Foundation Leak Repair Solutions for Industrial and Infrastructure Projects in Ontario

Foundation leak repair in progress showing sealant applied to a cracked concrete wall with water pooling on the floor.

Foundation leak repair is a critical service for commercial, industrial, and infrastructure properties across Ontario. Water intrusion in subgrade structures, such as parking garages, water treatment plants, tunnels, and utility vaults, can result in severe damage to concrete and steel, triggering costly remediation, compliance issues, and safety hazards.

At CAPCRETE, we specialize in non-residential foundation leak repair using advanced injection systems, high-performance resins, and site-specific solutions. Backed by over 40 years of combined expertise and partnerships with leading manufacturers like Prime Resins, our team works alongside engineering firms, facility managers, and contractors to restore integrity and extend the lifespan of key structures.

Why Foundation Leaks Occur in Commercial and Infrastructure Settings

Foundation leaks are often the result of hydrostatic pressure, structural movement, cold joints, pipe penetrations, or ageing waterproofing systems. Ontario’s climate, especially freeze-thaw conditions and heavy seasonal precipitation, only accelerates the deterioration of subgrade concrete. Unlike surface-level waterproofing methods, our injection and grouting strategies are designed to treat the problem from within—targeting the leak at its origin.

Our Approach to Foundation Leak Repair

Every project begins with a thorough site review—often in collaboration with the client’s structural engineering team—to assess crack activity, leak paths, material compatibility, and overall substrate condition. From there, CAPCRETE designs a foundation leak repair plan tailored to the structure’s specific needs, whether it’s an active water intrusion or dormant structural cracking.

Polyurethane injection is used when water is actively infiltrating. Moisture-reactive polyurethane resins expand within cracks and voids, forming a watertight seal—even under pressure. We utilize products that perform similarly to Prime Resins’ Prime Flex 900 XLV: low-viscosity, moisture-activated, and capable of sealing hairline cracks, construction joints, and form tie holes without excavation.

Epoxy injection is recommended for dry structural cracks. Rather than expanding, epoxy bonds the cracked concrete together, restoring load-bearing strength to foundations, columns, and structural slabs. This method is ideal for critical areas where durability and structural performance are non-negotiable.

Chemical grouting and curtain grouting are applied for more complex problems—where leaks are the result of soil voids, substrate erosion, or behind-wall infiltration. Hydrophilic and hydrophobic chemical grouts (like those from Prime Resins) are injected behind the structure, filling voids, stabilizing loose soils, and creating an impermeable curtain that protects the foundation envelope from continued moisture migration.

What Makes CAPCRETE Different

Unlike residential contractors, CAPCRETE focuses exclusively on non-residential and infrastructure-grade repair work. We’re not waterproofing basements—we’re helping cities, institutions, and industrial clients maintain the integrity of vital assets. From detailed diagnostics to minimally invasive installation, our process is engineered for reliability, performance, and long-term value.

  • Fast-curing, non-destructive injection methods
  • Materials designed for extreme hydrostatic and chemical environments
  • On-site collaboration with engineers and stakeholders
  • Proven track record across Ontario’s most demanding infrastructure projects

Get Expert Help with Foundation Leak Repair

Water intrusion is not a problem that resolves itself. If you’re managing a facility where concrete is exposed to moisture, cracking, or infiltration—take action before the damage spreads. CAPCRETE delivers engineered foundation leak repair solutions that restore safety and performance while minimizing operational downtime.

Contact us today to schedule a consultation or request a detailed site assessment. We’ll help you stop leaks at the source—and protect your structure from the ground up.