Get Your Free Niagara-on-the-Lake Window Quote
Ready to transform your home with windows designed for lasting comfort, energy savings, and curb appeal?
Tell us about your project, and our Niagara-on-the-Lake team will provide a clear, on-site quote — no pressure, no hidden fees.
- ✓Proudly serving Niagara Region homeowners since 2009
- ✓Retrofit and full-frame installation options available
- ✓Upfront, transparent pricing with no surprises
Why Homeowners Choose Our Windows
Stay cozy through lake-effect winters and cool during humid summers with
Canadian-made KV Custom Windows — built for Niagara’s unique climate.
Whether you’re restoring a heritage home or updating a newer
build, our experts offer both full-frame replacements and efficient retrofit solutions tailored to your property.
From charming heritage houses to contemporary lakefront builds, choose from casement, slider, picture, bay, bow, or custom window styles that elevate curb appeal.
Proudly serving Niagara-on-the-Lake and the surrounding area for over 15 years — from Old Town to Virgil, St. Davids, and beyond.
Enjoy peace of mind with 25-year product protection and our
5-year workmanship warranty — dependable coverage trusted by homeowners.
Your Trusted Local Window Specialists
At Great Northern Home Exteriors, we take pride in understanding the distinctive character of Niagara-on-the-Lake homes — from heritage cottages in Old Town to newer builds in Garrison Village and St. Davids.
Our experienced team ensures every window installation complements your home’s architecture and the town’s timeless charm.
Let’s Begin Your Upgrade
Transform your home with windows that deliver lasting comfort, energy savings, and curb appeal.
Contact Great Northern Home Exteriors for your free, no-pressure quote
today and experience the craftsmanship and care trusted across the Niagara Region.
Ontario Window & Door Rebate Program
Note: Replacing existing ENERGY STAR-certified products does not qualify.
Eligibility Requirements
Home Energy Assessment
Qualification
To be eligible, homeowners must complete at least two energy upgrades — such as insulation, new windows or doors, air sealing, or a hot water heat pump.
Important Note
Windows That Elevate Comfort and Style
Older windows can make your home feel drafty and dated — while driving up heating and cooling costs.
Since 2009, Great Northern Home Exteriors has helped local homeowners upgrade to energy-efficient, beautifully crafted windows that stand the test of time.
- ✓Bay and bow windows that bring in natural light and
scenic views - ✓Full-frame installations for top-tier efficiency and long-term performance
- ✓Retrofit options for a quicker, more cost-effective transformation
- ✓Precision capping and finishing for a clean, professional look
- ✓Upfront pricing and transparent communication — no surprises
Whether you’re in Old Town, Virgil, or along Lakeshore Road, our experienced installers deliver window replacements that enhance comfort, style, and energy savings — all backed by workmanship you can trust.
Full Frame & Retrofit Installations
Every installation is handled by experienced professionals who understand the craftsmanship and care heritage homes deserve. Whether it’s a heritage property near Old Town or a modern build in Virgil, our retrofit and full-frame installations are tailored for long-term comfort, performance, and energy efficiency.
Retrofit (Insert) Installation
This installation method upgrades your home without disturbing existing interior or exterior finishes — ideal for preserving Niagara-on-the-Lake’s distinctive charm. New windows are set into your current frames and finished with elegant Cove trim inside and protective aluminum capping outside, blending efficiency with classic character.
Full-Frame (Brick-to-Brick) Installation
With this complete replacement method, the entire window assembly — frame, casing, and jamb extensions — is removed and rebuilt from the ground up. Perfect for older Niagara-on-the-Lake homes needing full restoration or maximum efficiency, it can include new vinyl brickmould for a refined, modern exterior finish that complements your home’s character.
No matter which installation method you choose, our team takes pride in precise workmanship and lasting quality — enhancing both the comfort and timeless charm of your home.
Discover the Cost of Your Window Upgrade
Every local home has its own character — from heritage cottages to modern lakefront builds — and each requires a customized approach. Our team provides clear, detailed estimates designed to match your home’s style, needs, and budget.
- ✓ Energy-efficient glass options for year-round comfort
- ✓ Decorative muntin and grille choices to match your home’s heritage style
- ✓ Exterior color selections that complement local architecture
- ✓ Custom shapes and dimensions for a seamless look
- ✓ Retrofit or full-frame installation options to fit your goals and budget
When we visit your home, our team provides a detailed, on-site quote with clear, upfront pricing — no surprises or hidden costs. We make the process simple and stress-free, so you can feel confident in your choices and excited to see your home transformed.
No Pressure — Just Honest, Local Guidance
At Great Northern Home Exteriors, our approach is simple — friendly advice, expert knowledge, and zero sales pressure. Homeowners in Niagara-on-the-Lake deserve to feel informed and confident when choosing new windows, not rushed into a decision.
Whether you’re replacing a few windows in your heritage property or upgrading your entire home, we’ll walk you through the options that fit your goals. Our team explains the pros and cons of retrofit versus full-frame installations, offers clear pricing, and helps you make the choice that’s right for your budget and style.
With Great Northern, you’ll always get local expertise and honest guidance — no gimmicks, no pressure, just results you’ll love for years to come.
With Great Northern, you’ll always get expert advice without high-pressure tactics — just honest guidance designed to help you choose what’s best for your home and budget.
Window Styles and Features for Every NOTL Home
We proudly install a wide selection of KV Custom Windows, offering Niagara-on-the-Lake homeowners designs that balance energy efficiency, durability, and timeless style. From classic casements to sleek sliders and stunning bay or bow windows, each style is crafted to enhance comfort, curb appeal, and lasting performance. Explore our most popular options below to find the ideal match for your home’s unique look.
Casement Windows
Casement windows remain one of the most energy-efficient and elegant window styles available. Hinged on the side, they open outward to welcome fresh air and sunlight — ideal for spaces like kitchens, sunrooms, or anywhere you want clear views and easy ventilation.
- ✓ Excellent insulation with multi-chambered vinyl frames and Low-E glass
- ✓ Smooth crank system for effortless operation and ventilation control
- ✓ Compression-seal design keeps out drafts and noise
- ✓ Sleek frames and color options to complement heritage or modern homes
- ✓ Opens wide for easy, safe cleaning from inside your home
With KV Casement windows, homeowners throughout Niagara enjoy a perfect blend of beauty, ventilation, and performance — ideal for the region’s mix of classic and contemporary homes.

