Exterior waterproofing is one of the most effective ways to protect your home from basement leaks and foundation water damage. By stopping water before it reaches the foundation walls, exterior waterproofing prevents moisture intrusion and helps maintain the structural integrity of your home.

NTL Contracting & Waterproofing Inc. provides professional exterior waterproofing services across Toronto and the GTA, helping homeowners eliminate basement leaks and protect their foundations from long-term damage.

With more than 25 years of construction and waterproofing experience, our team installs proven waterproofing systems designed to keep your basement dry and your foundation protected.

Call 416-850-4022 to schedule a free exterior waterproofing inspection.

What Is Exterior Waterproofing?

Exterior waterproofing is a process that involves excavating the soil around the foundation walls and installing a waterproof barrier to prevent water from penetrating the structure.

This method stops water before it enters the basement, making it one of the most reliable long-term waterproofing solutions available.

Exterior waterproofing systems typically include:

  • Excavation around the foundation walls
  • Foundation crack repair
  • Waterproof membrane installation
  • Drainage board installation
  • Weeping tile drainage systems
  • Proper backfilling and grading

When installed correctly, exterior waterproofing can protect your home for decades.

Signs Your Home May Need Exterior Waterproofing

Basement water problems often develop slowly over time. Identifying the warning signs early can help prevent major structural issues.

Common signs that exterior waterproofing may be required include:

  • Water leaking through basement walls
  • Damp or musty basement odours
  • Foundation cracks in concrete walls
  • Water stains or discolouration on basement walls
  • Mold or mildew growth in the basement
  • Pooling water near the foundation

If you notice any of these issues, a professional inspection can determine whether exterior waterproofing is the best solution.

Our Exterior Waterproofing Process

1. Foundation Excavation

The first step in exterior waterproofing is excavating the soil around the foundation walls to expose the structure. This allows our team to inspect the foundation and identify any cracks or damage.

2. Foundation Wall Preparation

Once the foundation walls are exposed, they are thoroughly cleaned and prepared. Any cracks or structural issues are repaired before the waterproofing system is installed.

3. Waterproof Membrane Installation

A high-quality waterproof membrane is applied to the exterior foundation wall to create a barrier that prevents water from entering the structure.

4. Drainage System Installation

Drainage boards and weeping tile systems are installed to direct water away from the foundation and prevent hydrostatic pressure buildup.

5. Backfilling and Site Restoration

Once the waterproofing system is installed, the excavated area is backfilled and the property is restored.

Benefits of Exterior Waterproofing

✔ Stops water before it enters the basement

✔ Protects the structural integrity of the foundation

✔ Prevents mold and mildew growth

✔ Reduces hydrostatic pressure on foundation walls

✔ Provides long-term protection for your home

Because exterior waterproofing addresses the source of the problem, it is often considered the most effective waterproofing solution.

Why Choose NTL for Exterior Waterproofing?

Homeowners across Toronto trust NTL Contracting & Waterproofing Inc. because of our experience and commitment to quality workmanship.

✔ Over 25 years of construction experience

✔ Professional waterproofing systems

✔ Residential and commercial project experience

✔ Skilled and experienced waterproofing crews

Unlike many companies that subcontract their work, our team performs the waterproofing installation ourselves to ensure every project meets our standards.

NTL Contracting & Waterproofing Inc. provides exterior waterproofing services across Toronto and surrounding communities including:

Toronto

Vaughan

Richmond Hill

Markham

Mississauga

Etobicoke

North York

Scarborough

If you are searching for exterior waterproofing in Toronto, our team can provide a professional inspection and recommend the best solution for your property.

Request a Free Exterior Waterproofing Inspection

Water intrusion can cause serious damage if not addressed early. Exterior waterproofing protects your foundation and helps keep your basement dry.

If you are experiencing a basement leak or foundation water problem, contact

NTL Contracting & Waterproofing Inc. today.

Call: 416-850-4022

Email: sales@ntlcontracting.com

Schedule your free exterior waterproofing inspection today.