Best Basement waterproofing services in Mississauga
Delivering dry and leak-proof basements with our quality basement waterproofing services in Mississauga since 1975

Delivering dry and leak-proof basements with our quality basement waterproofing services in Mississauga since 1975
FEATURED IN THE TORONTO STAR AND HGTV:
FEATURED IN THE STAR AND HGTV
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The Leaky Basement Problem in Mississauga
The city of Mississauga receives its fair share of rain throughout the year, and most basements are not ready for it. Many homes in Mississauga have very poor and/or no basement waterproofing systems installed on their foundation walls. And this can turn into a nightmare during heavy rainfall. Due to rain or thaw, water puddles begin to form around your house, and can be soaked into the soil. Since there is no barrier, the water in the ground begins to seep through concrete basement walls and cause water damage. In most cases, basement walls are damaged due to water seepage and this can start growing mold and mildew, which can become a severe health hazard.
On top of that, hydrostatic pressure from the soil starts to make cracks in your basement walls, weakening your home’s foundation. Your wet basement turns into a musty-smelling, mold-infested, flooded room that can quickly turn into a liability. All this can be avoided by waterproofing your basement, and GJ MacRae, the best Mississauga basement waterproofing company, is always at your service.

GJ MacRae Foundation Repair:
Your Basement Waterproofing Solution in Mississauga
When it comes to basement waterproofing in Mississauga, GJ MacRae is the name that comes to everyone’s mind. And that is no coincidence. We have been providing basement waterproofing in Mississauga for over 48 years and have served 10,000+ customers to date. We are a family-owned business, and we highly value our customer’s satisfaction and devote ourselves to providing quality work. We do the right job at the very first time.
We have dealt with numerous difficult basements over the years and our highly skilled staff has the solution. When our highly experienced staff combine with top-of-the-line equipment, the result is QUALITY. Our work is backed up by a transferable 15-year warranty, making us one of the most trusted Mississauga basement waterproofing companies.
The GJ MacRae Solution: Basement Waterproofing Mississauga
At the moment, we have been proudly serving The GTA: Hamilton, Toronto, Etobicoke, Mississauga, Oakville, Burlington, Milton, Georgetown, and surrounding areas since 1975. We specialize in basement waterproofing in Mississauga for below-grade concrete blocks, poured concrete, field stone, and rubble stone foundation walls.
With 10,000+ satisfied customers to date in Mississauga and over 40 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 drainage solutions, etc.
GJ MacRae Foundation Repair is the home of the true, time-tested 15-year transferable warranty. We guarantee to keep your structure here in Mississauga high and dry for years to come. We also issue a true guarantee from Home and Garden Television (HGTV) featured contractor and The Homestars: Best of Award for Customer Service.
WE DON’T SELL A PRODUCT, WE SELL EXPERTISE

Decades of Experience
Trust the experts with almost five decades of experience in providing basement waterproofing services.

Serving the GTA
We have been Servicing Toronto, Etobicoke, Mississauga, Oakville, Burlington, Milton, Hamilton and Georgetown.

Outstanding Service
Home of the original transferable warranty. Licensed specialists in basement waterproofing and underpinning.

Completely Family Owned
Family owned and operated since 1975. Robust liability insurance, WHMIS trained, fully licensed, insured and bonded.

Wide Range of Service
From foundation repair to sump pump installation, we have a solution for all your basement waterproofing needs.

Quality Workmanship
We take pride in delivering the highest quality workmanship, ensuring your basement stays dry for a lifetime
Why is GJ MacRae Your Ideal Choice For Basement Waterproofing In Mississauga?
Successfully Completed Over 10,000+ Basement Waterproofing Projects
Since its establishment, GJ MacRae Foundation Repair has completed more than 10,000+ basement waterproofing projects. The number speaks for itself. To be trusted by such a number of customers is a testament to our quality service and workmanship.
Guaranteed Dry Basements
When we do a job, it's always a job well done. We can guarantee a permanently dry basement. Get rid of leaky basements after the special GJ MacRae treatment. Tailored basement waterproofing solutions that fit your basement needs to create a lasting dry impact.
Five Decades of Experience
GJ MacRae has almost 50 years of experience in basement waterproofing in Mississauga and surrounding areas. With such vast experience, we are ready for any kind of basement waterproofing project with our custom-tailored basement waterproofing plans that suit your basement needs.
Hand Excavation Rather Than Machine
We prefer using hand excavation rather than a machine when possible to significantly reduce the damage to your property. We practice residential low-impact hand excavation to protect your property's aesthetic and effortlessly revert the ground to its original state.
Documented Waterproofing Quote
Our team properly analyses your basement situation, understanding the severity and providing you with a written quote for your basement waterproofing. We stay competitive with our pricing and are always transparent with our charges. A written quotation is provided before we begin the waterproofing.
Mississauga Basement Waterproofing Reviews
With over 10,000+ projects completed to date, we have received numerous excellent reviews and client testimonials in leading review sites like Homestars, Google and and HGTV. Don't just take our word for it; see what our customers have to say about us.
Testimonials
Industry-leading GJ MacRae Waterproofing Services
GJ MacRae Foundation Repair is a standout name in the basement waterproofing and foundation repair industry. We’ve been in business for nearly 50 years, and we’ve successfully serviced more than 10,000+ happy clients in Mississauga and established a strong reputation. Thanks to our experienced staff and our use of excellent quality products, we have delivered results of the highest quality.
For all sorts of houses, old or new, we provide a complete variety of basement waterproofing services, including interior and exterior basement waterproofing, underpinning, crack repair, and much more. Our qualified specialists carry out our customized basement waterproofing solutions that stand the test of time.

