Casement windows are one of the most energy-efficient window styles you can install in a Calgary home, combining a tight compression seal with wide-open ventilation. We handle casement window replacement from first measurement to final seal, using Energy Star rated units built for Alberta's climate.
A casement window is hinged on one side and opens outward with a crank handle, closing tight against the frame for one of the best seals available in a replacement window. As an official Jeld-Wen dealer, we install casement windows in vinyl frames engineered to hold up to Calgary's winters and summer heat alike. Whether you're replacing a single casement window or updating every window in your home, we handle measuring, product selection, and installation with our own crews. Every estimate is free, and every installation is backed by a manufacturer warranty.
When a casement window closes, the sash presses tightly against the frame on all sides, creating one of the strongest seals of any window style. That tight compression reduces air leakage and heat loss, which matters through a Calgary winter. Paired with Energy Star rated glass, casement windows help keep energy bills more predictable year-round.
Because casement windows swing open a full 90 degrees, they catch and direct passing breezes into the room rather than just letting air trickle in. Even a small crank opens the entire sash, so you get more airflow than a sliding or hung window of the same size. That makes them a strong choice for kitchens, bedrooms, and anywhere you want real air circulation.
Casement windows lock at multiple points along the frame, and the sash has to be pried away from a tightly compressed seal to force it open. That design makes them harder to break into than sliding or single-hung windows, which typically rely on a single latch. For ground-floor rooms especially, that extra resistance is worth having.
Casement windows use slim frames and a single large pane, so there’s less hardware and framing blocking your view outside. If your yard, garden, or street view matters to you, a casement window shows more of it than styles with grilles or multiple sashes.
One sash, one crank — a straightforward option for smaller openings like bathrooms, hallways, or secondary bedrooms. It’s the simplest casement configuration and works well anywhere you want ventilation without a lot of extra hardware.
Two sashes that open independently or together, ideal for wider openings like living rooms or larger bedrooms. It gives you more airflow control than a single unit while still keeping the tight seal casement windows are known for.
A casement window paired with a fixed pane beside or above it — you get ventilation where you need it and extra glass area where you don’t. This combination works well in kitchens and dining rooms where more natural light is a priority.
Casement windows with decorative grille patterns, useful for matching a traditional or character home’s existing look. They keep all the functional benefits of a standard casement while fitting a more classic exterior style.
Casement windows are often used as the operable sides of a bay or bow window, with a fixed picture window in the centre. It’s a good fit if you want to expand a room’s sightline and add architectural interest along with better ventilation.
Casement windows only perform as well as their installation, so who does the work matters as much as the product itself.
Our team brings more than 30 years of combined experience installing casement and other window styles across Calgary homes of every age and layout.
We can confidently say we’ve installed more than 5,000 windows across Calgary and surrounding communities — real homes, real installs, real referrals.
The owners of Sunbusters are also the ones quoting your job and installing your windows — no commissioned sales reps, no subcontracted crews.
Casement windows are hinged on one side and open outward using a crank handle, rather than sliding up, down, or side to side. Turning the crank pushes the sash away from the frame, and closing it draws the sash back into a tight compression seal. This mechanism is what gives casement windows their strong energy efficiency and full-opening ventilation.
Yes. The compression seal that casement windows create when closed helps reduce the drafts and air leakage that are common with older sliding or hung windows, which matters through Calgary’s cold winters. Combined with Energy Star rated glass, they hold up well to both winter cold and summer heat.
Casement windows pair well with fixed picture windows, bay and bow configurations, and grid-pattern accents, so you’re not limited to a single look. This is a common way to add more natural light or a wider view while keeping the ventilation and seal of a casement window where you need it. We can walk you through combinations that suit your home’s layout during your free estimate.
For most homes, individual casement window replacement is completed in a single day by our installation crew, though larger projects with multiple windows may take longer. Timelines depend on the number of windows, any custom sizing required, and the condition of the existing frames. We’ll give you a clear timeline as part of your free, no-obligation estimate.
We’re a trusted part of our customers’ lives. Their real experience reflect our commitment to compassionate care.
