Home exterior with replacement casement windows and black exterior capping installed by Great Northern Home Exteriors

About Great Northern Home Exteriors

A Niagara Exterior Renovation Company Since 2009

Great Northern Home Exteriors installs replacement windows, doors, siding and eavestrough for homeowners throughout Niagara. We focus on clear recommendations, proper installation and straightforward service from the first estimate through project completion.

Serving Niagara Since 2009
Windows • Doors • Siding • Eavestrough
5-Year Workmanship Warranty

Our Story

The People Behind GNHE

Great Northern Home Exteriors is owned and led by Clodette McNea, whose experience in the home-improvement industry began long before GNHE opened its doors in 2009.

Clodette began learning the business at a young age, including time spent around active job sites where she saw how much proper measuring, installation and communication matter to the finished result.

When Great Northern Home Exteriors was established, the approach was straightforward: give homeowners clear information, recommend products that make sense for their homes and pay attention to the installation details that affect how those products perform.

That same approach still guides the company today. GNHE works with homeowners on replacement windows, doors, siding and eavestrough, with an emphasis on practical recommendations and reliable follow-through.

Established Serving homeowners since 2009
Locally Operated Based in St. Catharines
Home Exterior Focus Windows, doors, siding and eavestrough

How We Work

What Homeowners Can Expect From GNHE

Exterior renovations involve more than choosing a product. The estimate, measurements, preparation, installation and follow-up all affect how smoothly the project goes.

Clear Recommendations

We explain the available options, what each one changes and where spending more may or may not make sense for your home.

Written Estimates

Pricing and project details are discussed before work begins so you understand what is included in the job.

Accurate Measuring & Planning

Openings and exterior conditions are reviewed before products are ordered so the installation can be planned properly.

Careful Installation

Installation details such as preparation, sealing, flashing, insulation and finishing are handled according to the needs of the project.

Job-Site Cleanup

Debris and removed materials are cleaned up as part of the project, with attention paid to leaving the work area neat when the job is finished.

Follow-Up Support

If you have questions after the installation, GNHE remains available to help with workmanship or product-related concerns.

The goal is simple: give you enough information to make a good decision, then complete the work carefully and stand behind the installation.

What We Install

Exterior Products GNHE Works With

GNHE focuses on a defined group of exterior renovation products so homeowners can get practical guidance on the product, installation method and finishing details that matter for each project.

Replacement Windows

KV Custom replacement windows in a range of operating styles, with both full-frame and retrofit installation options depending on the existing opening.

Explore Windows →

Entry & Patio Doors

Steel and fiberglass entry doors plus sliding patio doors, with options for glass, hardware, exterior finishing and weather-sealing.

Explore Doors →

Vinyl Siding

Mitten vinyl siding in horizontal, vertical and board-and-batten profiles, with preparation, insulation and trim considered as part of the wall system.

Explore Siding →

Eavestrough, Fascia & Soffit

Aluminum eavestrough, fascia and soffit systems, with gutter protection available where it makes sense for the home and surrounding conditions.

Explore Eavestrough →
GNHE installer working on a replacement window installation

Installation & Accountability

The Work Behind the Finished Product Matters

Windows, doors and exterior products only perform as intended when the installation is planned and completed properly. GNHE pays attention to the details that are easy to overlook once the project is finished.

Preparation Before Installation

Existing conditions are reviewed so the opening or exterior can be prepared for the installation method being used.

Details That Affect Performance

Sealing, insulation, flashing and exterior finishing are handled as part of the installation.

Workmanship Coverage

GNHE provides a 5-year workmanship warranty covering installation-related issues on the work we perform.

Support After the Job

Homeowners can contact GNHE directly if a workmanship concern or product question comes up after installation.

Manufacturer product warranties and GNHE workmanship coverage are separate and have their own terms.

Read the GNHE Workmanship Warranty →

Coverage & Accountability

Protection That Extends Beyond Installation Day

Homeowners should know who is responsible for the work being done at their home and what happens if an installation-related problem comes up later. GNHE maintains the business coverage required for our work and provides separate workmanship protection on our installations.

Liability Insurance

GNHE carries liability insurance for the exterior renovation work performed at our customers' homes.

WSIB Good Standing

Great Northern Home Exteriors is registered and in good standing with Ontario's Workplace Safety and Insurance Board.

5-Year Workmanship Warranty

GNHE provides five years of coverage for installation-related workmanship under the terms of our workmanship warranty.

Product and workmanship warranties are different. Product warranties are provided by the applicable manufacturer. GNHE's workmanship warranty separately covers qualifying issues related to our installation.

Read Our Workmanship Warranty →

Where We Work

Serving Homeowners Across Niagara

Great Northern Home Exteriors works with homeowners throughout the Niagara Region and surrounding communities on replacement windows, doors, siding and eavestrough projects.

Niagara Region

Our work regularly takes us throughout St. Catharines, Niagara Falls, Welland, Fort Erie, Port Colborne, Pelham, Thorold, Niagara-on-the-Lake and neighbouring Niagara communities.

Surrounding Communities

GNHE also serves selected communities beyond the core Niagara area, including locations toward Grimsby, Smithville, Beamsville and Dunnville depending on the project.

Talk With GNHE

Ready to Talk About Your Project?

If you’re considering replacement windows, a new door, siding or eavestrough work, contact GNHE to discuss the project. We can review the options, answer your questions and provide a clear written estimate.

Request a Free Estimate → Call 289-362-2644

Serving homeowners throughout Niagara and surrounding communities.

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