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Identifies and fixes all sources of water damage in your basement with lasting repair solutions.
A wet basement is the single most common complaint we hear from Toronto homeowners, and after repairing thousands of them, we can tell you this: there is never just one cause. A wet basement is almost always the result of multiple factors working together — poor drainage, aging foundation materials, Toronto's expansive clay soil, and a water table that rises significantly during spring thaw and after heavy rains. The key to a permanent fix is a thorough diagnosis that identifies every contributing factor, not just the most obvious one.
Why Choose Us
In our experience, roughly 60% of wet basement issues in Toronto trace back to failed or clogged weeping tile. Most homes built between the 1940s and 1970s — which represent a huge portion of Toronto's housing stock — were built with clay or concrete drain tile that has a functional lifespan of about 30 to 40 years. Once that weeping tile silts up, collapses, or gets crushed by root intrusion, groundwater has no way to drain away from the foundation. Hydrostatic pressure builds, and water finds its way in through cracks, the floor-wall joint (called a cove joint), and even through the pores of the concrete itself. Replacing failed weeping tile — either through an interior waterproofing system or exterior excavation — is usually the most critical step in any wet basement repair.
Don't Ignore the Signs
Another major contributor we see in Toronto is surface water mismanagement. Downspouts discharging directly at the foundation, negative grading (soil sloping toward the house instead of away), and cracked or settled walkways that funnel rainwater to the foundation wall. These are addressable without major construction — sometimes regrading the first 1.5 metres away from the house and extending downspouts 6 feet from the foundation makes a dramatic difference. The Ontario Building Code (Section 9.14.6) requires a minimum 5% grade away from the building, but we find that many Toronto properties have lost that grade over the decades as soil settles.
For homes with poured concrete foundations, shrinkage cracks are the most common entry point. These cracks form as the concrete cures and are completely normal — but they become a problem when hydrostatic pressure pushes water through them. We repair these with epoxy or polyurethane injection, which fills the crack from front to back and provides a permanent seal. For homes with cinder block or concrete block foundations — very common in Toronto homes from the 1950s and 1960s — the situation is more complex because water can fill the hollow cores of the blocks and weep out through mortar joints at multiple points. Block foundations typically require a full interior drainage system with a vapor barrier to manage moisture effectively.
We also want Toronto homeowners to know about the City of Toronto Basement Flooding Protection Subsidy Program, which offers up to $3,400 toward the cost of flood protection measures including sump pump installation, backwater valve installation, and disconnecting downspouts from the storm sewer. We help our clients with the application process for every eligible project. A wet basement is not something you should live with — it damages your home's structure, creates mould and air quality problems, and reduces your property value. The good news is that with the right diagnosis and repair approach, it is a permanently solvable problem.
Materials & Methods
Comprehensive inspection using thermal imaging cameras, pin-type and pinless moisture meters, and visual assessment to map all moisture entry points, distinguish between condensation and infiltration, and prioritize repairs based on severity.
Interior perimeter drainage channel installed at the wall-floor joint where most basement water enters. Intercepts seepage before it reaches the floor and directs it to a sump pit through 4-inch perforated PVC pipe bedded in clear gravel.
Low-pressure injection of expanding polyurethane foam or structural epoxy resin into foundation cracks, filling the full depth of the crack from interior face to soil side. Polyurethane for active leaks, epoxy for structural restoration.
For concrete block foundations: weep holes drilled at the base of each block core to drain trapped water to the perimeter system, combined with a full-height dimpled membrane and vapor barrier to manage moisture migrating through porous block walls.
Our Process
We perform a thorough inspection to identify every source of water entry and moisture in your basement.
Based on our findings, we recommend the most effective and cost-efficient repair strategy.
Our certified technicians execute the repairs using industry-leading materials and techniques.
We verify the repairs are effective and provide warranty documentation for your peace of mind.
Transparent Pricing
Honest pricing with no hidden fees. Every quote is customized to your specific needs.
| Service | Price Range |
|---|---|
| Water source diagnosis | Free with repair |
| Minor leak repair | $500 – $2,000 |
| Major wet basement repair | $3,000 – $10,000 |
| Complete waterproofing system | $5,000 – $15,000 |
Prices vary by project scope. Get an accurate quote with a free inspection.
Get Your Free QuoteClient Reviews
“Outstanding job! My basement is finally dry thanks to your team. No more musty smell or moisture problems. A+ service!”
“From the initial appointment to final inspection, service was exceptional. Prompt, professional, and results exceeded expectations.”
“Professional and friendly staff. They solved our leaky basement in no time. The results were fantastic. Basement has been leak-free since the work was done.”
Experience & Expertise
Related Solutions
Seals your basement walls and floors from the inside to stop water infiltration and prevent moisture damage.
Learn More →Expert foundation crack repair using advanced injection techniques to permanently seal and stabilize cracks.
Learn More →Professional sump pump installation and replacement to keep your basement flood-free year-round.
Learn More →Service Areas
We provide wet basement repair throughout Toronto and the Greater Toronto Area.
Common Questions
