Foundation Repair in Toronto
Foundation Repair Services in Toronto and the GTA
Experience professional foundation repair services in Toronto and GTA with Aquatech Waterproofing. Trust our expert team to diagnose, repair, and reinforce your property for a stable and secure foundation.
A crack in your foundation is never just cosmetic. Even a hairline crack can widen over time as freeze-thaw cycles, hydrostatic pressure, and soil movement work against your home’s structure: and the longer it goes unaddressed, the more expensive the eventual fix becomes. That’s why every foundation repair we complete starts with a proper diagnosis, not a guess: is this crack structural or non-structural? Is water actively coming through, or is it a dry, stable crack that just needs monitoring? The answer changes everything about the right repair method.
With over 30 years of experience solving foundation problems across Toronto and the GTA, Aquatech Waterproofing has seen nearly every type of foundation issue a home can develop, from simple hairline cracks to full structural settlement requiring underpinning. Every repair comes backed by a lifetime warranty, so you’re not just paying for a fix, you’re paying for one that lasts.
How a Foundation Crack Affects the Rest of Your Home
A foundation crack rarely stays contained to the wall it’s in. As it widens, water finds its way through: leading to damp basement walls, a musty smell that won’t go away, and the mold growth that follows. Structural movement shows up elsewhere too: doors and windows that stick, floors that feel slightly uneven, hairline cracks spreading up into drywall or ceilings in rooms directly above.
That’s why we never quote a fix before understanding the cause. Is the crack structural or non-structural? Is water actively coming through, or is it dry and stable? Was it caused by soil settlement, poor drainage, a plumbing leak, or something else? Each answer points to a different repair method, and using the wrong one means paying for a fix that doesn’t actually solve the problem.
Interior Signs of Foundation Problems
Inside the house, foundation problems tend to show up in ways that are easy to blame on something else: a door that suddenly sticks, a floor that feels slightly off.
Uneven or sloping floors can point to foundation settlement below, while doors and windows that used to open easily but now catch or won’t close properly often mean the frame around them has shifted with the foundation.
Bowed or leaning basement walls are a sign of hydrostatic pressure building up faster than the foundation can handle, and cracked drywall or ceilings that trace in a pattern back toward a specific wall or corner often point to a structural cause, not just settling paint. If several of these sound familiar, it’s worth getting a professional assessment before guessing at the cause yourself.
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Exterior Signs of Foundation Problems
Exterior Warning Signs:
- Visible Cracks in Walls or Brickwork, Hairline or wider cracks in foundation walls, floors, or exterior brick often mean the foundation is already under stress.
- Wall Rotation or Leaning, If a wall looks like it’s tilting rather than sitting flat, the foundation may not be providing the support it should.
- Gaps Around Doors and Windows, As a foundation shifts unevenly, the frames around garage doors, windows, and walls can pull apart from their original position.
- Cracked or Shifting Brickwork, Brick cracks often develop as the foundation beneath settles or moves, even when the movement itself isn’t visible.
Aquatech, Trusted for Over 30 Years
How To Minimize The Risk Of Foundation Cracks
To minimize the risk of foundation cracks in your Toronto house, there are several preventative measures you can take:
01
Proper Drainage
Ensure your property has adequate drainage systems in place, including downspouts, gutters, and proper grading. This helps divert water away from the foundation and prevents excessive moisture accumulation.
02
Consistent Moisture Levels
Avoid excessive drying or saturation of the soil around your foundation. Consistently monitor and maintain moisture levels to prevent soil shrinkage or expansion, which can stress the foundation.
03
Tree and Shrub Control
Plant trees and shrubs at a safe distance from your foundation to prevent their roots from exerting pressure or causing soil displacement.
04
Regular Inspections
Conduct routine inspections of your foundation for any signs of cracks, shifts, or damage. Early detection allows for timely repairs and helps prevent further deterioration.
05
Proper Construction Techniques
If you’re building a new structure, ensure proper construction techniques are followed, including adequate reinforcement and proper foundation design.
06
Seasonal Grading Checks
Toronto’s freeze-thaw cycles shift soil every year, which can quietly change the grading around your foundation over time. A quick check each spring catches drainage problems before they become cracks.
By implementing these preventative measures, you can significantly reduce the likelihood of foundation cracks and maintain the structural integrity of your property.
What Happens If Foundation Problems Go Unaddressed?
Water Seepage Through Cracks
Puddles or damp spots on your basement floor are a sign water is already finding its way through foundation cracks. See our guide on identifying the source of a flooded basement before it gets worse.
Leaking at the Top of Basement Walls
Water seeping from the top of basement walls often points to poor grading, overflowing gutters, or foundation stress from above, not just the wall itself.
