SealCo | Waterproofing | Cladding

Professional & Expert

Leaders in Full Building Envelope Solutions

WATERPROOFING | CLADDING | ROOFING | GENERAL CONSTRUCTION

Proudly Serving the GTA, Ontario, and Projects Across North America

FIND THE RIGHT SOLUTION FOR YOU

15+

Years of
Experience

Who we are

15+ Years of Building Envelope Expertise

We specialize in comprehensive envelope systems that protect, enhance, and extend the life of your building. From advanced waterproofing and architectural cladding to high-performance roofing, air/vapour barriers, and envelope-integrated construction — SealCo delivers complete, coordinated solutions with unmatched precision and reliability.

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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.

About Us

Our Partners

Trusted by Leading Construction and Property Management Firms

Proven Track Record of Excellence

Over 15 Years of Basement Waterproofing, Air & Vapour Barriers, Exterior Cladding, Roofing Systems & General Construction the GTA

1M+

Square Feet Covered

150+

projects completed

+15

years experience

Seamless System Management

We deliver full envelope solutions — unified and optimized

SealCo eliminates fragmented scopes. Our team integrates all exterior systems to work as one high-performing unit — from foundation to facade.

End-to-End Integration

Coordinating waterproofing, cladding, roofing, and insulation to function in harmony — maximizing durability and energy efficiency.

Modern Construction Excellence

Tradition meets technology in every project we touch

Our crews combine decades of skilled trade experience with advanced materials, digital tools, and detail-first installation techniques.

Future-Proof Building Techniques

Bringing precision to every edge and elevation — from laser-guided layout to sustainable finishes that outperform industry standards.

Projects That Scale

Consistent quality from coast to coast

Whether it's a tower in downtown Toronto or a specialized build in Halifax, SealCo brings agile teams and trusted systems to every site.

Canada-Wide Impact

Proven delivery across diverse geographies and climates — with centralized management and locally embedded teams.

Safety First, Always

We build to protect — people, places, and performance

Our COR-ready safety program exceeds Ontario standards, prioritizing jobsite safety with daily protocols and leadership accountability.

Certified Jobsite Safety

Empowering teams with rigorous safety training, PPE standards, and real-time oversight to eliminate risks before they arise.

Built on Relationships

We don’t just subcontract — we partner for performance

SealCo is the go-to envelope specialist for Canada’s leading builders, collaborating early and solving challenges before they start.

Strategic Project Collaboration

Trusted by developers like Triumph and Flynn — delivering envelope scopes that align with timelines, budgets, and excellence standards.

Your Peace of Mind is Our Priority! Plus, reliable solutions & exceptional service.

Experience the strength of a complete building envelope system — engineered to resist moisture, enhance energy efficiency, and extend the life of your structure. From foundation waterproofing to final finishes, SealCo ensures every layer works together to deliver lasting protection and performance.

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What we offer

Safe, fast, and high-quality services

Waterproofing

Discover the ultimate solution for a dry and protected basement with our premier Basement Waterproofing service. Moreover, we specialize in delivering high-quality and reliable waterproofing solutions that surpass industry standards and provide long-lasting results.

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Cladding & Panel Systems

Elevate your building’s exterior with high-performance cladding. Our team installs ACM and metal panels, rainscreens, Z-bar subgirts, and detailed fascia/soffit finishes — blending architectural beauty with durability, energy efficiency, and weather resistance.

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Roofing

From TPO and EPDM to mod-bit and BUR systems, we engineer custom flat and low-slope roof assemblies built for longevity and high performance. Our roofing solutions are tailored for commercial demands — weather-tight, code-compliant, and maintenance-smart.

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General Construction

We go beyond envelopes — providing envelope restoration, structural tie-ins, carpentry, and remediation consulting. Whether it’s a new build or retrofit, our experienced crews ensure seamless integration and lasting performance across every project scope.

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Our Portfolio

Engineering your dreams with us.

Anishnawbe Health Toronto (AHT)

Concord Park Place Condominium Complex

Durham College Bio-Digester Building

Galleria on the Park

Humber Meadows Long-Term Care Facility

Trillium Long-Term Care Facility

Our Partners

Meet our esteemed partners who contribute to the success of our company with their expertise and commitment to excellence. Additionally, they play a pivotal role in ensuring our projects meet the highest standards of quality and innovation.

SealCo Construction Group Inc. is a leader in full building envelope solutions — specializing in waterproofing, cladding, roofing, air/vapour barriers, and general construction. Whether you're managing a large-scale commercial build or upgrading a residential property, our team delivers precision, professionalism, and performance at every stage. With a reputation built on quality craftsmanship and dependable execution, we integrate all exterior systems to protect, enhance, and extend the life of your structure. From start to finish, SealCo is your trusted partner for envelope integrity, project efficiency, and long-term value.