Picture Windows
Picture windows are perfect for showcasing the region’s scenic surroundings — from vineyard views to garden landscapes. With large, fixed panes that don’t open, these windows frame the outdoors like a piece of art while maximizing light and efficiency.
- ✓ Expansive glass for panoramic, unobstructed views
- ✓ Fills your home with natural light and warmth
- ✓ Fixed-pane design ensures top-tier energy efficiency
- ✓ Can be paired with casement or slider windows for airflow
- ✓ Custom shapes and dimensions available for any home design
Picture windows make the most of Niagara-on-the-Lake’s beautiful scenery while improving your home’s comfort, light, and energy efficiency year-round.

Sliding Windows
Sliding windows offer a clean, contemporary look and are perfect for spaces where outward-opening sashes aren’t practical. They glide smoothly along reinforced tracks, providing easy operation and excellent ventilation — ideal for patios, walkways, and smaller rooms.
- ✓ Smooth, effortless glide on reinforced tracks
- ✓ Space-saving design — no need for outward clearance
- ✓ Tilt-in sashes make cleaning simple and convenient
- ✓ Energy-efficient vinyl frames with advanced Low-E glass
- ✓ Slim frames allow more sunlight and outdoor views
Sliding windows combine convenience, light, and energy efficiency — a perfect fit for the Niagara region’s mix of heritage and modern homes.

Double Hung Windows
Double hung windows are a timeless favorite, blending classic charm with modern functionality. Both sashes slide vertically to allow customized airflow — ideal for maintaining comfort in every season.
- ✓ Dual-sash design for flexible ventilation and easy use
- ✓ Tilt-in sashes for safe, simple cleaning from indoors
- ✓ Energy-efficient vinyl frames with Low-E glass technology
- ✓ Smooth-gliding hardware for long-lasting performance
- ✓ Classic aesthetic that complements heritage and modern homes alike
Double hung windows deliver versatility, efficiency, and timeless appeal — perfectly suited for Niagara-on-the-Lake’s distinctive home styles.

Bay and Bow Windows
Bay and bow windows bring architectural beauty and natural light to any home. Extending outward from the wall, they create both striking exterior appeal and a cozy, light-filled interior space — perfect for reading nooks or decorative displays.
- ✓ Elegant, eye-catching design that elevates curb appeal
- ✓ Multiple glass panels welcome abundant natural light
- ✓ Creates additional interior space for seating or décor
- ✓ Energy-efficient vinyl frames and Low-E glass for comfort
- ✓ Custom sizes, angles, and finishes to complement your home’s character
Bay and bow windows add timeless beauty and warmth — an ideal feature for Niagara-on-the-Lake’s charming mix of heritage and contemporary homes.


Awning Windows
Awning windows are hinged at the top and open outward, offering reliable ventilation even when it’s raining. Their smart, compact design makes them perfect for smaller spaces or for pairing with larger fixed windows to add light and airflow.
- ✓ Top-hinged design allows airflow — even during light rain
- ✓ Space-saving operation ideal for tighter areas
- ✓ Complements picture or casement windows beautifully
- ✓ Multi-chambered vinyl frames and Low-E glass for energy savings
- ✓ Excellent choice for basements, bathrooms, or smaller rooms
Awning windows deliver dependable ventilation and efficiency — a practical addition for homeowners looking to balance style, comfort, and performance.

Which Windows Are Right for You?
No matter which style you prefer, KV Custom Windows deliver lasting performance, style, and comfort. With professional installation and endless customization options, Niagara-on-the-Lake homeowners can feel confident knowing their new windows will enhance both beauty and energy efficiency.
Next, take the first step toward your upgrade with a free, no-obligation quote.
Niagara-on-the-Lake Window Replacement FAQ
How much does it cost to replace your windows.
The cost varies based on factors like window type, size, glass package, and whether you choose a retrofit or full-frame installation. We provide free, on-site quotes so you know exactly what to expect before work begins.
Do I need a building permit to replace my windows in Niagara-on-the-Lake?
Most standard window replacements do not require a permit. However, if you plan to enlarge an opening or alter your home’s structure, a permit may be necessary. You can review the guidelines on the
Town of Niagara-on-the-Lake website, or our team can help you confirm requirements during your quote visit.
What’s the difference between retrofit and full-frame installation?
Retrofit windows fit into your existing frame, making them more affordable and less invasive. Full-frame (brick-to-brick) installation replaces the entire frame and trim, delivering maximum insulation, efficiency, and a fresh new look.
How long does window installation take for a typical home?
Most installations are completed in a single day by our in-house crews. Larger or custom projects may take longer, but we always work efficiently to minimize disruption to your home.
Where can I learn more about local window regulations?
You can visit the Niagara-on-the-Lake Town Hall or check their Building Services page for up-to-date permit and renovation information.
Niagara Region Service Areas
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Niagara On The Lake Windows (You’re Here)
Looking for more than windows? We also provide
Doors,
Siding, and
Eavestrough Installation
across the Niagara Region.






