Trusted by Builders.
Backed by Craft.

Giancola Aluminum Contractors Inc. is a VSI-certified siding contractor with 50 years of experience in vinyl siding, aluminum siding, fiber cement siding, and more. We serve homebuilders across Ontario with complete exterior systems, soffit and fascia, eavestroughs, gutters, aluminum composite material, and custom railings manufactured and installed with precision.

We partner with many of Canada’s top homebuilders, supporting more than 6,000 new homes each year. Our work is trusted because we focus on what matters: dependable service, lasting quality, and strong relationships.

+50

Years

in business

6,000

New Homes

every year

50,000

Square foot

state-of-the-art facility

Precision-Crafted in Our Ontario Facility

Every aluminum product is made in-house at our 50,000 square foot siding fabrication facility in Ontario, giving us full control over quality. We are proud members of OHBA, RSCA, and BILD, and our commitment to high standards has earned us industry recognition, including the Vinyl Siding Institute award for Best New Construction.

Consistent Quality. Proven Results.

We are a company built on trust, craftsmanship, and consistency. Our team is known for being responsive, collaborative, and committed to doing things right. That’s why we remain the first-choice siding contractor for new construction across the GTA and beyond.

VSI awards for best new construction badge

Meet the Team Behind
Giancola Aluminum

At Giancola Aluminum Contractors Inc., we take pride in the quality of our products and services. Our team has decades of combined experience with aluminum and vinyl, and we treat every project as a priority.

As one of Ontario’s most respected service providers, we maintain a qualified staff of experts in order to give every project the attention that it needs for excellent results. Every member of our staff has a job to do, and by working together, we provide dependable services for thousands of homes each year.

We back up our services with the best warranties available, and our management works quickly to address potential issues before they affect your project. Whether you use Giancola Aluminum for a single home or you work with us on a regular basis for large residential projects, you’ll always receive dedicated attention from our team.

Work with A Trusted Leader!