Built to Perform — Commercial General Contracting You Can Count On
At SealCo Construction Group, we provide commercial general construction services with a strong focus on full building envelope scopes, structural upgrades, and exterior execution. Whether leading a complete build or executing complex sub-trades under a construction manager, our crews deliver precision, compliance, and professionalism from ground prep to final finish.
From ICI buildings to multifamily podiums, we serve Ontario’s most demanding contractors, developers, and owners — delivering scopes that are efficient, durable, and designed to last.
Building Envelope Scopes & Integration
Commercial Envelope Retrofits
Structural Framing & Substructure Construction
Excavation & Site Preparation
SealCo is not a typical GC — we specialize in building envelope construction, meaning our crews handle multiple integrated scopes including:
- Waterproofing (below grade & elevated slab)
- Air & Vapour Barriers (Blueskin, Soprema, Naturaseal)
- Insulation (rigid, semi-rigid, and spray foam coordination)
- Z-bar and hat channel substructure install
- Cladding systems (ACM, IMP, phenolic, corrugated, aluminum plate)
- Flat Roofing (TPO, EPDM, Mod-Bit, BUR)
- Parapet capping and roof edge detailing
Minimize trade overlap. Maximize system performance. SealCo brings accountability to the full envelope.
- COR-Ready Safety Program in alignment with Ontario’s ICI jobsite standards
- 10-Year Workmanship Warranty on qualifying scopes
- Manufacturer warranties honored on all AVB, roofing, and cladding systems
- Daily safety paperwork, toolbox talks, and documented inspections
- Option for QA/QC documentation and consultant signoff packages
Envelope Trade Expertise In-House- Responsive to GC Schedules & Site Conditions
- Safety & Documentation Ready for ICI Work
- Trusted by Triumph, Bothwell, Flynn & More
- Workforce Scalable Across Ontario & Atlantic Canada
- General Contractors & Construction Managers
- Design-Build Firms & Consultants
- Institutional & Government Clients
- Developers & REITs
- Engineers, Architects & Owners Reps
- Industrial/Commercial Facility Managers
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.