Casement Windows Installation & Replacement in Calgary

A continuous, fusion-welded corner turns the frame and sash into a single, rigid unit, eliminating joints that can loosen during freeze-thaw cycles. That extra rigidity resists the warping and racking that often plague mechanically-fastened PVC when Calgary plummets to –30 °C and then rebounds during a Chinook. By keeping the geometry square, the window maintains a uniform compression seal, preventing the micro-gaps that cause drafts, heat loss, and ice build-up on interior trims. You’ll feel fewer cold spots near the glass and gain years of trouble-free operation—no seasonal “sticking” or realignment required.

Every casement comes standard with a 7/8″ insulating glass unit featuring Low-E coating, argon gas fill, and a warm-edge black “S”-Class Super Spacer®. Together, these elements reflect interior heat back into the room during deep winter while blocking up to 70 % of summer solar gain, stabilising indoor temperatures without over-working your furnace or A/C. Upgrading to the optional 1 ⅜″ triple glazing cuts U-values even further—an advantage when aiming for Net-Zero Ready or CHBA energy rebates. The dark spacer also minimises sight-line glare, giving the glass a sleek, uninterrupted look that enhances curb appeal.

Stainless-steel arms and low-profile nesting handles are engineered for 10,000+ open/close cycles, so they won’t seize up after a couple of dusty prairie summers. The handle folds neatly into a recess, eliminating interference with window treatments and reducing the chance of accidental bumps in high-traffic areas. Because the crank mechanism multiplies torque, even large triple-glazed sashes glide open effortlessly — ideal for seniors or anyone with limited grip strength. Corrosion-resistant coatings fend off the calcium chloride used on Calgary sidewalks, ensuring the hardware looks new long after install day.

Three continuous lines of compressible weather-stripping form an air- and water-tight barrier that outperforms traditional brush seals. When Chinook winds roar in at 100 km/h, the harder the gusts push, the tighter the sash presses against the frame, stopping dust and pollen from infiltrating your home. The integrated step-down frame also channels rainwater away from the interior edge, so sudden thaws or driving spring storms can’t force moisture past the seal. The result is lower relative humidity indoors, fewer condensation issues, and a quieter, more comfortable living space year-round.

Rather than relying solely on exterior silicone, the glass is secured with a high-tack tape glazing system that bonds the IGU directly to the sash for a 360-degree seal. This method eliminates voids where meltwater can collect, freeze, and eventually cause glass-edge failure — a common issue in climates with extreme temperature swings. A co-extruded flexible exterior gasket absorbs expansion and contraction, protecting both the sealant and the IG unit from shear stress. In practical terms, you get better structural strength, a longer seal-life warranty, and far less risk of foggy panes down the road.