Professional Basement Waterproofing for Toronto Homes
Why Basement Waterproofing Matters in Toronto
Older homes in neighbourhoods like East York, the Junction, Midtown, and North Toronto are especially prone to seepage. The CMHC damp basement guide notes that once water finds a path, repair costs rise quickly, making early intervention worth it.
Cracks along basement walls
Poor grading
Outdated weeping tile systems
Leaking basement windows or window wells
Signs Your Basement May Need Waterproofing
A damp or musty smell
Cracks or bowed foundation walls
Leaking around basement windows
Peeling paint or white efflorescence
Moisture where the wall meets the floor
Our Basement Waterproofing Services in Toronto
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 Waterproofing Process
Free Onsite Inspection
We assess signs of moisture and diagnose all signs of water intrusion.Detailed Quote
Transparent pricing, scope, and timelines—no surprises.Permits & Rebates (If Required)
We assist with City of Toronto paperwork when applicable.Site Preparation
The workspace is protected, and access paths are secured.Waterproofing Installation
All work is performed by our in-house licensed technicians—no subcontractors.Final Walkthrough & Warranty
We test the system, clean the site, and issue a written warranty.
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
Why Toronto Basements Leak So Often
cracks
tie-rod holes
porous concrete
the wall-floor joint
Get Help From Our Licenced & Insured Waterproofers
Transparent Toronto 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 |
Toronto Flood Protection Rebates
You may qualify for reimbursement through the City’s Basement Flooding Protection Subsidy Program:
- 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.
Eligibility:
Home must be in Toronto
Work must be completed by a City-licensed contractor
Downspouts disconnected (if required)
Application submitted within 12 months
Why Homeowners Choose 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
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.
Blog
Why Does My Basement Sump Pump Smell Bad?
A foul smell coming from your sump pump isn’t just unpleasant—it can point to a maintenance issue, a drainage problem, or even potential health risks.
Efflorescence Streaks on Basement Walls: Cosmetic Issue or Water Intrusion?
Efflorescence is a common issue in concrete and masonry basements. It shows up as white, powdery streaks or flakes on the wall surface. In many
Why Your Basement Leaks in Heavy Rain—and How to Fix It
Basements often leak during heavy rain because water builds up around your foundation and finds its way through cracks, weak spots, or poor drainage systems.
