Dunnville Windows
Window Replacement That Improves Comfort and Cuts Drafts
Upgrade to energy-efficient, long-lasting windows installed with clean workmanship and careful sealing. Proudly serving Haldimand County homeowners since 2009 with no-pressure estimates.
- ✅ Trusted in Niagara since 2009
- ✅ Clean workmanship & careful sealing
- ✅ No-pressure estimates
Get a Free Window Quote for Your Home
Thinking about replacing your windows? We keep the process straightforward with clear, on-site quotes tailored to your home’s needs. No pressure and no hidden cost — just helpful advice and options that make sense for your budget and goals. We serve homeowners throughout Dunnville and across Haldimand County, recommending window solutions that fit our local weather and day-to-day comfort.
- ✓Serving local homeowners for over 15 years
- ✓Retrofit or full-frame installation available
- ✓Transparent pricing with no surprises
Why Local Homeowners Trust Great Northern
Since 2009, Great Northern Home Exteriors has helped homeowners upgrade their windows using quality, Canadian-made products installed by experienced in house crews. From family homes near Centennial Park and Broad Street to properties closer to the Grand River, our work is focused on improving comfort, curb appeal, and energy efficiency — all backed by warranties that actually protect your investment.
Built for Local Weather Conditions
Windows designed to handle cold winters and humid summers, helping reduce heating and cooling costs while keeping your home comfortable year-round.
Installation Options That Fit Your Home
Choose the approach that works best for your space and budget — from full-frame replacements to cost effective retrofit inserts.
Styles That Match Your Home’s Look
Casement, slider, picture, bay, bow, and specialty shapes — all available in modern colours and durable finishes that complement your home’s character.
Experience With Local Homes
Backed by over 15 years of hands-on experience, we’ve worked on a wide range of homes — from river-adjacent properties and downtown streets to quieter rural settings.
Warranty Coverage You Can Rely On
Every installation is backed by lifetime product coverage and our 5-year workmanship guarantee, so your investment stays protected long after installation day.
Trusted by Local Homeowners
Our reputation is built on referrals and repeat customers. Homeowners value our friendly crews, precise measurements, and the long-term performance of every installation. From clean aluminum capping to careful job-site clean-up, we take pride in workmanship that leaves your home looking finished and well cared for.
Ready to Improve Your Home?
Upgrade your space with windows that deliver lasting durability, everyday comfort, and real energy savings. Contact Great Northern Home Exteriors for a free, no-obligation quote and get clear guidance from a team that puts quality workmanship first.
Ontario Window & Door Rebate Program
Receive up to $100 rebate for each ENERGY STAR® certified window or door (opening), including double- and triple-pane models. Note: Replacing existing ENERGY STAR-certified products does not qualify.
- Homeowners must replace at least three windows or one door or one sliding door to qualify.
- Homeowners may receive up to $600 toward the required home energy assessment, reimbursed after the final audit.
- Eligible homes must use Enbridge Natural Gas or electric heating connected to the Ontario grid.
- A minimum of two energy upgrades is required (windows, doors, insulation, air sealing, etc.).
- Keep all ENERGY STAR® stickers on your new windows and doors until the final audit is complete.
Windows Built for Comfort and Long-Term Performance
Aging or inefficient windows don’t just affect appearance they can also lead to higher heating and cooling costs. For more than a decade, Great Northern Home Exteriors has helped homeowners upgrade to windows that balance comfort, energy efficiency, and lasting performance across changing seasons.
- ✓Bay and bow windows that increase natural light and enhance interior style
- ✓Full-frame installations for improved insulation and structural strength
- ✓Cost-effective retrofit options matched to your home’s layout
- ✓Careful capping and trim work for a clean, finished appearance
- ✓Clear, upfront pricing with no surprises
From established neighbourhoods near the Grand River to rural properties on the outskirts, our installations are designed for reliable, year-after-year performance — helping keep homes more comfortable during cold winter winds and humid summer conditions.
Professional Installation for Every Home Style
At Great Northern Home Exteriors, our in-house crews complete both retrofit installations and full-frame window replacements with careful attention to detail. Each project is handled from start to finish by experienced installers, delivering energy-efficient results, clean finishes, and improvements you can feel every day.
Retrofit (Insert) Window Installation
New windows are installed directly into the existing frames, making this approach cost-effective and minimally invasive. Interior finishes are completed with clean cove trim, while the exterior is sealed using durable aluminum capping for long-lasting protection.
Full-Frame (Brick-to-Brick) Window Installation
