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Comprehensive Guide on Basement Waterproofing in Canada


Terry Kobatskyi

Terry Kobatskyi

Terry is a reliable project manager with over 15 years in construction field, who has started his career of working in the trenches. Learn More About Terry Kobatskyi

Boost your home’s value with a dry basement! Yet, basements are prone to moisture and water damage, posing risks to your property and health. Our guide explores the crucial need for effective basement waterproofing in Canada’s cold climate, covering its importance, functionality, and various methods!

What is Basement Waterproofing?

The baseline concept of basement waterproofing revolves around a range of protective techniques designed to deter water penetration into the basement, and manage any moisture that does intrude effectively. Canadian homeowners have an array of waterproofing solutions at their disposal, the choice of which heavily relies on multiple factors like the moisture source, climate, soil quality, and the property’s architectural design. 

Understanding How Basement Waterproofing Works

Basement waterproofing can be both proactive and reactive. Proactive measures aim at keeping groundwater and rainwater runoff away from your foundation walls, preventing any hydrostatic pressure build-up. Some popular external preventative measures include:

  1. French drain
  2. Footing drain
  3. Damp proofing
  4. Soil gradation
  5. Foundation crack sealing

Reactive measures, on the other hand, tackle water and moisture that has already entered the basement. Practical reactive measures include:

  1. Sump pump installation
  2. Basement floor drain
  3. Dehumidifier

Benefits and Trade-offs of Basement Waterproofing

Basement waterproofing is widely accepted as a home improvement necessity in Canada. But like any construction project, it comes with its own set of advantages and considerations.


  1. Prevents mold grow
  2. Protects against structural damage
  3. Boosts comfort levels in the living areas
  4. Enhances the quality of indoor air
  5. Enables versatile usage of the basement space, whether it’s for storage or as additional living space


  1. Investment intensive, requiring a hefty upfront cost
  2. Potentially requires extensive excavation
  3. Mold removal can be potentially dangerous

Key Basement Waterproofing Techniques in Canada

In the face of a diverse range of structural and climatic variations in Canada, a one-size-fits-all approach doesn’t cut it. Instead, the market has an ample choice of exterior and interior waterproofing methods, suited to different water ingress scenarios.

Interior Waterproofing Solutions

Interior treatments are typically reactive measures, tackling water that has successfully permeated the basement interiors. These methods, primarily due to their no-excavation-required policy, are cost-effective and less demanding.

  1. Installation of a sump pump or a basement floor drain to dispel standing water.
  2. Atmosphere regulation through a dehumidifier to keep humidity levels in check.
  3. Application of waterproof sealants or interior waterproofing membranes to restrict water penetration through cracks and holes.

Exterior Waterproofing Solutions

The outer protective measures are proactive. They counter the water ingress before it meets the foundation walls, making them more labor-intensive.

  1. Application of a waterproofing membrane or waterproofing paint—These layers are applied on the exterior wall’s surface to create a water-resistant barrier.
  2. Construction of a footing Drain—This is a perimeter drain that facilitates the swift drainage of water surrounding the house foundation.

Set Up Your Canadian Basement For Waterproofing

It’s prudent to carry a primary assessment of your basement, identifying the underlying water intrusion causes. This step provides a clarity vital for precise solution selection and effective waterproofing.

  1. Keep an eye out for leaking gutters, deteriorated sewer lines, and malfunctioned main water lines.
  2. Analyze soil quality, landscaping gradient, and drainage systems.
  3. Inspect for cracks in basement walls, floors, and windows.
  4. Inspect trees and shrubs near the foundation closely—they may hold water against your foundation.

Contact Aquatech Waterproofing

Contact Aquatech Waterproofing for expert basement waterproofing solutions in Canada. They can help you understand and address your specific waterproofing needs, ensuring your underhome space remains dry, mold-free, and usable for the long term. Whether you opt for a DIY approach or professional assistance, Aquatech Waterproofing has the expertise to guide you through the process. 

Don’t let water damage compromise your home; reach out to Aquatech Waterproofing for effective solutions!

FAQs About Basement Waterproofing

Basement waterproofing typically needs to be done once, but it can require maintenance every 3-5 years.
Disadvantages of basement waterproofing can include high costs, disruption during installation, and the potential for hidden issues to remain undetected.

The most effective way to waterproof a basement often involves a combination of exterior and interior waterproofing methods, such as using a combination of sealants, drainage systems, and proper grading.

Common basement waterproofing methods include interior sealants, exterior membranes, drainage systems, and sometimes a combination of these techniques.

Waterproofing a basement can help reduce humidity by preventing moisture from entering the space. However, it may not eliminate humidity entirely, so dehumidifiers may still be needed for optimal control.