GJ MacRae Foundation Repair

The Original Wetbasements Experts – Since 1975

Carbon Fiber Reinforcement 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.

Our Services Are Trusted By

Carbon Fiber Reinforcement: Stabilize Your Foundation

Your foundation walls carry the weight of your entire house, and after years of use, your foundation walls can start to show signs of stress. Tree roots or hydrostatic pressure can cause these foundation walls to crack. These structural issues must be addressed as soon as possible to avoid excessive repair costs and protect the foundation from further damage.

A very effective way to address this situation is to use carbon fiber to help strengthen the walls and prevent them from cracking or bowing further.

carbon fiber diagram hq

Carbon Fiber Reinforcement Experts in Toronto

GJ MacRae is a complete basement waterproofing and foundation repair company in Toronto. We provide structural foundation repair services to keep your basement foundation strong and prevent further damage to the foundation walls. Our complete basement waterproofing and structural foundation repair process includes making necessary repairs to the foundation walls and installing a waterproofing system to deliver a dry and robust basement foundation.

We use the carbon fiber reinforcement technique to strengthen and support the existing foundation walls. This ensures that your foundation walls do not endure further damage from hydrostatic pressure, and carbon fiber prevents cracks and bowing of your walls. From almost five decades of industry experience, we know how to create a strong foundation free of cracks. If you require foundation repair or foundation reinforcement, call us today!

Benefits of Using Carbon Fiber Strapping

Carbon fiber has one of the highest tensile strengths known to exist, and carbon fiber is corrosion-resistant. It also provides a much higher thermal capacity than traditional materials, making it a superior repair choice in some applications. Flexible carbon fiber wrap can be used over any shape or size. Also, the process is quick and far less obtrusive than a complete foundation rebuild.

After the repair, the overall available space in the basement is almost the same, and the final finish is flat and smooth and can be easily painted over. Carbon fiber requires little maintenance because it is nearly ten times stronger than steel and is non-corrosive. Plus, no heavy equipment is needed during the repair process.

In conclusion, using carbon fiber to repair your foundation is a low-cost process that provides excellent strength and durability to the foundation walls. It helps avoid further cracks in the wall and is nearly invisible after completion. It is almost 1/4th of an inch thick and can be painted over. Since it needs little to no maintenance, it is one of the easiest and most effective solutions for fixing foundation wall cracks.

6 Step Repair Process:


Scope of Work

The first step is understanding what scale and configuration of carbon fiber reinforcement your foundation requires. 



Choosing an experienced structural engineer in your area with specific carbon fiber product experience is recommended. 


The Correct Materials

Choosing the right Carbon fiber product and configuration for your foundation repair project is critical.


Cost Vs Workmanship

With dozens of contractors out there, be sure you are getting what you pay for. Beware of the recently saturated marketplace.



Maintain your eavestroughs and downspouts year round and ensure your grade is positively pitched away from foundation walls.


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.

Carbon Fiber: A Straightforward Fix For Your Foundation Cracks

Rebuilding your foundation walls can be expensive and complex, but fixing your foundation cracks with Carbon fiber may be a great alternative. Carbon fiber reinforcement is a straightforward, cost-effective process supporting your basement walls.

If you are experiencing foundation cracks, make sure to address them quickly. Contact GJ MacRae for carbon fiber reinforcement services in Toronto. Give us a call or fill out the form below, and our team will inspect the foundation cracks and provide a solution for them. 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?



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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, and carbon fiber strapping may be an alternative to a complete foundation wall rebuild.

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.