High-Performance Windows and Patio Doors Designed for Toronto Homes

Upgrade your space with expertly manufactured, energy-efficient windows—built right here in Ontario and tailored to meet the needs of modern toronto homes.

From sleek casement windows to classic Patio Doors, ON Windows & Doors provides durable, stylish, and certified products with enhanced energy savings and a contemporary look. Explore our full range below.

100% Canadian Assembled Products

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Installed by Certified Professionals

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Energy Rebate Eligible

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In-Home Consultations Available

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Serving Southern Ontario

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100% Canadian Assembled Products • Installed by Certified Professionals • Energy Rebate Eligible • In-Home Consultations Available • Serving Southern Ontario •

White casement window with an open double sash design and adjustable hinges.

Casement Windows

Casement windows are hinged at the side and open outward to the left or right, making them ideal for areas with limited space. They offer unobstructerd views and are second only to fixed windows in terms of energy efficiency, effectively keeping out dust, wind, and rain. Their 90-degree opening allows for easy cleaning and excellent ventilation.​

View through a window showing a scenic garden with trees and shrubs, with curtains pushed aside and pillows on a cushioned window seat.

Key Features:

  • Outward opening with vertical pivot​

  • Superior airtightness with triple weatherstripping​

  • Large opening for enhanced ventilation​

  • Available in double or triple glazed sealed units​

White tilt and turn window with open casement hinge and black background

Awning Windows

Awning windows are top-hinged and open outward, tilting approximately 30 degrees. This design allows for ventilation even during light rain, making them a practical choice for various rooms. Similar to casement windows, they offer high energy efficiency and a clear, unobstructed view.

View of a window with floral curtains, a windowsill with potted plant and books, and a sofa with beige and green pillows.

Key Features:

  • Outward opening with horizontal pivot​

  • Excellent airtightness with triple weatherstripping​

  • Provides expansive, unobstructed views​

  • Available in double or triple glazed sealed units

White double-hung sliding window with a screen.

Single Slider Windows

Single slider windows feature one fixed sash and one operable sash that slides horizontally. Commonly used in basements, they are a versatile choice for any room requiring horizontal window openings. Options include lift-out or tilt sashes for easy cleaning.

View of a cozy indoor space with a window seat, pillows, and a large window showing a garden landscape outside.

Key Features:

  • Horizontal sliding operation

  • Smooth sash movement​

  • Double glazed sealed units for energy efficiency

White sliding window with three panels, two fixed and one sliding, with handles on each sliding panel.

Double Slider Windows

Double slider windows have two operable sashes that slide horizontally, allowing for versatile ventilation options. They are suitable for rooms where maximum airflow is desired and can be equipped with lift-out or tilt sashes for convenient cleaning.

View of a window with floral curtains, overlooking a garden with shrubs and trees, inside a room with a bench and pillows.

Key Features:

  • Dual horizontal sliding sashes​

  • Smooth and easy operation​

  • Double glazed sealed units for enhanced insulation

White window with a screen and frame, secured with a latch

Single Hung Windows

Single hung windows, also known as vertical sliders, have a fixed top sash and a bottom sash that slides upward. The bottom sash can tilt inward for easy cleaning, making them ideal for tall, narrow openings. While they offer classic styling, they are less energy-efficient compared to casement or awning windows.

A cozy window seat with pillows, books, and a flower arrangement overlooking a lush, green landscape outside.

Key Features:

  • Vertical sliding bottom sash​

  • Tilting sash for easy maintenance​

  • Double glazed sealed units for improved energy performance

White double-hung window with three panes, two fixed top and bottom sash, and one tilt-in middle sash.

Double Hung Windows

Double hung windows feature two operable sashes that slide vertically, allowing for versatile ventilation options. Both sashes can tilt inward, facilitating easy cleaning. They are a traditional choice for many homes but may not offer the same energy efficiency as casement or awning windows.

A cozy window seat with cushions and a plant, looking out onto a garden with trees and bushes.

Key Features:

  • Two vertically sliding sashes​

  • Both sashes tilt for convenient cleaning​

  • Double glazed sealed units for better insulation

A white multi-pane window with three sections, one large middle section and two narrower sections on the sides.

End Vent Slider Windows

End vent slider windows are designed for larger openings where standard sliders may not suffice. They feature two operable sashes on each side and a fixed center pane, combining expansive views with functional ventilation.

Interior view of a cozy home with a large window, floral curtains, a window seat with books, cushions, and a flower arrangement, overlooking a garden.

