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Our new hung windows feature a solid microcellular PVC construction that offers the window extra strength and insulation. This technology allows manufacturing windows that are more energy-efficient, brighter, and stronger.

Discover the technology

revocell awning fixed bay bow cutaway with microcellular pvc blow up

More Efficient.

We build our windows for maximum indoor comfort, year-round. Our RevoCell hung windows achieve a superior Energy Rating (ER) in both double and triple-pane glass configurations.

40 Double Pane
48 Triple Pane

Energy Rating (ER)

A RevoCell double hung window with the Energy Star Most Efficient 2021 logo.


Our window frames, sashes, mullions, and brickmoulds are solid inside, which makes then stronger than the typical hollow chambers used in PVC replacement windows. All of our windows come standard with a 4.5” deep frame, 38% more than the industry standard of 3.25”. This makes them more rigid and help seal the wall opening better.

As a result, our hung windows achieve a Performance Grade of 40, one of the best in this category.

40 NAFS Performance Grade
A comparison of RevoCell's Solid-core microcellular PVC engineering versus the hollow chambers of the competition.


he extra strength of microcellular PVC allows manufacturing our windows with slimmer frames and sashes. This adds an extra 1.5” of glass in each dimension compared to the average PVC hung window. We also use some of the clearest glass available. As a result, you get more natural light inside your home.

Isn’t that what you put windows in your wall for?

25% Brighter
A RevoCell double hung window showcasing it's thinner mullions and more glass surface area, making them brighter.

Built to deliver

From energy efficiency, to durability and security, our RevoCell® hung windows have been designed to exceed the highest standards — including your spouse’s.

Window Model Air Infiltration / Exfiltration Forced Entry Resistance Performance Class Performance Grade U-factor Btu/ft²•hr•F° Energy Rating (ER) NRCan reference number
Double-pane casement A3 F10 R 40 0.27 40 37096718
Triple-pane casement A3 F10 R 40 0.17 48 37096726

AAMA/ WDMA/CSA 101/I.S.2/A440-17, NAFS (North American Fenestration Standard) Specification for windows, doors, and skylights

Nordik Double Hung Window Features

Space-saving, durable, and energy-efficient, our RevoCell® tilt-in hung windows have been specifically designed for the Canadian climate extremes. Here are some features that make them exceptional:

Nordik double hung windows feature Microcellular PVC construction.

The solid-core microcellular PVC frame is 4.5”, deeper than the usual 3.25”, making a window that’s stronger and seals the rough opening better.

Nordik double hung windows feature multiple weather seals.

Triple weatherstripping at the window frame and sash interface provide top weather protection.

Nordik double hung windows have Dual and triple-pane options.

Our double hung windows are available with double-pane or triple-pane glass and filled with 98% environmentally-friendly Argon gas.

Nordik double hung windows feature Ener-Edge® warm-edge spacer.

Our insulated glass units use a top-performance cellular warm-edge spacer to minimize direct heat transfer.

Nordik double hung windows feature Low-emissivity coated glass.

Our super-clear low-iron glass allow more visible light through, while low-e coatings help reflect back heat.

Nordik double hung windows feature a PVC-cladded interior wood extension.

The PVC-clad wood sill and jamb extension seals walls of any thickness, while providing a maintenance-free finish and accommodating various window treatments.

Nordik double hung windows feature a “One-Click”, easy-to-remove sash.

The operable sash on our hung windows tilts in for easy cleaning from the interior.

Nordik double hung windows feature coil-spring, constant-force balance system.

The constant force spring balancing system allows for easy and trouble-free operation.

Nordik double hung windows features an integrated sash latch.

The integrated latches secure the operable sash to the window frame.

Nordik double hung windows feature decorative cam action locks.

The decorative cam action locks provide extra security.

Nordik double hung windows feature a “One-Click”, easy-to-remove sash.

The operable sash on our slider window is removable for easy cleaning from the interior.

Nordik double hung windows feature optional added brickmould.

Brickmould available as an option for select installations.


Double Hung Window Gallery

Take a look at this gallery to see what Double Hung windows can look like installed in a home.

Custom Is The New Norm

Gone are the days when window companies dictated what your home should look like. Every single window we build is as unique as you want it. From factory finishes to custom paint, decorative grilles or simulated divided lites, textured or tinted glass, the combinations available are virtually endless.

Add some colour

Most homeowners get their replacement windows in stock white, which is a great all-around colour. But you don’t have to: our comprehensive palette of exterior factory finishes will match any home style and help elevate its look.

Standard colours

Our windows’ interior colour is white, but exterior colours are also available in several affordable factory finishes. Our standard colours are engineered in cap stock (coloured PVC) for lighter tones and durable, architectural-grade laminate for the darker tones. They are extremely colourfast and and more durable than paint. We also offer a full-black (exterior and exterior) on select windows. Please contact us to inquire about the availability of custom-painted colours.

Grilles Patterns and Styles

In the old days, large panes of glass could not be manufactured cost-efficiently, so windows were filled with many smaller pieces of glass held in the sash by bars called muntins. These divided lite look has become a sought-after architectural element, especially on traditional home styles. Take advantage of our window customization expertise to elevate the look of your new windows

An example of a contour grille in a Nordik Window.

Internal grilles are installed between the panes of glass, inside the the insulated glass unit. This allows for the easiest window cleaning. Our internal grilles are available in a variety of profiles, sizes, and finishes.

An example of a diamond patterned grille in a Nordik Window.

Simulated divided lites (SDL) are external grilles. They are applied on the exterior of the insulated glass unit and give a more realistic muntin appearance. Like internal grilles, our SDL’s are available in multiple profiles and finishes.

Grille Patterns

We offer a variety of patterns for window grilles. Here are a few of the most popular ones. You can mix and match internal and external grilles to get the exact style your require.

An example of a rectangular grille in a Nordik Window.


This classic divided-lite look offers a traditional Old-World aesthetic. Works equally well on traditional and newer homes, adding a timeless elegance.

An example of a partial covering grille in a Nordik Window.

Partial Covering

Our grilles can be aplied to a portion of the window only. Combined with an SDL profile, you can also reproduce a hung sash appearance on a casement window.

An example of a contour grille in a Nordik Window.


Contour grilles go around the perimeter of the sash. Often associated with the Paririe School style, they add a artsy touch that’s distinctively North American.

An example of a diamond patterned grille in a Nordik Window.

Diamond Pattern

The diamond pattern can add an artistic touch to a traditional home. The understated charm of thin grilles adds extra interest from up close.

An example of a divided lites grille in a Nordik Window.

Divided Lites

Our grilles can be aplied to a portion of the window only. Combined with an SDL profile, you can also reproduce a hung sash appearance on a casement window.

Specialty Glass

We also offer some alternatives to clear glass in your windows. Tinted glass can be used to lower light levels, or to alter the colour balance indoors. Textured glass adds a degree of privacy as well as decorative interest, while letting natural light inside.

An example of specialty grey glass.

Grey Glass

An example of specialty bronze glass.

Bronze Glass

An example of specialty frosted glass.

Frosted Glass

An example of specialty glue chip glass.

Glue Chip Glas

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