Water in Your Basement? We’ll Stop It — Fast.

Call (647) 370-5325

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 waterproofing services across Toronto. Whether you’re dealing with a visible leak or simply want peace of mind, our licensed technicians assess the issue, explain your options, and install systems built to last.

Call (647) 370-5325 or Request a Free Quote for your no-obligation inspection.

Why Waterproofing Matters in Toronto

Toronto’s housing stock includes many older homes built without modern waterproofing standards. Combined with clay-heavy soil, seasonal freeze-thaw cycles, and increasingly heavy rainfalls, that makes basement leaks fairly common—especially in neighborhoods like East York, the Junction, and North Toronto.

Common entry points include:

Foundation cracks

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Outdated weeping tile systems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.

Signs You Might Need Waterproofing

Many issues start small and go unnoticed. Here are common indicators that it’s time to schedule an inspection:

Damp or musty basement smell
Water pooling after rain
Foundation cracks or bowed walls
Leaking around basement windows
Peeling paint and white efflorescence
Water seeping where floor meets wall

Spotted one or more of these? A professional inspection can determine whether waterproofing is needed—and which method is right for you.

Basement Waterproofing Services in Toronto

No two basements are the same. That’s why we offer both interior and exterior solutions, along with specific services like crack repair and sump pump installations.

Interior Waterproofing

Approx. Cost: $80–$240/linear foot

Ideal for finished basements or when exterior excavation isn’t possible
We install drainage channels along the perimeter, vapor barriers on walls, and sump pumps to direct water out of the home
Minimal disruption, fast turnaround

Exterior Waterproofing

Approx. Cost: $150–$350/linear foot

Involves excavation around the foundation
We apply a waterproof membrane, drainage board (e.g., DELTA-MS), and replace old weeping tile
Best for long-term protection and resale value

Sump Pump Installation

Approx. Cost: $2,100–$2,700

Removes collected water through an automatic pump system
We install both primary and battery backup systems to ensure 24/7 protection—even during power outages

Foundation Crack Repair

Approx. Cost: $1,600–$3,200 per crack

Seals cracks using high-pressure polyurethane or epoxy injection
Stops existing leaks and prevents future spreading

Weeping Tile Replacement & French Drains

Approx. Cost: Included in exterior waterproofing / varies

Directs groundwater away from your foundation
Weeping tiles are buried perforated pipes surrounded by gravel that relieve hydrostatic pressure before it causes leaks

Window Well Installation

Approx. Cost: $1,800–$3,200

Protects basement windows by diverting water with drainage and gravel
Prevents leaks and meets Ontario Building Code for egress windows

Our 6-Step 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.

Get Help From Our Licenced & Insured Waterproofers

Toronto Basement Waterproofing Pricing

We price based on scope, site access, and method—not on guesswork. Here’s what most homeowners can expect:

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

All pricing includes materials, labour, cleanup, and warranty.

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

We use only proven, reliable products from trusted brands:

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

Toronto homeowners may qualify for partial reimbursement when installing eligible flood prevention systems under the Basement Flooding Protection Subsidy Program. The City offers rebates for the following services:

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

A homeowner in Midtown was dealing with recurring leaks and humidity. Our inspection showed hydrostatic pressure causing seepage at the floor-wall joint. We installed interior drain channels, a dimpled membrane, and a sump pump with backup. The system has performed flawlessly since—even during record rainfall.

External Basement Waterproofing and Foundation Repair in Toronto

Sometimes homeowners might experience water in the basement due to water-heavy rain. The best solution

Exterior Waterproofing Done Underneath Side Door in Mississauga

Exterior waterproofing is a crucial leak preventative measure. Unlike interior projects that address water that’s

exterior basement waterproofing project in Etobicoke

Exterior Waterproofing Etobicoke

MT Drains recently performed an exterior waterproofing job in Etobicoke. The property had a significant

External Basement Waterproofing and Foundation Repair in Toronto

Sometimes homeowners might experience water in the basement due to water-heavy rain. The best solution

Exterior Waterproofing Done Underneath Side Door in Mississauga

Exterior waterproofing is a crucial leak preventative measure. Unlike interior projects that address water that’s

Exterior Waterproofing Etobicoke

MT Drains recently performed an exterior waterproofing job in Etobicoke. The property had a significant

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

“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

If you’ve noticed moisture in your basement—or simply want to prevent it—book a no-pressure inspection today. We’ll provide clear options, honest pricing, and responsive service.

Response within 1 business day. No obligation. No pressure.

FAQ

How can I tell if my basement needs waterproofing?

If you notice moisture, musty odours, cracked walls, or standing water—those are all warning signs. An inspection can determine the exact cause and solution.

Is interior waterproofing enough for my home?

For many homes, yes—especially if the leaks are minor or your basement is finished. However, exterior waterproofing is often the better choice for long-term protection.

Can I waterproof during winter?

Yes. Interior waterproofing can be done year-round. Exterior work depends on weather and soil conditions, but we work well into the cold season.

Do you need permits for waterproofing in Toronto?

Some projects, like backwater valve installations, require permits. We handle all applications and inspections.

Do you handle mold removal too?

We don’t offer mold remediation, but we can refer you to trusted partners. Waterproofing will prevent future growth by eliminating moisture.

Will my homeowners insurance cover waterproofing?

Usually not—but it’s worth checking. Insurance often covers water damage, not prevention.

What Can Cause a Wet Carpet in the Basement?

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 the basement through cracks in the foundation or through window wells.
High humidity: High humidity levels in the basement 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 the basement, 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.