Grimsby Windows
Energy-Efficient Window Replacement for Grimsby Homes
Upgrade your Grimsby home with Canadian-made window replacements installed by a trusted local team proudly serving lakefront neighbourhoods, historic homes, and newer residential communities.
- Trusted in Niagara since 2009
- Professional installation team
- Clean work, respectful service
Trusted & Top-Rated Across Niagara
Why homeowners choose Great Northern Home Exteriors
Keep your home warm in winter and cool through summer with energy-efficient windows built to handle seasonal temperature changes.
Choose from full-frame or retrofit installation, designed for long-term durability, airtight performance, and precise fit.
Casement, slider, picture, bay, bow, and custom window designs crafted to enhance curb appeal and everyday comfort.
Proudly serving homeowners across the Niagara Region, including Grimsby, for over 15 years.
Enjoy 25-year product coverage and our 5-year workmanship warranty for long-term peace of mind.
Experience installing windows in homes exposed to lake-effect winds, elevation changes, and a wide mix of architectural styles.
Upgrade Your Home with High-Performance Window Solutions
Older or drafty windows don’t just affect comfort — they can also increase your heating and cooling costs. Since 2009, Great Northern Home Exteriors has helped local homeowners replace outdated windows with modern, high-performance systems designed for long-term efficiency and dependable everyday comfort.
- Bay and bow window layouts that brighten interiors with natural light
- Full-frame installation for improved insulation, durability, and curb appeal
- Retrofit options that deliver efficient upgrades with minimal disruption
- Detailed aluminum capping and clean finishing for a seamless, polished look
- Transparent pricing and expert local guidance — never any high-pressure sales
Whether your home sits near the escarpment, close to the lake, or in one of Grimsby’s quieter residential pockets, our installation team provides window upgrades built for lasting comfort, improved energy savings, and dependable craftsmanship you can rely on.
Expert Window Installation for Long-Lasting Performance
Every installation is carried out by our experienced in-house crew, ensuring consistent workmanship and clean, reliable results. Whether your home is a newer build or features more traditional architecture, we offer both retrofit and full-frame installation methods to improve year-round comfort, efficiency, and long-term durability.
With years of experience working in neighbourhoods throughout the area, our team completes every project with careful attention to detail, professional finishing, and installation practices built to perform for decades.
Retrofit (Insert) Installation
This method improves your home’s comfort and energy efficiency while preserving the existing interior trim and exterior finishes. New windows are installed cleanly within the current frame, using precision Cove trim indoors and protective aluminum capping outside — providing a seamless, efficient upgrade that enhances both appearance and performance. A popular option for many homes, retrofit installation offers excellent results with minimal disruption.
Full-Frame (Brick-to-Brick) Installation
Our full-frame method removes the entire existing window system — right down to the studs — for a completely new, airtight installation. This option is ideal for older homes or full exterior renovations, allowing us to rebuild the opening with jamb extensions and new vinyl brickmould that enhance protection, energy performance, and long-term style. Full-frame installation offers the highest level of improvement, delivering a fresh, clean look and maximum efficiency.
Whichever installation method you choose, our installers bring skilled craftsmanship and careful attention to detail to every project — ensuring your home remains comfortable, energy-efficient, and professionally finished for years to come. Our experience with a wide range of Niagara home styles means every installation is completed cleanly and built to last.
Premium Window Styles Built for Long-Term Performance
We install premium replacement windows engineered for lasting performance, everyday comfort, and refined curb appeal. From classic casement and double-hung designs to modern sliders and elegant bay or bow windows, every style is built to combine energy efficiency with durable craftsmanship.
Each window is custom-built to complement your home’s character, enhancing comfort, property value, and long-term visual appeal — ensuring your investment continues to perform and look great for years to come.