The entire window unit — including frames, casings, and jamb extensions — is carefully removed and replaced. This method delivers the highest level of energy efficiency and allows for complete insulation around the opening. Exterior finishing can include new vinyl brickmould for a clean, modern appearance.
Whichever installation method you choose, our team delivers precise workmanship, careful finishing, and long lasting results that improve both comfort and curb appeal. We’ve completed installations across a wide range of home — from quiet residential streets near downtown Dunnville to rural properties throughout Haldimand County — ensuring each project receives the right approach for its unique structure.
Window Pricing That’s Clear and Straightforward
Every home is different, and so is every window installation. At Great Northern Home Exteriors, we provide customized solutions designed around your home’s layout, window openings, and long-term goals. Properties near the Grand River, within the downtown core, or on more rural lots often have unique framing depths and insulation needs — details our team reviews during an on site visit to ensure accurate, transparent pricing with no surprises.
- ✓High-performance glass packages crafted to boost comfort in every season
- ✓Custom grille and muntin options that complement your home’s design
- ✓Durable exterior colors and finishes selected to enhance curb appeal
- ✓Made-to-order window sizes and specialty shapes for a precise, custom fit
- ✓Retrofit and full-frame installation options tailored to your renovation goals
When our team visits your home, we’ll provide a clear, on-site quote with transparent pricing — no hidden fees and no surprises. Our goal is to make the process simple and stress-free, so you can feel confident in your choices and look forward to the results of your window upgrade.
Window Guidance That Puts You First
At Great Northern Home Exteriors, exceptional service is always the priority. Homeowners deserve to feel informed and comfortable when choosing new windows — never rushed or pressured.
Whether you’re replacing a single window or upgrading your entire home, our team focuses on education, transparency, and clear options. We’ll explain the differences between retrofit and full-frame installations, outline the benefits of each, and provide straightforward pricing so you can choose what fits your home and budget.
With Great Northern, you’ll receive honest, knowledgeable guidance — no high-pressure sales tactics, just support designed to help you make the right decision for your family and your home.
Areas We Serve Around Dunnville
Our team provides professional window replacement services throughout Dunnville and surrounding communities in Haldimand County. From established neighbourhoods near the Grand River to quieter rural properties, we tailor each installation to the home’s structure, exposure, and insulation needs.
- Downtown Dunnville
- Grand River Road area
- Byng
- Moulton Station
- Canfield
- Rural Haldimand County
Windows Built for Changing Seasons
Homes in the area experience a wide range of weather — from
icy winter winds along the Grand River to
humid, sun-filled summer days. The right windows need to handle both,
keeping your home warmer during cold snaps and more comfortable when the heat sets in.
Choosing energy-efficient windows helps stabilize indoor temperatures
year-round while reducing strain on your heating and cooling systems.
At Great Northern Home Exteriors, we recommend window solutions designed for
local climate conditions, delivering
reliable insulation,
long-term durability, and
consistent performance no matter what the forecast brings.
Windows Built for Comfort and Long-Term Performance
Aging or inefficient windows don’t just affect how a home looks — they can also lead to higher heating and cooling costs. Since 2009, Great Northern Home Exteriors has helped homeowners upgrade to windows that balance comfort, energy efficiency, and lasting performance.
- ✓Bay and bow windows that increase natural light and enhance interior style
- ✓Full-frame installations for improved insulation and long-term strength
- ✓Cost-effective retrofit options tailored to your home’s layout
- ✓Careful capping and trim work for a clean, polished finish
- ✓Clear, upfront pricing with no hidden fees
From quiet residential streets near the Grand River to rural properties on the outskirts, our installations are designed for reliable, year-round performance, helping homes stay comfortable through cold winters and humid summer conditions.
Casement Windows
Casement windows are one of the most energy-efficient styles we offer. Hinged at the side, they open outward to bring in fresh airflow and bright natural light — ideal for spots that are harder to reach, such as above kitchen sinks or countertops.
- ✓Multi-chambered frames and Low-E glass for excellent year-round efficiency
- ✓Smooth crank operation with durable hardware built to last
- ✓Compression seals that lock out drafts and boost insulation
- ✓Customizable exterior and interior color options for a clean, modern look
- ✓Opens wide for easy interior cleaning
With KV casement windows, homeowners can enjoy a combination of ventilation, style, and energy efficiency — a reliable upgrade that keeps your home comfortable through every season.

