Basement Leak Repair & Foundation Crack Injection
Serving homeowners across the GTA with fast, clean, and guaranteed basement leak repair and foundation crack
injection. If you have photos handy, you can text them to 289-366-1577 to help confirm the best repair option and obtain a quick quote.
No salespeople — you speak directly with a technician who does the work.
Basement Leak Repair Is Our Specialty
We focus on repairing basement leaks in poured concrete foundations, with a strong emphasis on
foundation crack repair and interior basement waterproofing. From single leaks to more complex
waterproofing projects, our goal is to fix the problem once and protect your home for the long term.
- Foundation Crack Injection & Sealing
- High-Pressure Polyurethane Crack Injection
- Tie-Rod Hole Leak Repair
- Interior & Exterior Basement Waterproofing
- Wet Basement & Basement Leak Repairs
- Window Well Drainage & Leak Repairs
- Interior Drainage / Weeping Tile Systems
- Sump Pump Installation & Replacement
Discovered Water in Your Basement?
Most GTA homes with poured concrete foundations can have leaks permanently repaired using professional polyurethane
injection techniques — completed cleanly from inside your home with no exterior digging required.
Whether you’re dealing with a foundation crack leak, leaking tie-rod hole, window well issue, or floor–wall (cove
joint) seepage, AquaGuard Injection & Waterproofing® focuses on fixing basement leaks at the source.
All injection repairs include a 25-year transferable warranty. If you’ve noticed dampness, staining, or active water
entry, call us now at 888-284-2384. In the meantime, download our Flooded Basement Action Plan so you know exactly
what to do until the problem is corrected.
Which Basement Leak Looks Most Like Yours?
Select the leak type that matches what you’re seeing in your basement. You can also
text us photos of your leak for fast advice at 289-366-1577. A senior technician
will review your photos and recommend the most appropriate repair.
Leaking Wall Crack
Most GTA homes built since 1975 develop foundation cracks from concrete shrinkage or settlement. Clay soils hold
significant moisture, leading these cracks to leak most during heavy rainfall or spring melt. Professional
foundation crack injection provides a permanent solution.
Window Well Leak
A home experiences window well flooding when drainage in the well fails. If the well fills with water—often due
to poor sizing or installation—water rises and enters the basement beneath the window frame. Proper drainage and
leak repair prevent recurring window well issues.
Tie-Rod or Snap-Rod Leak
Poured concrete foundations include tie-rod holes and snap-rods that often leak when hydrostatic pressure builds
around the home. It’s common for basements to develop multiple tie-rod or snap-rod leaks. Injection sealing
restores a watertight barrier quickly and cleanly.
Floor–Wall Joint Leak
Seepage where the basement floor meets the foundation wall is common when water builds up in the weeping tile,
beneath the slab, or inside block walls. This type of leak often appears as staining or a puddle along the
perimeter and requires proper drainage correction or sealing.
Water Over the Wall
Some homes experience water spilling over the top of the foundation wall due to high exterior grading, failed
caulking around doors, or improper step installations. This typically shows up as staining along the top of the
basement wall and signals exterior drainage issues.
Moldy or Damaged Drywall
Swollen baseboards, peeling paint, or moldy drywall usually mean something is leaking behind finished basement
walls—often a crack, tie-rod hole, or floor–wall joint seepage, and sometimes a plumbing leak. Identifying the
source early prevents costly water damage and mold.
Why Homeowners Trust AquaGuard Injection & Waterproofing®
- No salespeople — every assessment is completed by a senior leak-repair technician
- Same-day photo review + rapid quoting
- 20+ years of basement waterproofing and leak repair across the GTA
- 25-year transferable warranty on all major repairs
- Clean, professional workmanship inside your home — no digging in most cases
- We investigate fully and recommend only the exact repair needed — no broad, unnecessary “whole-wall” waterproofing proposals
- Local, family-operated business — not a franchise
Featured Customer Reviews
Real homeowners. Long-term results. Honest advice — wet basements reviewed by experienced technicians, not salespeople.
“The job done in 2008 is still holding up.”
Luc reviewed photos, explained the options clearly, priced everything up front, arrived on time, and cleaned up thoroughly.
We chose the reinforced repair and received a 25-year warranty.
“AquaGuard is the real deal.”
Very knowledgeable, professional, and thorough. Took his time to ensure the pipe penetration was fully waterproofed
through proper testing.
“Highly recommend.”
Another company pushed expensive excavation. Luc explained it wasn’t necessary, offered a better solution,
and guaranteed the repair for 25 years.
Frequently Asked Questions About Basement Leaks
What causes basement leaks in poured concrete foundations?
Most basement leaks originate with foundation cracks, tie-rod holes, window well drainage issues, or seepage at the wall–floor joint (cove joint). In general, hydrostatic pressure pushes groundwater through openings in your foundation during rainfall or snowmelt.
Can a basement leak be repaired from inside, or do I need exterior waterproofing?
In most cases, basement leak repairs can be done either from inside or outside. Most homeowners choose interior waterproofing repairs because they are quicker to schedule and less costly than exterior waterproofing. There are situations when exterior waterproofing is best; speak with one of our technicians to determine your options.
How much does foundation crack repair cost?
Most foundation cracks in poured concrete walls can be repaired for approximately $745–$895, depending on crack length, accessibility, and width. Tie-rod hole repairs cost considerably less. At AquaGuard, the vast majority of injection repairs are backed by our 25-year transferable warranty.
How quickly can you repair a basement leak?
Most interior basement leak repairs can be completed in a single visit, often within 24–48 hours of contacting us. Time-sensitive situations, such as preparing your home for sale or an active leak during heavy rain, can often be prioritized.
Does polyurethane crack injection really work permanently?
Yes. When performed properly, high-pressure polyurethane injection fills the crack through the full thickness of the wall. The resin expands, seals every pathway for water, and stays flexible over time to accommodate natural foundation movement. When required, we stabilize cracks with carbon fibre stitches to prevent future widening.
Should I fix a foundation crack even if it’s not leaking yet?
This is where AquaGuard differs from other waterproofing companies. If a crack is not leaking, there is no urgency to repair it—unless you are finishing your basement or preparing to sell your home. Proactive repair is often more cost-effective than dealing with finished basement damage, mold, or flooring replacement after a leak occurs.
Will repairing my basement leak help with resale value?
Absolutely. Buyers and home inspectors pay close attention to the basement. A professionally repaired crack—complete with documentation and a 25-year transferable warranty—helps protect your home, reduces objections during negotiations, and supports resale value.
Local Offices. Proven Results.
AquaGuard Injection & Waterproofing is a locally operated company with established offices across the GTA.
Our technicians understand local soil conditions, foundation types, and the most common causes of basement leaks
in each area we serve.
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Aurora Office
Basement leak repair & foundation crack injection in Aurora -
Oakville Office
Basement waterproofing & crack repair in Oakville -
Bolton Office
Basement leak repair in Bolton
What Our Customers Say
Homeowners across the GTA consistently choose AquaGuard Injection & Waterproofing® for honest assessments,
clean repairs, and long-term results. Many of our reviews come from clients in Aurora, Newmarket, Oakville,
Bolton, and surrounding communities who appreciate dealing directly with experienced technicians and receiving
clear, problem-specific repair recommendations.
“Aquaguard came to our rescue when we found a basement leak. The technician repaired the crack quickly and
professionally, explained the injection process, and left everything clean. Highly recommended.”
“Excellent service from start to finish. Our foundation crack was repaired, the warranty paperwork was provided, and
there was no mess left behind. We wouldn’t hesitate to call AquaGuard again for any future basement leak issues.”