Professional, Long-Term Waterproofing Backed by Real Experience
Water in your basement? We’ll stop it—efficiently, cleanly, and with lasting results.
For over 20 years, MT Drains & Plumbing has delivered dependable basement waterproofing Toronto homeowners trust. Whether you’re battling a persistent wet basement or simply want peace of mind, our licensed technicians assess the issue, explain your options, and install systems built to last.

Why Waterproofing Matters in Toronto
Cracks along basement walls
Poor grading
Outdated weeping tile systems
Leaking basement windows or window wells
We identify the cause—not just the symptom—and recommend tailored solutions based on your property layout, foundation type, and budget that keeps your basement dry even during spring thaws.
Signs You Might Need Waterproofing
Damp or musty smell
Foundation cracks or bowed walls
Leaking around basement windows
Peeling paint and white efflorescence
Water seeping where floor meets wall

Basement Waterproofing Services in Toronto
We offer both interior and exterior solutions, along with specific services like crack repair and sump pump installations.

Approx. Cost: $2,100–$2,700

Strengthen and deepen your home’s foundation to add space and improve structural support.

Approx. Cost: Included in exterior waterproofing / varies

Approx. Cost: $1,600–$3,200 per crack
Even a hairline crack can turn into a wet basement problem—our team seals foundation cracks as part of complete basement waterproofing Toronto solutions.

Approx. Cost: Included in exterior waterproofing / varies
Without proper drainage, window wells funnel water straight into a wet basement; our Toronto crew installs code-compliant drains and covers.

We trace every leak to its source, eliminate the pathway, and leave you with no more wet basement stress.

Our 6-Step Wet Basement Waterproofing Process
Knowing what to expect puts homeowners at ease. Here’s how we work:
Free Onsite Inspection
We assess signs of moisture and diagnose all signs of water intrusion.Detailed Quote
Clear pricing, scope of work, and timelines—no surprises.Permits & Rebates (If Required)
We manage the paperwork, including eligibility for city subsidies.Site Preparation
Our team protects your home, sets up clean access, and preps the work zone.Waterproofing Installation
All materials installed to code by our in-house crew —no subcontractors.Final Walkthrough & Warranty
We explain what was done, test the system, clean up, and issue a warranty.
Toronto’s Clay Soil & High Water Table: Why Leaks Happen Here

Get Help From Our Licenced & Insured Waterproofers
Toronto Basement Waterproofing Pricing
Service | Typical Cost Range |
---|---|
Interior Waterproofing | $80 – $240 / linear foot |
Exterior Waterproofing | $150 – $350 / linear foot |
Crack Repair | $1,600 – $3,200 per crack |
Sump Pump Installation | $2,100 – $2,700 |
Window Well Installation | $1,800 – $3,200 |
Backwater Valve Installation | $2,000 – $3,200 |
Interior vs. Exterior Waterproofing: A Quick Guide
Feature | Interior Waterproofing | Exterior Waterproofing |
---|---|---|
Disruption | Minimal (inside work only) | Moderate (requires excavation) |
Effectiveness | Excellent for mild–moderate leaks | Best for severe, long-term leaks |
Timeline | 1–2 days | 3–7 days |
Cost | Lower upfront cost | Higher upfront, better ROI |
Use Case | Finished basements, condos | Homes with frequent flooding |
Materials We Trust and Use
- DELTA®-MS Membrane – Creates an air gap between soil and wall
- Aqua Bloc 770-06 – Seamless, flexible waterproof coating
- DMX Drain Board – Boosts exterior drainage performance
- Corrugated Pipe with Filter Sock – Prevents clogging
- Bakor Yellow Jacket Mesh – Reinforces waterproof membranes
- Limestone Gravel – Improves subsurface drainage
- Parging Mix – Adds a protective finish over foundation walls

Toronto Waterproofing Rebates: What You Need to Know
- Backwater Valve Installation: Up to $1,250
- Sump Pump Installation (with backup): Up to $1,750
- Foundation Drain (Weeping Tile) Disconnection: Up to $400
Important: Each item has different rebate caps, and reimbursement applies to eligible costs only.
Basic Eligibility Requirements
- Your home must be located in Toronto and be an existing, single-family residential home.
- The work must be completed by a City-licensed contractor (like MT Drains & Plumbing).
- Downspouts must be disconnected from the sewer system (if applicable).
- You must submit your application within 12 months of the installation.
We handle qualifying work and can walk you through the paperwork to help you apply. Ask us about rebates during your inspection.

Case Study: Interior Waterproofing in Midtown

Main Water Line Replacement With Trenchless Technology in Toronto
The new house was built but the lead main water supply from outside ( property

Trench Drain Installation at a Gas Station in Barrie
When people fill their cars with gas, the last thing they want to do is

Garage Trench Drain Installation in Toronto
Trench drain installed at the edge of the garage to move water away from the

Main Water Line Replacement With Trenchless Technology in Toronto
The new house was built but the lead main water supply from outside ( property

Trench Drain Installation at a Gas Station in Barrie
When people fill their cars with gas, the last thing they want to do is

Garage Trench Drain Installation in Toronto
Trench drain installed at the edge of the garage to move water away from the
Why Toronto Homeowners Trust MT Drains & Plumbing
- Over 20 years in waterproofing and plumbing across the GTA
- 5,000+ jobs completed with long-term results
- Fully licensed, insured, and WSIB-compliant
- BBB Accredited, HomeStars Verified, and TrustedPros Recommended
- All work covered by written warranties
- No subcontractors — every technician is part of our in-house team
- Dozens of verified 5-star reviews from Toronto clients who no longer worry about a wet basement.
“We’re here to solve the issue, not just patch it. Every system we install is meant to last—and we stand behind it.”

Request a Free Basement Waterproofing Quote in Toronto
FAQ
If you notice moisture, musty odours, cracked walls, or standing water—classic wet basement signs—book a basement waterproofing Toronto inspection.
For many wet basement issues, an interior system is sufficient, especially if the leaks are minor or your basement is finished. However, exterior waterproofing is often the better choice for long-term protection.
Yes. Interior waterproofing can be done year-round. Exterior work depends on weather and soil conditions, but we work well into the cold season.
Some projects—backwater valve installations and other repair services—require permits. We handle every application and inspection on your behalf.
We don’t offer mold remediation, but we can refer you to trusted partners. Waterproofing will prevent future growth by eliminating moisture.
Usually not—but it’s worth checking. Insurance often covers water damage, not prevention.
There are several potential causes of a wet carpet in a basement in Toronto. Some of the most common include:
Leaky pipes: A leak in the plumbing system can cause water to seep into the basement and cause a wet carpet.
Flooding: Heavy rain or snowfall can cause water to seep into your property through cracks in the foundation or through window wells.
High humidity: High humidity levels can lead to condensation on surfaces, which can cause a wet carpet.
Clogged or malfunctioning sump pump: A sump pump is used to remove water that has accumulated in the basement. If it is clogged or not working properly, it can cause water to buildup and create a wet carpet.
Improperly installed or maintained drainage: Improperly installed or maintained drainage systems can cause water to collect around the foundation and seep into your home, creating a wet carpet.
Improperly installed or maintained window wells.
It is important to identify the cause of the wet carpet and take appropriate action to fix the problem. It's better to seek professional help in order to find out the source and prevent any further damage.
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