Casement windows are the most popular window style in the GTA for good reason. They hinge at the side and swing outward with a crank mechanism, which means the entire opening is unobstructed — no sashes dividing the view, full ventilation, and a tight compression seal when closed that outperforms sliding windows on energy performance.
When a casement window closes, the sash presses firmly against the frame on all four sides, creating a seal that sliding windows cannot match. This matters in Ontario winters, where a tight thermal seal directly affects heating costs and comfort. Casement windows consistently outperform sliders on air infiltration tests.
The crank mechanism means casement windows are easy to operate and easy to clean from inside — the sash swings out and you can reach the exterior glass without going outside. This is a practical advantage in second-floor installations.
Casement windows also qualify as egress windows in most configurations, which is required for bedrooms in new construction and preferred for safety in any ground-floor or basement sleeping area.
We supply casement windows in vinyl frames — durable, low-maintenance, and colour-stable through GTA temperature extremes. Frame colours include white, beige, black, and other options depending on the product line.
Glass packages include:
A single casement is one operable sash that swings to one side. A double casement has two sashes that each swing outward from the centre — useful for wider openings where you want ventilation across the full width. Double casements can be paired with a fixed centre panel for very wide openings.
Casement windows typically run $600 to $1,100 per window installed in the GTA, depending on size and glass package. Call us at 416-800-1365 for a free written quote on your specific openings.
Yes. The compression seal on a casement window is tighter than the sliding seal on a horizontal slider, which means less air infiltration. For Ontario winters, this is a meaningful difference in heating costs and comfort.
Yes, in most configurations. Ontario building code requires a minimum clear opening for egress. We confirm egress compliance for any bedroom or basement window at the quote stage.
The sash swings outward, which lets you reach the exterior glass from inside the home. This makes cleaning straightforward on second-floor installations where exterior access would otherwise require a ladder.
Yes. Vinyl casement windows are available in a range of standard colours including white, beige, and black. Custom colours are available depending on the product line — ask at the quote stage.
Get a free casement window quote.
Call 416-800-1365 or request a quote online.
30 years in business. Owner-direct service. No pressure, no commissioned salespeople.
Thinking about your home's overall security? Julian Herzberg, owner of Comfort Windows & Doors, also conducts independent professional home security audits through his separate firm, Home Security Consultants. An audit will identify your property's specific vulnerabilities and give you a prioritized action plan — with no products to sell and no pressure. The two businesses are completely independent.