Exterior Basement Waterproofing in Toronto
Exterior basement waterproofing is one of the most effective long-term solutions for preventing water from getting into your home. At GAMCON, we understand the unique conditions that Toronto homes face. With clay-heavy soil, constant freeze-thaw cycles, and aging concrete foundations, water intrusion can become a serious issue. Our team offers tailored solutions to tackle these problems head-on using proven foundation waterproofing techniques. We help homeowners stay dry and protected with dependable results that last.
Call (416) 888-4188 today to speak with a waterproofing expert.
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Benefits of Exterior Basement Waterproofing
Exterior basement waterproofing isn’t just about stopping leaks. It brings a whole range of benefits that improve your home’s overall condition and value. By stopping water before it even reaches your interior, this approach helps with:
- Full moisture protection around your home’s foundation
- Strengthening your concrete foundation and helping prevent structural damage
- Reducing humidity inside your home, which helps with air quality and mould prevention
- Boosting your home’s property value and curb appeal
It’s particularly ideal for older homes or properties with ongoing basement water seepage or poor exterior drainage. When you invest in long-term water protection, you’re also investing in the future of your home.
GAMCON’s Exterior Waterproofing Solutions
At GAMCON, we don’t take a one-size-fits-all approach. Our residential waterproofing services are comprehensive and built around your home’s specific needs. Here’s how we break down our full exterior drainage solutions into clear, effective steps:
Excavation Around the Foundation
Everything starts with careful excavation down to the footing of your foundation. This allows us to access and treat the entire wall. Even in Toronto’s tighter lots, our team works efficiently and safely while protecting your landscaping and surrounding structures.
Foundation Wall Cleaning & Crack Repair
Once exposed, the foundation wall is cleaned thoroughly using high-pressure washing. Any visible cracks or gaps are repaired using hydraulic cement, epoxy, or polyurethane injection, depending on the severity of the damage. This step is essential for strong, reliable foundation wall repair.
Waterproof Membrane Application
After repairs, we apply a thick, waterproof membrane—either as a liquid rubber coating or a sheet material. This forms a seamless, flexible vapour barrier that keeps water from entering the wall surface.
Installation of Dimple Board Drainage Layer
To add another layer of protection, we install a high-density dimple board over the membrane. This drainage sheet not only protects the membrane but also helps guide groundwater away from the wall down to the weeping tile system.
Weeping Tile System with Gravel Backfill
We install a perforated weeping tile, wrapped in filter fabric and surrounded by gravel, at the base of the wall. This drainage pipe moves water away from the foundation and into your sump pump system or a storm drain, giving your home an added line of defence.
Backfilling & Final Surface Restoration
After all systems are in place, we backfill the trench in layers with clean soil or gravel. Our team makes sure to return your yard, driveway, or landscaping to its original look, whether that means pouring new concrete, relaying interlock, or restoring garden beds.
Why GAMCON is the Go-To Choice for Exterior Waterproofing
At GAMCON, we’ve been helping Toronto homeowners stay dry for years. We combine deep local experience with the latest in foundation waterproofing technology. Here’s what sets us apart:
- Familiarity with Toronto’s soil types and climate challenges
- Licensed and insured technicians with a safety-first approach
- Transparent pricing with no hidden costs
- Respectful worksite practices and minimal disruption
- Strong reviews and referrals from satisfied clients
Whether you’re looking for full below-grade waterproofing or targeted crawl space waterproofing, our team delivers results that last.
Our Exterior Waterproofing Process
From your first call to the final cleanup, GAMCON takes care of every step. We make it easy to understand what’s happening at each stage.
Free On-Site Evaluation and Inspection
We start with a no-obligation site visit. Our technicians assess your home’s exterior, check the soil conditions and slope, and look at access points for excavation. We also take photos and moisture readings to build a clear picture of what’s needed.
Customized Waterproofing Plan
Next, we create a personalized plan based on your foundation’s depth, the severity of the issue, nearby structures, and your specific goals. We walk you through everything so you know exactly what to expect.
