Toronto Exterior Basement Waterproofing

Our Approach to Exterior Basement Waterproofing & Foundation Leaks

Identifying Sources of Moisture

We start by inspecting your property’s exterior and interior to locate sources of moisture. We’ll assess staining patterns, crack locations, finish conditions, and past repair attempts. Our team will also inspect the soil grading near your foundation, downspouts, exterior foundation cracks, and other features that pose threats of moisture intrusions. 

Planning Waterproofing

Once we identify what has or could lead to moisture intrusions, we’ll recommend solutions that we know will work. If exterior waterproofing is right for your situation, we’ll design a system that seals your foundation and improves drainage. In other situations, we may recommend targeted crack repair, interior waterproofing, or sump pump upgrades to protect your property. 

System Installation

Using a tried-and-true process, we install exterior basement waterproofing systems as efficiently and carefully as possible. We leverage 55+ years of industry experience, our integrated drain, sewer, plumbing, and waterproofing expertise, and our extensive resources across the GTA and Niagara Region to deliver results that will work from day one and deliver long-term performance. 

The Benefits of Exterior Basement Waterproofing

Exterior basement waterproofing offers many practical advantages, including:

• Reduced outside water pressure on the walls – Exterior work helps manage groundwater and surface water before it reaches the concrete or block, which can reduce stress on the structure.
• Protection for finished basements – When you already have flooring, drywall, and built-in storage, limiting future leaks can help protect that investment.
• Suitability with local soil and weather conditions – In our freeze-thaw climate, exterior systems that drain well and protect the wall surface can better handle repeated cycles of expansion, contraction, and heavy downpours.
• Complete protection – When we pair exterior waterproofing with proper grading, downspout management, and healthy drains, we can address several common leak paths at once instead of only treating symptoms inside.

Exterior Basement Waterproofing FAQs

Below are questions about exterior basement waterproofing that customers frequently ask us. 

How Do I Know If Exterior Waterproofing Is Better than an Interior System?

Exterior waterproofing usually makes more sense when water builds up in the soil around your building and pushes through long stretches of wall or multiple cracks. Interior systems can help manage water that has already entered, especially where access outside is limited. 

During an inspection, we’ll look at where the water appears, how often it returns, and how your drains perform, then we’ll walk you through the pros and cons of each approach.

Can Exterior Basement Waterproofing Be Done Year-Round in the GTA?

The weather in the Greater Toronto Area affects how and when exterior waterproofing can be done. In general, milder conditions make excavation, drainage improvements, and membrane work more practical, while periods of deep frost or severe storms can limit what can be done safely. 

When you call, we’ll explain what the timing of your project may look like based on the season and your specific situation.

Will Exterior Waterproofing Fix All Future Basement Leaks?

No waterproofing method can remove every possible risk of water entry, because homes, soils, and weather can change over time. Exterior work can greatly reduce common sources of foundation leaks, especially when combined with proper grading, working downspouts, and healthy drains. 

If you have questions about how to best protect your home or commercial building, we can provide honest insights so you can decide what level of protection is going to be most advantageous. 

How Do I Prepare My Property for an Exterior Waterproofing Project?

It helps to move items away from the outside walls where crews may need access, such as planters, storage, or movable landscaping features. We can review which areas might be affected, how access will work, and what kind of cleanup you can expect afterward. Before any work starts, we’ll walk you through these steps, so you’ll know exactly how to prepare.

Can You Help If I Am Not Sure Whether I Need Exterior or Interior Waterproofing?

Many homeowners are not sure which type of waterproofing they need when they first call. Fortunately, we’re ready to assist. We can assess your property to determine whether an interior or exterior protection system is best. No matter the situation, our goal is to give you clear, authoritative information that helps you make the most cost-effective decision possible.