Great Northern Home Exteriors Inc.

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Great Northern Home Exteriors Inc. Trusted exterior renovation specialists serving Niagara since 2009. Great Northern is an industry leader in home improvement.

Professional window, door, siding and eavestrough installation delivered with clean workmanship and long-term performance in mind. With over two decades of experience, we specialize in sales and installation of top quality replacement windows, steel entry doors, and vinyl siding. If you need help anything from your home window repairs or vinyl siding colors please contact us. We are committed to achieving unparalleled customer satisfaction, and our services will be performed with precision, professionalism, and punctuality. Great Northern Home Exteriors are proud members of the BBB, SAWDAC and the Chamber of Commerce

A fresh new look for this St. Catharines home.Our crew installed a Iron Ore Entry Door with two sidelites, new aluminum ...
10/17/2026

A fresh new look for this St. Catharines home.

Our crew installed a Iron Ore Entry Door with two sidelites, new aluminum shutters, and board-and-batten siding under the front window. Together, these updates give the entrance and front exterior a coordinated refresh.

We’ve included before photos alongside the completed work so you can see the transformation.

Considering new entry doors for your home? Contact Great Northern Home Exteriors for a free, no-pressure written estimate.

289-362-2644
https://gnhe.ca/st-catharines-entry-doors/

Mobile Home Window Replacement at Sherkston Shores!Another window installation completed by Great Northern Home Exterior...
10/14/2026

Mobile Home Window Replacement at Sherkston Shores!

Another window installation completed by Great Northern Home Exteriors Inc.!

Our team recently replaced windows in a mobile home at Sherkston Shores, giving the home a refreshed appearance inside and out.

The new windows feature clean interior finishing, with dark exterior that complements the home’s siding.

Take a look at the before-and-after photos to see the transformation!

Great Northern Home Exteriors has been serving the Niagara Region since 2009, providing professional window replacement and installation.

📞 289-362-2644

🌐 https://gnhe.ca/windows/

Great Northern Home Exteriors Inc.

Fresh Eavestrough & Fascia Installation in Niagara Falls!Another exterior project completed by Great Northern Home Exter...
10/11/2026

Fresh Eavestrough & Fascia Installation in Niagara Falls!

Another exterior project completed by Great Northern Home Exteriors Inc.!

Our installation crew recently finished new white eavestrough and fascia on this Niagara Falls home, creating a clean, coordinated finish along the roofline.

Properly installed eavestrough helps direct rainwater away from your home, while fascia provides a finished appearance along the roof edge.

Whether you’re replacing aging eavestrough or upgrading your home’s exterior, we’re here to help.

Serving Niagara Falls and the Niagara Region since 2009.

🌐 https://gnhe.ca/eavestrough/

Replacing your windows doesn’t have to mean losing the details that give your home character.This installation by Great ...
10/07/2026

Replacing your windows doesn’t have to mean losing the details that give your home character.

This installation by Great Northern Home Exteriors pairs an arched upper window with an awning window below. The white framing follows the existing stucco opening, preserving the shape while providing ventilation through the lower window.

Have an unusual window shape? We can help you explore replacement options that suit your home.

Call 289-362-2644 for a free written estimate.
https://gnhe.ca/windows/

Black outside, white inside—a sharp combination for this Dorplex steel entry door installed by Great Northern Home Exter...
10/04/2026

Black outside, white inside—a sharp combination for this Dorplex steel entry door installed by Great Northern Home Exteriors.

Decorative glass brings light into the entrance, while the black hardware complements both sides of the door. Swipe through for the exterior and interior views.

Thinking about replacing your entry door? We offer free written estimates and no-pressure sales throughout the Niagara Region.

A finished bay window replacement in Smithville, shown from both sides.The wide centre pane keeps the view open, while t...
09/30/2026

A finished bay window replacement in Smithville, shown from both sides.

The wide centre pane keeps the view open, while the angled side windows give the bay its shape. The white exterior finishing ties it into the home’s siding.

Planning a window replacement in Smithville? See our local window page or message us for a free written estimate: https://gnhe.ca/smithville-windows/

Here’s a closer look at a bow window installation by Great Northern Home Exteriors. The five-panel design creates a wide...
09/27/2026

Here’s a closer look at a bow window installation by Great Northern Home Exteriors. The five-panel design creates a wide view, while the double-hung flankers add ventilation. We finished the exterior in white to suit the home’s brickwork.

Thinking about replacing a front window? Send us a message or take a look at our window options: https://gnhe.ca/st-catharines-windows/

A complete exterior transformation in Welland.Our team installed black replacement windows throughout the entire home, i...
09/23/2026

A complete exterior transformation in Welland.

Our team installed black replacement windows throughout the entire home, including a new black bow window with matching black siding above it. We also installed Mitten vinyl siding in Hemlock and completed the exterior with black eavestrough, fascia, and soffit.

The combination of Hemlock siding, black windows, and black roof-edge finishes works extremely well with the home’s original brick. Every part of the exterior now looks coordinated instead of being treated as a separate project.

Windows, siding, eavestrough, fascia, and soffit—all completed by Great Northern Home Exteriors.

For a free written estimate:
289-362-2644
gnhe.ca

A little more involved than just changing the windows.We recently completed this window and patio door project in St. Ca...
09/20/2026

A little more involved than just changing the windows.

We recently completed this window and patio door project in St. Catharines.

Along with several replacement windows, the homeowners had a new 8-foot patio door installed. The existing step wasn’t something we wanted to simply work around, so our crew rebuilt it as part of finishing the patio-door area properly.

That’s one of the things we like about these projects — every home is different, and sometimes doing the job properly means taking care of the details around the new window or door too.

The white windows and patio door look fantastic against this brick.

If you’re considering replacement windows or a patio door in St. Catharines, we’d be happy to take a look.

Address

Saint Catharines, ON

Opening Hours

Monday 9am - 8pm
Tuesday 9am - 8pm
Wednesday 9am - 8pm
Thursday 9am - 8pm
Friday 9am - 8pm
Saturday 9am - 1pm

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