hydrostatic pressure takes a toll on these walls, causing more and more cracks. The crumbling basement is on the verge of collapse, and you want to act fast. The consequences of not working quickly on the repairs can be severe, and the entire house’s structural integrity is at stake.

Acting fast in these situations saves you from accidents and prevents the expense of thousands of dollars in major repairs. You want to repair your basement but also restore its original appearance. What do you do, and who do you call? That’s where GJ MacRae Foundation Repair comes in.

Crumbling Foundation Repair and Restoration Experts in Toronto

crumbling foundations

GJ MacRae is a complete basement waterproofing and foundation repair company in Toronto. We are Toronto’s highest-rated repair company for crumbling foundation and basement restoration. We know the importance of restoring the original look and ensuring that the foundation is strong at the same time. Over the decades, we have carried out hundreds of century-home crumbling foundation repair and restoration projects, successfully restoring the original look and strengthening the foundation. We like to combine multiple methods to provide that desired finish to your basement. We perform historical restoration with the help of the stones on the site and natural hydraulic lime mortar. This lime mortar helps restore the original look and provides much-needed elasticity. We refrain from using modern-day Portland mixtures because they are very hard and can cause the fieldstones in between the mortars to crack. These kinds of crumbling foundation restoration need much expertise, and the inability to use the correct products can lead to the foundation walls’ failure in just ten years rather than lasting indefinitely.

We are just the right team for your crumbling foundation repair. Our skilled technicians have vast experience working on century homes and restoring that original look. We embrace the strength of modernity while still being rooted in the beauty of vintage looks. We know what to use, how to use it, and when to deliver that accurate result. You bought that century home because its design was the first thing you fell in love with, and we will restore that for you.

Our Proven Foundation Repair Process



We thoroughly examine damaged foundation walls and identify cracks and weaknesses.



We carefully excavate down to the footings by hand to ensure a comprehensive repair.


Foundation Replacement

Our team expertly removes and fully replaces the old damaged footing and foundation wall.


Drainage Enhancement

We waterproof and install a new weeping tile system to the new foundation wall, ensuring adequate water management around your home’s foundation.

Repair Process: Crumbing Foundations

We like to fuse the old approach with modern waterproofing methods to give more life to your century homes. These century homes weren’t just about style. They lasted so long because they were meant to stay for a long time, and they were strong. Proper restoration from a crumbling foundation expert like GJ MacRae can go a long way, and your beautiful home can last another century.


Why Choose GJ MacRae?

inside basement waterproofing

Protect Your Foundation


Some Kind Words From Our Customers

Maria Aleman
Maria Aleman
Dean, came out right away after we noticed water in our basement and provided an estimate. Communication with him was easy and he answered all my questions. Work was done within the week. I had a great experience and will recommend to others.
Jakob Backstrom
Jakob Backstrom
Gavin and his team did a great job. Right from quoting the job I had confidence they can do the job well and had the experience. Great videos on their website really help you understand what’s involved in foundation repair.
Job was done in 2 days which I was amazed it could be done that quickly! That’s a lot of pails of concrete and rock that had to be shuttled in and out of the house! The guys were all very friendly and let me know everything that was being done and answered all my questions! The bowed wall looks solidly supported now with carbon fibre strapping and the water found beneath the floor is now being safely routed through newly installed Plastic Weeper to our sump. We now have peace of mind that we can finish the basement with no leaks or crumbling walls! Thankyou Gavin, Maggi, Ricardo and Jay!
Debra Gold
Debra Gold
We would like to express our gratitude to G.J. McRae for the exceptional job they did in restoring our peace of mind. Every time it rained or snowed, our basement would leak, causing us great distress. However, the crew from G.J. McRae arrived promptly, worked diligently, and efficiently resolved the issue. They even left our backyard in excellent condition, cleaning up after themselves. We cannot thank you enough for the outstanding service and for making us feel confident that the problem is now completely resolved. We are so happy to be able to not worry about this any longer.
Tricia LaDouceur
Tricia LaDouceur
Workers were on time and professional. Quality and value for money. My only issue was the concrete poured was a little uneven causing a small lip near the drain. We managed to smooth it out. Would highly recommend GJ MacRae Foundation Repair.
John Prostran
John Prostran
Very happy with the work done by the GJ Macrae team. Recommend them to anyone for the quality of their work and the amazing warranty, that provides a piece of mind, that they have.
Jane Ingman
Jane Ingman
Everything went smoothly with the work we had down by GJ MacRae. Our issues included masonry stair repair, foundation cracks and parging that badly needed replacement. The resulting process was a look that exceeded how the house looked when it was first built. The quoting process and communication with Dean was very professional and timely. The onsite crew was very tidy and quick. I would not hesitate to recommend!
Jay Murray
Jay Murray
Our window well was backing up. The crew came in hand dug down over 8 feet. They put in proper drainage and moisture protective membrane the area. Filled everything back in and made it look better than it was. 100% recommend using them again. Thanks you for all the work
John T
John T
Gavin and his team were able to sort out a couple of VERY strange basement leaks after a renovation by others. Their detective work took into account the odd symptoms and they were able to resolve the issues permanently at a reasonable price. The cleanup afterwards was excellent – an important feature for us – as it demonstrates the overall workmanship. You may need to wait a fair amount of time for a response to emails if your issue is non-urgent / small job.

Add Life To Your House: Crumbling Foundation Repair

We all have a deep attachment to our homes, where we spend most of our lives, and seeing them crumble down is a hard feeling. However, timely repairs and maintenance can provide additional life to your beloved home. The foundation is the base of your home, keeping your entire house in place. Maintaining the structural integrity of your house is vital; for that, a strong foundation is necessary.

If you have an old home with crumbling foundations, make sure to give us a call. Our team will inspect your basement situation and provide the ideal solution. Feel free to contact us at (905) 824-2557 or complete the form below.


Download Our Free eBook

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!

gjmacrae ebook
LOCAL repairs near you

What Does quality Foundation Repair Look Like?



Our Service Areas

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.


Schedule a Free Consultation Today

Fill out our request form and we will contact you as soon as possible for a free foundation repair consultation!

Frequently Asked Questions

Foundation replacement involves removing and replacing a concrete foundation wall due to structural issues or instability.

Cracking or shifting in the structure or persistent water infiltration are common signs that your foundation wall may need repair or replacement.

Foundation replacement is a risky and complex task requiring expertise. Hiring professionals ensures that the job is done accurately and efficiently.

The cost and duration of foundation replacement varies based on the extent of damage and the size of the foundation wall replacement.

A solid foundation structure is essential to keeping your home safe and strong long term.

Expert Waterproofing Services for Your Home

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.

Quality Foundation Repair Done Right.