Picture Windows
Picture windows are a great choice when you want to bring in maximum natural light and enjoy wide, uninterrupted views. Their large, fixed panes don’t open, making them extremely energy-efficient while adding a clean, modern focal point to any room.
- ✓Expansive glass for wide, unobstructed views
- ✓Brightens interiors with an abundance of natural light
- ✓Fixed-frame design offers excellent energy efficiency
- ✓Pairs beautifully with casement or slider windows for added ventilation
- ✓Available in a variety of custom sizes and shapes
With KV picture windows, you can enjoy impressive views, natural light, and long-term performance — all installed with the expert care of the Great Northern team.

Sliding Windows
Sliding windows move smoothly along a horizontal track, offering a space-saving design and a clean, modern look. They’re great for spots where an outward-opening sash isn’t practical, such as walkways, decks, or compact rooms.
- ✓Reinforced tracks for a smooth, reliable glide
- ✓Space-efficient design with no inward or outward swing
- ✓Tilt-in sashes for easy interior cleaning
- ✓Energy-efficient vinyl frames with advanced Low-E glass
- ✓Designed to bring in plenty of natural light
Sliding windows are a practical choice for those who want bright interiors, smooth operation, and dependable year-round performance.

Double Hung Windows
A timeless and versatile option, double hung windows blend traditional styling with modern performance. Both sashes slide vertically, giving you flexible ventilation and the convenience of easy cleaning from inside your home.
- ✓Operable top and bottom sashes for adjustable airflow
- ✓Tilt-in design for safe, simple indoor cleaning
- ✓Insulated vinyl frames paired with advanced Low-E glass
- ✓Smooth-operating, durable hardware for long-lasting performance
- ✓Classic appearance that suits a wide range of architectural styles
Double hung windows offer a balanced mix of convenience, curb appeal, and energy efficiency — making them a dependable choice for homeowners focused on comfort and long-term value.

Bay & Bow Windows
Bay and bow windows extend outward from your home, creating extra usable space inside while bringing in plenty of natural light. Both styles add architectural interest and provide a wide, open view of the outdoors.
- ✓Creates a cozy area for seating, storage, or décor
- ✓Multiple glass panels bring in more natural light
- ✓Energy-efficient insulated frames with advanced Low-E glass
- ✓Customizable angles, sizes, and finishes to suit your home
- ✓Enhances curb appeal with a distinctive architectural feature
Bay and bow windows create a timeless focal point that blends extra space, natural light, and long-term energy efficiency.


Awning Windows
Awning windows are hinged at the top and open outward, allowing for fresh ventilation even during light rain. Their design makes them a practical choice for spaces where you want airflow and privacy together, such as bathrooms, kitchens, or higher wall placements.
- ✓Top-hinged design keeps rain out while letting air in
- ✓Smooth crank operation for easy, reliable use
- ✓Energy-efficient vinyl frames with advanced Low-E glass
- ✓Provides privacy while still allowing natural airflow
- ✓Ideal for bathrooms, kitchens, or elevated wall openings
Awning windows offer a dependable mix of ventilation and energy efficiency, making them a versatile option for year-round comfort.

Find the Right Window Style for Year-Round Comfort
Modern vinyl windows are built to deliver dependable energy efficiency, durability, and clean curb appeal. With a variety of styles and features to choose from, you can select the option that best supports the comfort and character of your home.
Whether you’re looking to brighten your living spaces, improve airflow, or reduce energy costs, there’s a window style suited to every need. When you’re ready, explore how simple it is to get started with a free, no-obligation quote and see the difference new windows can make for your home.
Dunnville Window Replacement FAQ
How much does it cost to replace windows in Dunnville?
Window replacement costs depend on the window style, size, glass package, and whether you choose retrofit or full-frame installation. Because every home is different, we provide clear, on-site quotes with transparent pricing. For general community information, visit Haldimand County.
Do I need a building permit to replace my windows in Dunnville?
Most standard window replacements do not require a building permit. However, enlarging an opening or altering structural framing may require approval. Refer to Haldimand County Building Services for full permit details.
What’s the difference between retrofit and full-frame installation?
Retrofit installation uses your existing frames for a more cost-effective upgrade with less disruption. Full-frame replacement removes everything down to the studs, allowing for maximum insulation, a completely new frame, and improved long-term performance. Learn more from Natural Resources Canada.
How long does a window installation take?
Most projects are completed in a single day. Larger homes or custom-sized units may require additional time, but our installers work efficiently to keep disruption minimal.
Proudly Serving Communities Across Niagara
Dunnville Windows (You’re Here)
Looking for more than windows in Dunnville? We also provide Doors, Siding, and Eavestrough for local homeowners.