Mold and Mildew Growth
Moisture from an unaddressed foundation crack creates the damp conditions mold needs to grow, affecting both your basement and your family’s health.
Widening Cracks Over Time
A hairline crack rarely stays hairline. Freeze-thaw cycles and pressure widen it season after season, the exact reason early foundation repair costs a fraction of waiting.
Structural Settlement
Left unaddressed long enough, foundation movement can lead to uneven floors, bowing walls, and doors that no longer close properly : signs that foundation repair needs to happen now, not eventually.
Lower Property Value
Foundation issues are one of the first things a home inspector flags in Toronto. See why waterproofing your basement before selling often pays for itself.
Why Choose Aquatech Waterproofing For Foundation Repair
With over 30 years of experience, Aquatech Waterproofing stands out as a premier provider of foundation repair services in Toronto and the GTA. Our commitment to proper diagnosis, honest pricing, and lasting repairs makes us a top choice for clients. But don’t just take our word for it, experience the difference with us firsthand.
✦ Lifetime warranty
✦ Licensed Trades Master oversight
✦ BBB A+ Accredited
✦ 10-time HomeStars Best of Award winner
✦ Free, no-obligation inspection
✦ Structural cause identified before any quote
✦ 2026 Top Choice Award winner
✦ Epoxy, polyurethane, or reinforcement, whichever the crack actually needs
What Our Clients Have to Say
Basement Waterproofing Testimonials
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Rated 5 out of 5 starsIgor and Anatolia installed a new sump pump and interior waterproofing after a basement flood. The crew worked efficiently, kept the area clean, and finished on schedule. Professional, knowledgeable, and fairly priced—would absolutely recommend.
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Rated 5 out of 5 starsVlad’s crew worked diligently and professionally to waterproof our foundation. They made sure everything was tidy and clean when they were done. Everything was very good from the beginning communication to get the quote until the very end. We highly recommend this company.
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Rated 5 out of 5 starsJust had our house waterpoofed by Aquatech – fabulous job! They did exactly what was outlined to us … no surprises, which was wonderful. The workers on site, Igor and Anatoly, were amazing, very professional and detailed oriented. We had a couple of things that were out of the scope of the project and Igor went over and above resolving all issues beyond our expectations. In all, a very professional job and they tidied up after themselves – highly recommend!!
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Rated 5 out of 5 starsAlex and crew just finished. They were quick and left no mess afterwards. Time will tell how the exterior waterproofing holds up but I’m hoping it’s good now!
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Rated 5 out of 5 starsAlex & Alex dud an amazing job. Prompt, hard workers and kept everything as clean as possible. Looks great .than you.
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Rated 5 out of 5 starsMy basement sump pump room wall just below my outside stairs and veranda were wet when we had more than 1 inch of rain. I called Aquatech Basement Waterproofing, and assigned Eric to meet me and assessed the work to be done and provided a very reasonable quote, and the work was scheduled to meet my schedule. There were 2 crews of 2 men all from Ukraine, all very knowledgeable, professional and did a wonderful job. They protected the flooring from the my main doorway right down to the basement room where the work was being done. The first 2 man crew removed the Styrofoam from that was on the basement walls and ceiling, moved my battery backup sump pump and moved to a safe locatiion while working in a small area. They broke the concrete floor around the room down to the footings, which needed to be to add weeping tile. They cleaned the area as they worked, removed the concrete debris and then brought in the required material to install weeping tile. The second crew assisted with the installation of the waterproof membrane on the walls, install the weeping tile and cementing of the part of the floor where the weeping tile was installed and added to the sump pump basin. They reinstalled the light and light switch, wall plug outlet. This all was done in a few hours. I would highly recommend Aquatech as their staff are very knowledgeable and very efficient in doing their job. I would definitely use them again if I have any future for any basement Waterproofing, or water issues. Thank you so very much Dianne P. The were very professional s advised that I ca Eric came by promptly, assessed the situation, gave me a quote, very reasonable and scheduled
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Rated 5 out of 5 starsThanks to Andrew, Will, Vasyl, and Yuriy of Aquatech Waterproofing, I no longer panic when the weather forecast calls for rain. The four-man team applied interior waterproofing to a large portion of my basement in less than seven hours. They placed Dimpleboard on the walls, installed and covered new four-inch plastic weeping tile pipe and also backfilled, cleaned and cemented the entire work area. The crew was courteous, on time and professional. Company representative, Nico, who appraised the job before the work began, was also very knowledgeable and kindly answered all my questions. The cost was extremely reasonable and I have a transferable life-time warranty for their services. I highly recommend them.
