Great Northern Home Exteriors Inc.

Great Northern Home Exteriors Inc. has been proudly serving homeowners across Niagara since 2009. We specialize in professional installation of replacement windows, entry doors, siding, eavestroughs, soffit, and fascia. As an authorized dealer of KV Custom Windows and trusted brands like Dorplex and Royal Siding, we deliver Canadian-made products backed by strong warranties.

Our team is fully insured (WSIB coverage) and committed to quality craftsmanship, energy efficiency, and lasting value. Whether you need a full-frame window replacement, a new steel or patio door, or complete siding and eavestrough installation, you can count on us for expert service and no-pressure sales.

We’re proud to be a locally owned company in St. Catharines, Ontario, dedicated to enhancing homes throughout Niagara Falls, St. Catharines, Welland, Port Colborne, Niagara-on-the-Lake, and Fort Erie.

📞 Contact us today for a free, no-obligation quote and discover why Niagara homeowners have trusted Great Northern Home Exteriors for over 15 years.