Casement Windows
- Multi-chamber vinyl construction improves insulation and durability
- Smooth crank hardware for quiet, precise airflow control
- Compression-seal design helps reduce drafts and outside noise
- Slim frame profiles available in modern colour finishes
- Opens wide for easy cleaning and unobstructed views
Picture Windows
- Large, seamless glass panels for bright, panoramic views
- Fixed design for top-tier energy savings and weather resistance
- Pairs beautifully with casement or slider windows for ventilation
- Custom sizes, shapes, and finishes to match any home design
- Maximizes daylight while maintaining a quiet, comfortable interior
Sliding Windows
- Smooth-glide rollers and strong tracks for effortless use
- Space-saving design that won’t interfere with walkways or decks
- Tilt-in sashes for fast, simple cleaning
- Energy-efficient vinyl frames with insulated Low-E glass
- Slim modern profiles to maximize glass area and outdoor visibility
Double Hung Windows
- Operable top and bottom sashes for customizable ventilation
- Tilt-in design allows easy cleaning from inside the home
- Efficient vinyl frames and insulated glass for year-round comfort
- Smooth, reliable hardware built for long-term performance
- Classic aesthetic that suits both heritage homes and modern builds
Bay and Bow Windows
- Elegant outward projection that boosts curb appeal
- Multiple glass panes increase room brightness
- Creates a cozy nook for seating, décor, or plants
- Energy-efficient frames with Low-E glass for comfort
- Fully customizable angles and finishes to match your home
Awning Windows
- Outward-opening design provides airflow while helping keep rain out
- Streamlined profile fits beautifully in tight or elevated spaces
- Pairs well with fixed or casement windows for added ventilation
- Durable vinyl frames with Low-E glass for long-term efficiency
- Great choice for bathrooms, laundry rooms, and other moisture-prone areas
What Actually Determines Long-Term Window Performance
The real difference between average windows and high-performing ones comes down to glass efficiency, frame integrity, and installation precision. When any one of these is overlooked, comfort, energy performance, and durability suffer over time.
Our approach focuses on measurable performance — not marketing hype — ensuring each upgrade delivers real gains in insulation, noise reduction, and operational lifespan.
- Low-E insulated glass improves year-round comfort
- Reduces heat loss and UV fading
- Reinforced vinyl frames resist warping
- Built to handle Niagara climate stress
- Precision sealing reduces drafts
- Proper insulation protects long-term performance
- More consistent indoor temperatures
- Smoother operation over time
Which Window Style Fits Your Home Best?
Picking the right window style isn’t about memorizing labels — it’s about matching your goals: more light, better airflow, easy cleaning, or a stronger insulation upgrade. We’ll walk you through the options, explain the trade-offs, and recommend what makes sense for your layout — especially if you’re balancing open views with ventilation.
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.
- Replace at least three windows or one door or one sliding door.
- Up to $600 reimbursed after the final audit.
- Homes using Enbridge gas or Ontario electric heat.
- Minimum two energy upgrades required.
- Keep all ENERGY STAR® labels until the final audit.
Working on more than windows in Grimsby? We can bundle your upgrades with:
Tie the whole front elevation together with a clean, modern entry upgrade.
Refresh curb appeal and protection with durable siding that stays sharp for years.
Finish strong with proper drainage and crisp edges for a cleaner exterior line.
Honest Window Advice Without the Pressure
Choosing new windows shouldn’t feel overwhelming. At Great Northern Home Exteriors, our focus is on helping you understand what truly matters — from energy performance and design options to long-term durability — without pushy sales tactics or confusing jargon.
Our specialists take the time to explain how different window styles function, when it makes sense to consider full-frame versus retrofit installation, and which features offer the best overall value for your home. The goal is simple: give you the clarity needed to make confident decisions that fit your space and budget.
Homeowners throughout the area rely on our local expertise, open communication, and commitment to quality workmanship — ensuring every project enhances comfort, efficiency, and long-term curb appeal.
Get a clear, no-pressure window estimate
Upgrade your home with windows built for comfort, durability, and curb appeal. Tell us about your project and our local team will provide a clear, on-site quote — no pressure and no hidden fees.
- Local installation team serving Niagara since 2009
- Retrofit or full-frame installation options explained clearly
- Transparent pricing with no surprises
“We had a new window and sliding door installed and couldn’t be happier. The team was professional, detail-focused, and kept everything clean. Pricing was fair, and we plan to replace more windows soon.”
— Bobby AWindow Projects Across Grimsby Neighbourhoods
Great Northern Home Exteriors Inc. provides professional window replacement and window installation across Grimsby. From established streets near downtown to newer communities by the lake and escarpment, our in-house crews help homeowners upgrade to modern, energy-efficient window systems designed to complement each property’s style.
Whether you’re closer to the waterfront, up by the escarpment, or tucked into a quiet subdivision, we’ll recommend the right window styles and installation approach with a focus on long-term performance, energy efficiency, and curb appeal.
Grimsby Window Replacement FAQ
How much does it cost to replace windows?
Do I need a building permit for window replacement?
What’s the difference between retrofit and full-frame installation?
How long does a typical window installation take?
How do I verify energy efficiency ratings for windows in Canada?
Are you a local installer or just a sales company?
Window Replacement Services Across Niagara’s Key Communities
Great Northern Home Exteriors installs high-quality replacement windows throughout Niagara, helping homeowners improve comfort, efficiency, and curb appeal. Select a nearby city to explore localized window options, real installations, and service details.