Bay Windows
Create a wider view and add dimension to a living room, dining area or front elevation with a projecting bay window configuration.
Explore Bay Windows →Residential Windows · Simcoe County & GTA
Replacement & New Construction Windows in Simcoe County & the GTA
Explore vinyl window styles for replacement projects, renovations and new construction. MK Windows & Doors helps homeowners choose the right operating style, glass package, configuration and size, with professional installation available across Simcoe County and the GTA.
20+ Years of Industry Experience
Custom Window Options
Professional Installation
15-Year Window Warranty
On eligible window products; applicable coverage is confirmed with your quote.
Factory-Direct Options
Window solutions for homes and projects
Replacement & New Builds
Options for existing homes and construction
Custom Sizes
Configurations matched to the opening
Simcoe County + GTA
Serving homeowners across the region
Window Styles
Choose the Right Window for Each Room
Different rooms need different combinations of ventilation, glass area, opening style and exterior clearance. Compare the available window types below, then open the dedicated page for more details on each style.
Casement Windows
Side-hinged casement windows open outward for controlled ventilation and close against the frame for a tight weather seal.
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Casement Fixed Windows
A stationary window designed to coordinate with casement profiles while providing a larger uninterrupted glass area where ventilation is not required.
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Bow Windows
Bow windows combine multiple window sections into a smooth outward curve, adding light, depth and a broader exterior view.
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Double-Hung Windows
A traditional operating style with upper and lower sashes that suits classic and transitional homes while providing flexible ventilation.
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Slim Fixed Windows
A low-profile stationary window with a narrower frame designed to maximize glass area and create clean contemporary sightlines.
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Awning Windows
Top-hinged awning windows open outward from the bottom, making them a practical choice for ventilation in bathrooms, basements and tighter wall areas.
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Single Tilt Slider Windows
Horizontal sliding operation makes these windows easy to use where an outward-opening sash is not ideal, with tilt access on compatible configurations.
Explore Single Tilt Slider Windows →
Architectural Shapes
Custom shapes help add character to gables, feature walls and specialty openings while coordinating with the rest of the home's window package.
Explore Architectural Shapes →Window Selection
Built Around Your Home, Opening & Priorities
A window should be selected for more than appearance. Opening size, ventilation needs, room use, exterior clearance, glass area and energy-performance goals all affect which style is the better fit.
- Replacement windows for aging, drafty or damaged units
- Window packages for renovations, additions and new construction
- Operating, fixed and architectural configurations
- Custom sizing and configuration options for compatible openings
- Glass, hardware and finish choices based on the selected product line
Collections & Performance
Window Options for Different Home Styles
The existing MK range includes Heritage, Classic and Heritage Maximum window collections, giving homeowners options across design, operation and performance requirements. We can help you compare available configurations before an order is finalized.
- Heritage Collection
- Classic Collection
- Heritage Maximum Collection
- Energy-efficient glazing options available by product configuration
- Professional measurement and installation for replacement projects
How It Works
From Window Selection to Installation
We keep the process focused on the opening, the product configuration and proper installation rather than treating every home as a one-size-fits-all project.
1
Discuss the Project
Tell us which windows you want to replace, the rooms involved and the performance or design goals you have.
2
Measure & Review
Opening sizes and project conditions are reviewed so compatible window styles and configurations can be selected.
3
Select the Windows
Choose the operating style, glass, colour, hardware and other available options for the selected product line.
4
Install & Check
The windows are installed, sealed, adjusted and checked for operation before the project is completed.
Local Service Area
Window Replacement & Installation Across Simcoe County and the GTA
MK Windows & Doors is based in Innisfil and serves homeowners across nearby Simcoe County communities and the Greater Toronto Area. Visit a location page for more local service information.
Window Quote
Ready to Compare Window Options for Your Home?
Tell us your city, the number of windows and the styles you are considering. We can help you narrow down suitable options and prepare a quote.