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Rated 5 out of 5 starsAquatech Project Consultant Richard responded ultra-quickly to my call for an estimate on 2 cracks on the inside of my basement foundation wall, visible only after I removed panelling & insulation & only when it rained heavily & water was pouring through those 2 small cracks. Richard impressed me with his assessment expertise & the speed at which he provided the best quote & solution for my leaks & my budget as a retiree on a fixed income. The repair on the outside wall with weeping tile replacement & utilities locates was scheduled & communication with Rita in the office & follow up with Richard was excellent. The day of the repair, Water Proof Technicians Vasyl & Yuriy arrived on time & ready to work. They were totally professional, polite & prepared with expertise & the right equipment to complete the task. They impressed me to no end with their work ethic & support for each other rotating in & out of the trench to get down to the footings. They installed the new weeping tile, cleaned the foundation wall & revealed 2 very long cracks which they V cut and repaired with hydraulic concrete. The rest of the process was their standard applications of Aqua Block, fibreglass mesh, another layer of Aqua Block, a layer of Poly-tarp, & a Dimpleboard membrane installation. They back filled the trench & cleaned up the area to perfection. Aquatech is blessed to have Vasyl & Yuriy as employees – thorough & meticulous. They are 12 out of 10 in my opinion!!! Note: 2 of my neighbours were impressed & asked for Aquatech’s phone number from me. Thank you Richard, Rita, Vasyl & Yuri.
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Rated 5 out of 5 starsAquatech consultant, Shawn McGirr, investigated my water problem and provided a realistic and cost effective solution. A few days later Bob and Alex arrived to do the work. They both worked very hard and were efficient and clean. They completed an incredible amount of work in a very short period of time and left the worksite as clean as it was before they arrived. I’m confident that the issue has been resolved and comforted by the lifetime warranty.
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Rated 5 out of 5 starsAlex, Eugene, Mike and Igor did an amazing job with my basement waterproofing project. They were very personable, very hardworking and very efficient. I was very pleasantly surprised how quickly they finished the job. Everything was cleaned up and put back in order when they were done. I definitely recommend Aquatech Waterproofing. From my first meeting with Tony to discuss the project, I could tell they were the right choice
How Much Does Foundation Repair Cost in Toronto?
Foundation repair cost in Toronto typically ranges from $500 to $1,500 per crack for minor injection work, up to $15,000 or more for full structural restoration. Where you land in that range depends mostly on whether the crack is structural or non-structural: a simple non-structural crack often just needs injection, while active leaks, wall bowing, or settlement point toward something more involved. Add-ons are priced separately: epoxy injection for structural cracks runs on the higher end of that range, and full underpinning for severe cases runs $15,000-$100,000+ depending on scope. Contact Aquatech Waterproofing for a free, itemized quote, flexible financing is available so cost is never the reason a small crack becomes a bigger problem.
Current Foundation Repair Offers
Price
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Get a lower quote from any licensed Ontario foundation repair contractor and Aquatech will match it: same scope, same materials.
$300 Off
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Save $300 on exterior waterproofing projects over $12,000, ask your estimator to apply the discount at your free consultation.
lifetime
transferable Warranty
Enjoy peace of mind with long-term protection. Our systems are built to last and fully backed by warranty.
What Are The Most Effective Foundation Repair Methods?
- Helical Piers or Push Piers , These extend support deep into stable soil or bedrock, well below the reach of frost and seasonal soil movement. They’re the standard approach when a section of foundation has settled or when underpinning-level support is needed to stop ongoing movement for good.
- Carbon Fiber Reinforcement, Applied directly to a cracking or bowing wall, carbon fiber strips add tensile strength without the excavation that other structural repairs require. It’s often the right call when a wall is under pressure but hasn’t failed outright.
- Slab Piers, For concrete slab foundations that have sunk unevenly in sections, slab piers are driven beneath the affected area and used to lift and stabilize it back toward its original position.
- Crack Injection, Epoxy or polyurethane, depending on whether the crack is actively leaking or purely structural. This is the most common fix for hairline to moderate cracks that haven’t progressed to wall movement.
- Grouting, A grout mixture is injected beneath the foundation to compact loose soil and fill voids, providing support in cases where soil settlement, not the foundation itself, is the root cause.
FEATURED WATERPROOFING PROJECTS
Discover Our Completed Foundation Repair Projects
From single crack injections to full structural stabilization, Aquatech has completed foundation repair projects across Toronto and the surrounding region, epoxy injection, crack sealing, hydrostatic pressure fixes, and everything in between. Every project reflects the same standard: a proper diagnosis, quality materials, and lasting results backed by a lifetime warranty. Browse real projects below to see the kind of work homeowners trust us to deliver.
Foundation Repair in Toronto
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