Case Study: Foundation Crack Repair to Stop Seasonal Basement Leaks in Muskoka

Location: Muskoka, Ontario
Client: The Donnelly Family
Service: Foundation wall crack injection and sealing
Problem: Repeated water seepage through a visible foundation wall crack

The Challenge

The Donnelly family’s Muskoka property, a year-round lakeside cottage, began to experience minor basement flooding each spring. A single, diagonal crack along the poured concrete foundation wall was identified as the culprit. During heavy rain or snowmelt, water entered through the crack and soaked the basement floor, leading to mold growth and water-damaged items.

Because the property is surrounded by sloped land and has no exterior access on one side, an interior repair solution was needed that could stop water infiltration without excavation.

Our Solution

Direct Waterproofing performed a high-pressure polyurethane injection, a fast and non-invasive method to seal active foundation leaks from inside the home.

Scope of Work:

• Crack Cleaning & Preparation: Chipped and cleaned the crack area to ensure strong material bonding.
• Injection Port Installation: Inserted injection ports at regular intervals along the length of the crack.
• Polyurethane Injection: Pressurized polyurethane resin was injected to completely fill the crack from inside the wall out, expanding to create a watertight seal.
• Surface Finishing: Applied epoxy on the surface for extra protection and visual clarity. 

The Result

The injection fully sealed the crack and eliminated water seepage even during the heaviest spring melt. The basement remained dry, and the family was able to clean, refinish, and reuse the affected area with confidence.

Client Feedback

“We were skeptical that something this small could cause so much water. But after one quick visit from Direct Waterproofing, the problem was gone. Great team, great work.”
— Mr. Donnelly, Muskoka

Foundation Crack Repair in Muskoka Homes

Don’t let a small crack become a big problem. If your cottage or home in Muskoka is experiencing leaks or foundation damage, contact the experts at Direct Waterproofing or book a free consultation today.