Permit Handling and Code-Compliant Work
We handle any permits required for exterior excavation. All our work is completed by certified professionals and follows building code-compliant standards in Ontario.
Post-Installation Testing and Warranty
Once the job is done, we clean up the site and conduct a final inspection. We also provide a written warranty—often long-term or lifetime—so you can feel confident in your new waterproofing system.
Interior vs. Exterior Basement Waterproofing
Wondering how exterior basement waterproofing compares to interior options? Here’s a simple breakdown:
- Exterior waterproofing stops water before it reaches the foundation
- Interior systems manage water after it’s already inside
While interior options can be more affordable and less disruptive, they don’t solve the root problem. If your goal is long-term water protection, exterior methods provide better performance and durability. They’re especially effective for serious water intrusion or if you’re seeing damage on the outside of your foundation.
Cost of Exterior Basement Waterproofing in Toronto
We understand that cost matters. On average, exterior basement waterproofing in Toronto runs between $100 and $250 per linear foot. Pricing depends on several factors, including:
- Depth of excavation
- Condition of the foundation wall
- Surface restoration needs (concrete, interlock, soil)
- Obstructions such as decks or landscaping features
Every GAMCON estimate includes labour, materials, cleanup, and warranty coverage. We also help you explore available rebates and offer financing plans to make the project more manageable.
Get a Free Exterior Waterproofing Quote Today
If your basement is showing signs of trouble, now’s the time to take action. Reach out to GAMCON for a free, no-pressure estimate on exterior basement waterproofing in Toronto. Our team will walk you through your options, help you access rebates or financing options, and get your home on track for a dry, safe future.
Explore GAMCON’s Portfolio: Toronto Basement Waterproofing Projects
Service Areas We Provide Basement Waterproofing
- Barrie
- Burlington
- East York
- Etobicoke
- Hamilton
- Markham
- Mississauga
- North York
- Oakville
- Oshawa
- Richmond Hill
- Scarborough
- The Beaches
- Toronto
- Vaughan
Testimonials
Janice & Rob
The Beaches (Toronto)
“Our basement was a damp nightmare – moldy, leaks everywhere. We had other companies look at it, but GAMCON was the only one who truly understood the problem. They used this heavy-duty membrane stuff…it’s overkill, honestly, but in the best way! Now our basement’s completely dry, and we even finished it. Feels like a whole new part of our home.”
Sarah T
Etobicoke
“We bought an older home in Etobicoke with a partially finished basement. We were nervous about hidden water issues. GAMCON’s inspection was SO thorough, and they found some old cracks that needed fixing. The best part? They explained everything in plain language, and their waterproofing materials were top-notch. Now we sleep easy knowing our basement is protected.”
Costa and Maria P
Greektown (Toronto)
“We run a family restaurant on the Danforth, and it’s been in this building for generations. A few years ago, we noticed water seeping in – a disaster waiting to happen. GAMCON found some foundation issues we didn’t even know about. They used these crazy strong injections and fixed it right. Their work is solid – just like the materials they use – and we know our business is safe.”
Steve M
Property Manager, North York
“Our office building in North York had a leaky basement that was affecting storage. GAMCON came highly recommended for getting the job done fast and right. Not only did they use the best waterproofing stuff we’ve seen, but their crew was super efficient. Minimal mess, and now those leaks are a distant memory.”
Basement Waterproofing FAQ
How long does basement waterproofing take?
Most projects are completed within 2–7 days, depending on the scope and whether interior or exterior methods are used.
How much does it cost to waterproof a basement in Toronto?
Costs vary based on your basement’s size and condition. Contact us for a personalized free quote.
Do you provide a warranty?
Yes, all our basement waterproofing services come with a comprehensive warranty for peace of mind.
Can waterproofing be done in winter?
Yes, interior waterproofing can be performed year-round. Exterior waterproofing is typically scheduled in warmer months but can be adapted to winter with the right planning.