Basement Waterproofing Mississauga
We specialize in basement waterproofing services for below-grade concrete blocks, poured concrete, field stone, and rubble stone foundation walls. With over 40 years of service in the GTA and backed by the most reliable warranty in the business, see what the GJ MacRae difference is all about.

Foundation Crack Repair Mississauga
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 repair methods simply not work? Trust the experts and see why GJ MacRae Foundation Repair carries the business's most reliable crack repair warranty.

Weeping Tile Systems Mississauga
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 benefit of our expertise!

Sump Pumps Mississauga
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, sump basin, and battery backup system are well maintained and ready for the next significant rain or thaw.

Structural Wall Repairs Mississauga
Is your home's structure moving, and is this movement accelerating as the years pass? The sooner the integrity of your foundation is restored, the better. We have a full line of time-tested, certified structural foundation repair solutions tailored to your scope and budget.

Crumbling Foundations Mississauga
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.

Basement Underpinning Mississauga
GJ MacRae are pioneers of 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, all for less than a standard second-story addition.

Structural Carbon Fiber Mississauga
When your foundation walls begin to show signs of cracking or bowing, it generally indicates severe exterior lateral pressure from tree roots, hydrostatics, or poorly draining soil. Click here to learn more about our full carbon fiber foundation reinforcement application line.

Window Wells Mississauga
Basement windows are a great source of natural light. They can also act as a designated fire escape, but what happens when window wells begin to deteriorate, clog and leak? Our hand-excavated exterior window well repair solutions are permanent and allow for guaranteed unimpeded drainage all year long.
The GJ MacRae Solution: Basement Waterproofing Mississauga
The very first step is to establish the location of the cracks in the foundation walls. We set up tarps and dig all the way down to the footings to not miss any of the cracks.
Next, we clean the exposed walls with a wire brush. We then chisel out the cracks, put hydraulic cement in the cracks using a trowel, and let the cement set.
After the hydraulic cement is set, we apply a quick-drying primer to the foundation walls. The primer helps provide aggressive adhesion to the walls, which is needed in subsequent steps in the waterproofing process.
A special Hydroshield rubberized membrane is applied to the entire wall using a trowel. This rubberized membrane is impermeable to air, moisture, and liquid water. A layer of fiberglass mesh is also applied to provide flexibility to the membrane while keeping its integrity. Another layer of Hydroshield is then applied again, creating a double coat and extra protection. This will guarantee that no water can pass through.
We apply a layer of thick plastic in the membranes while the patch is still sticky. After that, we install a Platon drainage board on top of the quadruple-layered membrane. It acts as an additional layer preventing water from getting to the foundation wall while protecting the membrane behind it during the backfilling.
The existing weeping tile drainage is replaced. A new weeping tile system is installed and is surrounded by a filter sock that helps to clean fine particles from groundwater and eases the drainage process.
Now we start the backfilling process. We first like to fill the top and around the weeping tile system with clear gravel to ensure consistent and rapid drainage. After that, the native soil is installed back into the excavation. Power tamping the soil every 6" -12" inches ensures that the drainage is consistent and that the rubberized membrane and waterproofing system are locked into place, restoring the original grade within the repaired areas.
A termination strip is attached to the top of the Platon drainage board to ensure that the strip does not separate from the board. After completion, everything within the repaired area is washed and swept.
OUR PROJECTS IN MISSISSAUGA
Get Rid Of That Leaky Basement Today
Your Basement Waterproofing Solution in Mississauga
Give that much-needed transformation to your basement today. Transform your wet, leaky basement into a dry basement that is useful. Utilize your basement space to its full potential. Make your basement into your game room, gym, or hangout space because a leaky basement is of no use!
You’re just one call away from a dry basement. Pick up the phone and call GJ MacRae, and we will be at your doorstep as soon as possible. Give us a call or fill out the form below and our team will inspect your basement situation and provide the ideal basement waterproofing solution. Basement Waterproofing in Mississauga from the best basement waterproofing company in the city. Contact us at (905) 824-2557 or fill out the form below.

Schedule A Visit With Us Now!
- Phone : (905) 824-2557
- Email: hello@wetbasements.com
- Address: GJ MacRae Foundation Repair 470 Winston Churchill Blvd Oakville, Ontario L6J-7X2
Frequently Asked Questions
Service Areas in Mississauga
At the moment, we are serving our waterproofing services/projects throughout the Mississauga region including Ancaster, Stoney Creek, Dundas, Albion Falls, and more. So don’t hesitate, give us a call and see how it goes!