Classic PVC Casement Windows

A closed Classic Series Double Slider Window from the front.
An open Classic Series Double Slider Window from the front.
An open Classic Series Double Slider Window from the side.
A closed Classic Series Double Slider Window from the side.

Northern Comfort PVC Casement Windows are an industry standard in terms of quality and features. Impervious when shut, with triple weatherstripping, durable compression seals, a secure multi-point locking mechanism, they protect your home from bad weather, infiltration, and ingress. Our Classic Series windows feature an ornate traditional profile matching any home style. They keep your home comfortable, with multiple air chambers for great insulation, and a fusion-welded one-piece structural construction with integrated mullions and brickmoulds.

Energy Star Logo

When to Choose Casement Windows

Casement windows appear hinged at the sides and open towards the exterior using a crank handle at the bottom. By default, we build them for easy access from the interior to both sides of the sash when open, to make cleaning the windows easy. Another option is to hinge them so as to offer a maximum opening size, to facilitate egress where required.

Since casement windows open fully, they offer the most ventilation of all window styles. This makes them suitable to any room, when built in medium to large sizes, and when they do not interfere with traffic outside. They work best in vertical panels, and we like to build them in multi-lite configurations for wide openings, to reduce operation effort and loads from excessively strong winds, as well as to minimize interference with the exterior.

Our casement windows offer high security, as they are reinforced with a multi-point locking mechanism engaged using a lever on the side. The triple weatherstripping with continuous compression seals allows them to close snugly to prevent infiltration and leakage, that’s why they are the best choice for bedrooms or other rooms where a maximum comfort level is desired. That’s also why they are the best suited for our cold Canadian climate.

We build casement windows in any custom configuration to meet your exact requirements. Our seamless one-piece frame allows for large, energy eficient windows with more glass, less plastic, and a durable construction.

Stylish and bright living room a with large triple-lite casement window.

Stylish and bright living room a with large triple-lite casement window. Casement and awning windows allow for maximum ventilation while offering the best energy efficiency among all operable window types, and are the preferred choice for window upgrades in the cold climate of Canada.

Classic Series PVC Casement Window Features

Here are some of the features that make our windows great for keeping your home comfortable while lowering your energy bills.

Low-emissivity glazing.

Low-emissivity glazing

An invisibly thin metallic coating is baked onto one or more of the glass pane surfaces, reflecting most of the heat in the form of infrared radiation back inside the home during winter and outside during summer, while letting most visible light pass through.

Dual-pane glass

Dual-pane glazing

Two layers of glass are joined to create a sealed hollow chamber that acts as a thermal buffer between the inner and outer glass panes. This minimizes direct heat transfer through the glazing, and helps prevent condensation and ice build-up. It also allows for more solar heat gain during winter than with darker triple glazing.

Argon gas filling

Argon gas filling

The air between the glass panes inside a thermal glass unit is replaced with argon. This inert, odourless gas is heavier than air, reducing convection between the panes and the associated heat loss through the insulated thermal glass unit. It also offsets water vapour to prevent condensation between the panes.

Ener-Edge® warm-edge spacer

Ener-Edge® warm-edge spacer

Our thermal glass units use a cellular silicone warm-edge spacer that possesses low thermal conductivity, minimizing heat transfer between the interior and the exterior of the thermal glass unit. It also allows for the natural expansion and compression of the unit due to temperature changes without failing the seal between them.

Hollow Chamber Construction

Hollow-chambered PVC frames

Our Classical series PVC window frames, sashes, mullions, brickmoulds feature multiple air chambers for superior insulation. They are fusion-welded for an impervious joint that prevents the air from moving in or out of the window frame or between the chambers.

Triple Weatherstripping

Triple Weatherstripping

Moving window sashes use three distinct continuous weatherstripping seals at the interface with the stationary window frame and mullions. This prevents drafts and minimizes the associated heat leaks through the window. Also, the thermal glass unit itself is sealed to the sash from both the inside and the outside.

Structural Construction

Structural Construction

Our casement windows feature a durable one-piece structural window frame with integrated cross-mullions. It allows for more natural light to enter the interior, and offers better protection against drafts and water infiltration.

4-1/2” PVC welded frame

4-1/2” PVC welded frame

Our 4-1/2” frame is stronger and more durable than the standard 3-1/4” frame available from most other window manufacturers. Our larger frame allows us to put the thermal pane closer to the inside of the house resulting in better thermal protection and a stronger window.

PVC-cladded interior wood extension

PVC-cladded interior wood extension

Our windows include an interior wood cladding that allows for the easy installation of blinds or other window treatments, and results in greater window strength and durability.

High-gloss finish

High-gloss finish

We use the highest grade PVC powder and fabrication techniques which result in a high gloss PVC finish. As a result, our windows are easier to clean, more durable, and won’t fade or yellow over time.

