Durable, Code-Compliant Commercial Waterproofing That Performs for Decades
Water is one of the most destructive forces in commercial construction — and the cost of failure isn’t just structural, it’s financial. At SealCo Construction Group, we provide high-performance commercial waterproofing solutions that meet and exceed today’s building envelope standards. From below-grade to rooftop, our integrated approach ensures watertight protection, energy efficiency, and total system compatibility.
Serving general contractors, developers, and institutional clients across Toronto, the GTA, and Ontario, SealCo delivers dependable envelope protection — built for performance, built to last.
Below-Grade Waterproofing
Blindside Waterproofing
Roof Deck & Plaza Deck Waterproofing
Podium Slab Waterproofing
Crystalline Waterproofing for Structural Concrete
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Commercial Foundation Drainage Systems
Expansion Joint Waterproofing
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As envelope specialists, we don’t stop at membranes — we coordinate cladding, insulation, air/vapour barriers, and more to ensure your waterproofing system is part of a larger, high-performance shell.
- Z-bar cladding systems & ACM panel substructures
- Rigid & semi-rigid insulation boards
- Blueskin, Soprema, and Naturaseal AVB systems
- TPO, EPDM, BUR, and flat roof waterproofing systems
- One contractor. One scope. Total protection.
SealCo provides one of the most competitive warranty programs in the commercial envelope industry:
- 10-Year Workmanship Warranty on qualifying commercial waterproofing installations
- Up to 25-Year Manufacturer Warranty on membrane systems (Henry, Soprema, Naturaseal, etc.)
- Warranty-backed detailing at tie-ins, penetrations, and transitions
All systems are installed to Ontario Building Code (OBC) and product-specific manufacturer guidelines, and SealCo can work with consultants to develop custom QA/QC packages where required.
Envelope Integration ExpertsWe go beyond the membrane to ensure every tie-in and transition is sealed to last.- Trusted by Industry TitansWe’ve performed waterproofing scopes for Triumph, Bothwell-Accurate, Flynn, and more.
- COR-Ready Safety CultureOur safety program meets the standards for ICI job sites — without compromising productivity.
- Built for ComplexityWe specialize in high-detail, high-exposure environments where quality matters most.
- General Contractors & Construction Managers
- Developers & Real Estate Investment Trusts
- Public Sector & Institutional Projects
- Custom Home Builders (Podiums, Multifamily)
- Engineers, Architects, and Consultants
Building your visions. Additionally, Creating reality.
From custom homes to commercial high-rises, SealCo delivers envelope solutions that keep your project moving forward. Our skilled, detail-oriented team seals every structure with precision and speed — giving builders, developers, and homeowners the confidence that their property is protected, efficient, and built to perform.
SealCo Construction Group is a trusted leader in complete building envelope solutions for commercial, residential, and industrial projects. Our integrated, system-wide approach ensures lasting protection, structural efficiency, and high-performance results — shielding buildings from environmental stressors while meeting or exceeding today’s most demanding envelope standards.