Foundation Repairs & Waterproofing Ottawa

Foundation Repair in Ottawa's Climate

Ottawa's combination of heavy spring snowmelt, clay-heavy soil, and extreme seasonal temperature swings creates some of the most challenging conditions for residential foundations in eastern Canada. Hydrostatic pressure from saturated spring soil pushes against foundation walls. Freeze-thaw cycling opens cracks wider each season. Left unaddressed, these conditions lead to progressively more serious structural and water damage.

At Canadian Masonry Services, we approach foundation repairs the right way: identify the root cause of the problem, repair the structural deficiency, and then apply waterproofing to prevent recurrence. We do not simply cover over a problem with surface coatings and call it done.

Foundation Crack Types & Solutions

Not all foundation cracks are equal in severity, cause, or required fix. Our approach begins with proper diagnosis:

• Vertical cracks, typically from concrete shrinkage or minor settlement. Often addressed with injection repair and parging.
• Horizontal cracks, can indicate lateral soil pressure and may require structural assessment. Always taken seriously.
• Diagonal cracks, often indicate differential settlement. Location and pattern determine severity.
• Stair-step cracks in block foundations, mortar joint failure under load or settlement. Require repointing and often parging.
• Efflorescence and spalling, indicate long-term water movement through the wall. The water source must be addressed, not just the symptom.

Our Waterproofing Approach

Effective waterproofing addresses the exterior of the foundation, the side the water is coming from. We apply crystalline or membrane-based waterproofing systems to the exterior wall face, integrate proper drainage where needed, and ensure the surface is correctly prepared for long-term adhesion. Combined with proper grading and drainage at grade level, exterior waterproofing is the most effective long-term solution for Ottawa foundations.

Parging as Part of Foundation Protection

A quality parging coat is an essential complement to foundation waterproofing above the waterline. We frequently combine crack repair, waterproofing, and parging into a complete foundation protection package that addresses every vulnerability in the system.

Serving Ottawa Homeowners

Foundation repairs and waterproofing throughout Ottawa, Kanata, Orleans, Gloucester, Barrhaven, Stittsville, and Rockland. Call for a free on-site assessment, no deposit, no pressure.