Dual Arm Operator

Dual-arm operator for sashes over 22”

Any sash with a width of 22” or greater comes with a standard dual-arm Truth Maxim® operator which provides maximum performance to open and close larger windows with 33% less effort than other operators of its kind. These operators feature a sealable housing to reduce water and air infiltration without the use of caulk or additional sealant.

Truth Encore® nesting handle

Truth Encore® nesting handle

The unique cover and handle design of the Truth Encore® will differentiate your window from the rest. The full-flip folding handle recesses in the operator cover, giving your window a smooth, contemporary look, and eliminating any interference with curtains and blinds.

NOVA® multi-point lock

NOVA® multi-point lock

The NOVA® Multi-point locking system is the most advanced and adaptable solution on the market. With a removable handle and cover, it offers optimized security, immense flexibilty, and effortless operation.

Integrated Brickmould

Integrated brickmould

Our integrated brickmould is a superior window finish because it’s part of the window structure and doesn’t require caulking and capping – this means less chance of water and air leakage.

Easy to remove screen.

“One-Click” easy-to-remove screen

Our smooth-edge, easy-to-remove “One-Click” screens are the easiest screens to operate in the industry. With their durable, yet elegant, aluminum finish, these screens won’t warp or break down over time like some of the competition.

Traditional Look Classic Series Windows.

Traditional Look

Our Classic Series windows feature an ornately beveled profile that is reminiscent of colonial homes of the past. They also work well with more modern home designs, to create a timeless look.

An installer leaning on a window.

Professional installation

Only a professional installation allows a window to perform as it was designed. Factory-trained, certified profesional installers will fit and fine-tune your windows for smooth operation for many years to come, while making sure that your home is securely sealed against wind, water infiltration, pests and intruders.

Energy-Efficient Casement Windows

The manufacturing process of all Energy Star® certified windows sold by Northern Comfort Windows and Doors are audited by an independent accredited certification body and approved by Natural Resources Canada. Our windows and doors carry the Energy Star® label showing the specific climate zone for they are rated for.

Our Classic Series PVC casement windows are rated for Energy Star Canada Zone 2.

Window Type Air Water Wind ER Zone Reference #
PVC A3 B7 C5 31 2 NR6681-5649455-ES
Hybrid A3 B7 C5 30 2 NR6681-7921141-ES
Energy Climate Zone maps for Ontario and Canada

Energy Star® Climate Zones for Canada and Ontario

Hybrid PVC / Aluminium Construction

Our Classic Series double hung windows are also available in a hybrid PVC / Aluminium construction. The factory-finished aluminium plating profile matches the window and is applied on the exterior side. It acts as an extra shield against strong mechanical forces (hail, hurricanes, debris, intruders, etc.) while offering a more durable colour finish. Consider the hybrid construction in high-traffic areas, commercial, condominia and other multi-storey residential buildings, as they are designed to withstand more abuse and provide better wind deflection capabilities.

Hybrid Aluminum Section
A RevoCell™ Casmement window.

Also available in RevoCell™ microcellular PVC construction.

Consider upgrading to casement windows in the newer, future-proof RevoCell™ microcellular PVC technology. RevoCell™ windows feature superior energy efficiency, a stronger and more durable construction, more glass surface for more natural indoor light, and a minimalist contemporary design.

Check our our RevoCell™ Casement Windows

Your Very Own Custom Window Design

Gone are the days when window companies dictated what your home should look like. Every single window we build is as originally yours as you want it to be. From the window type and configuration, to colour and finishing, special glazing, decorative grilles, casing and capping, we can customize and build your windows exactly as you fancy them, ensuring they are durable and compliant to all norms and regulations.

The front window of a house with coloured and textured window finishing.

Colours and Custom Finishes

Add some colour to you home exterior by choosing from our popular standard window colours, or take your customization one step further with factory-applied wood essences or other finishes of your choice.

The front of a house with a window with grilles.

Grilles and Divided Lites

Between-the-glass grilles provide a decorative multi-lite look without the maintenance, while external simulated divided lites add more realism. Mix-and-match from a comprehensive selection of patterns, profiles, and finishes, for a look that’s uniquely yours.

A bathroom window with specialty frosted privacy glazing.

Specialty Glazing

Choose among multiple window tints to customize the light colour and exterior views, or opt for textured glass to add intricate details as well as varying degrees of privacy to those parts of your interior you want to keep private, all while getting as much light inside as possible.

Specialty casing and trim on a living room window.

Casing & Trim

Whether you want to preserve and enhance a consistent style of your home, or you want to go for a new refreshed look, finishing around windows can help a lot with custom trim, moldings, capping and minute details that give grand refinement.

Learn more about our window customization options

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