Key Features:

  • Horizontal sliding operation​

  • Dual operable sashes with central fixed pane​

  • Double glazed sealed units for energy efficiency​

A white-framed glass door opening outward with a screen, showing a bright blue sky through the glass.

Tilt and Turn Patio Doors

Breathe new life into your home with inward-opening tilt and turn patio doors that offer modern functionality with unmatched performance. These versatile doors tilt inward from the top, allowing fresh air to flow in while stale air escapes — all while staying securely locked. Even during rain, the weather-sealed design keeps water out and comfort in.

A cozy room with a large window looking out onto a garden with trees and shrubs, with curtains, pillows, and books on a windowsill.

Key Features:

  • Dual-action functionality (tilt for ventilation, swing for access)

  • Superior energy efficiency with multi-layer weather stripping

  • Inward tilt protects against rain, wind, and drafts

  • Enhanced home security — cannot be opened from the outside while tilted

  • Sleek European-inspired design with modern lines

Open black window frame with two glass panes, one on each side, against a white background.

Bifold Patio Doors

Transform your home’s connection to the outdoors with folding patio doors that deliver a clean, panoramic view. Engineered with durable thermal-grade aluminum and expansive glass panels, these folding doors open accordion-style to create an elegant transition between interior and exterior spaces.

View through a large window of a garden with trees and bushes, with patterned curtains on either side, inside a cozy room with cushions on a built-in window seat.

Key Features:

  • Space-saving, accordion-style panels maximize indoor/outdoor flow

  • Thermal aluminum frame supports year-round comfort

  • Large glass panes bring in natural light and fresh air

  • Hidden retractable mosquito screen available

  • Sleek, modern finish with laminated safety glass

Sliding glass door with a black frame and blue-tinted glass panels.

Sliding Patio Doors

A classic solution redefined for Ontario homes. Our sliding patio doors glide smoothly on precision rollers, saving space and offering an effortless transition between your home and the outdoors. Designed for longevity and ease of use, each door is custom-built for your space with features that enhance energy efficiency, security, and style.

A cozy window seat with pillows and books, overlooking a garden with trees and shrubbery outside a white framed window.

Key Features:

  • Space-saving design with horizontal movement

  • Oversized sash frames for a luxurious appearance

  • Smooth glide operation with soft-touch weather stripping

  • Multi-point locking system for added security

  • Available in a wide range of colors and finishes

  • Optional retractable screen and secondary security locks

Black-framed sliding glass window with two large panes and a screen

Stacking Patio Doors

For those who want a full-wall view and flexible opening options, stacking patio doors are the ultimate upgrade. Built with commercial-grade aluminum and multiple wide glass panels, these doors slide and stack cleanly to one side or split from the center, offering a customizable entrance and expansive, uninterrupted views.

Room with a large window showing a garden outside, with curtains on each side, pillows on a bench, and a flower arrangement on the window sill.

Key Features:

  • Multi-panel design with customizable openings

  • Panels slide and stack against each other or into concealed wall pockets

  • Built for large openings — widths up to 24 ft and heights over 95"

  • Heavy-duty thermal aluminum frame and smooth-glide hardware

  • Optional pleated retractable screens and upgraded handles

  • High-performance weather sealing and energy-efficient glass options

Our 3-Step Process Makes It Easy

1.Call to Schedule a Phone Consultation

Our office will qualify your project and explain your options.

2.Free In-Home Assessment

A certified team member will visit your home to take measurements, review styles, and provide a personalized estimate.

3.Hassle-Free Installation

Our skilled installers ensure a clean, efficient setup with full removal of old materials.

You have a 10-day grace period to cancel or make changes.

View of snow-capped mountains and a lake, seen through a room window with multiple panes.

Toronto’s Go-To Window & Door Experts

Locally Owned & Operated

100% Assembled in Ontario

Smart Home Compatible Options

Rebates Available

Premium Products Without Markup

Friendly Service With a Clean Finish

Skyline of Toronto with the CN Tower, modern buildings, a plane flying in the sky, and water in the foreground.

Proudly Serving Southern Toronto

We work where the work makes sense. From Hamilton to Kitchener-Waterloo, and everywhere the leads are strong.

We currently do not service Brampton.

Common service areas:

  • Hamilton

  • Guelph

  • Kitchener

  • Cambridge

  • Burlington

  • Oakville

  • Niagara Region

Can’t Call Us?

Send us an Email and let us know what you’re looking for and we’ll get back to you within 1-2 business days.