CASEMENT WINDOWS · DOUBLE & TRIPLE PANE · ENERGY STAR® CERTIFIED
Casement Windows in Ontario
ENERGY STAR® certified casement windows that crank open for full, top-to-bottom airflow and pull shut into an airtight seal — built for Ontario's climate and installed by Trust Build's own expert crews.
What Is a Casement Window?
A side-hinged window that cranks fully open
A casement window is hinged on the side and swings outward with the turn of a crank handle, opening fully like a door. Because the entire sash moves clear of the frame, a casement gives you the widest possible opening for ventilation in Ontario, and a single unbroken pane of glass for an uninterrupted view. When you close it, the sash draws tight against the weatherstripping on all four sides — which is why casements are among the most airtight windows you can install in a cold climate.
Why Casement Windows Suit Ontario Homes
Engineered for humid summers and deep-freeze winters
An airtight winter seal
The crank compresses the sash into the frame, leaving no gaps for cold air or drafts.
Maximum fresh air in summer
The sash opens nearly 90°, catching breezes a slider or hung window can't.
A clear, unobstructed view
With no centre rail dividing the glass, you get a full pane of light and an open sightline.
Effortless operation
A single crank opens and closes the window, ideal for hard-to-reach spots.
Engineered For Ontario
Triple-Pane Glass Unit
Every Trust Build casement is available with our triple-pane glass unit — three panes separated by two argon-filled chambers, a dual Low-E coating that reflects winter warmth inward and deflects summer solar heat, and a Super Spacer® warm-edge spacer that cuts the cold bridge at the glass edge where heat loss and condensation begin. Built with Cardinal Glass insulated units, it's engineered to hold comfortable indoor temperatures and trim year-round energy use in Ontario's climate. Double-pane configurations are available for sheltered or interior exposures.
Triple-pane construction
Three panes of glass separated by two insulating chambers.
Argon gas fill
A denser-than-air insulator that slows heat transfer through the glass unit.
Dual Low-E coating
Reflects warmth back into your home in winter and deflects solar heat in summer.
Warm-edge spacer
Reduces the cold bridge at the window's perimeter, where condensation and heat loss begin.
Tested Energy Performance
Casement model CCS-L
Values from certified testing of Trust Build window systems using NRCan / ENERGY STAR® metrics — Energy Rating (ER), U-Value, and Solar Heat Gain Coefficient (SHGC).
| Glass Package | ER | U-Value | SHGC |
|---|---|---|---|
| Double-pane (CCS-L) | 34 | 1.40 | 0.45 |
| Triple-pane (CCS-L) | 42 | 0.90 | 0.37 |
Higher ER and lower U-Value indicate better energy performance. Values are derived from certified product testing and may vary by size, configuration, and glass package.
Features
Built for Ontario, backed for life
Multi-point locking
Secures the sash at several points for strong forced-entry resistance.
Airtight compression seal
Continuous weatherstripping all around the sash.
Triple-pane glass unit
Cardinal IG, argon-filled, dual Low-E, Super Spacer® warm-edge.
Full-pane sightline
No centre bar, more glass, more daylight.
Smooth crank operation
Easy to open and close, even one-handed.
Easy-clean access
The outward swing brings the exterior glass within reach from inside.
Built for Ontario
Frames and seals engineered to resist warping, cracking, and fading.
Where Casement Windows Work Best
A versatile style for nearly every room
Casements are one of the most versatile styles in an Ontario home. Their easy crank operation makes them a favourite over kitchen sinks and countertops, where reaching across to push a window open is impractical. The wide opening makes them excellent for bedrooms and living rooms that benefit from cross-ventilation, and their airtight seal suits any room where winter draft control matters most. They also pair beautifully with fixed or picture windows to create large, light-filled combinations.
Customization
Finished to match your home
Choose from a range of exterior frame colours, add internal or simulated divided-lite grilles in patterns from classic rectangular to prairie-style, and select specialty glass — tinted for light control or frosted for privacy — where you need it. Our team helps you land on a combination that complements your exterior and interior alike.
Rebates & Financing
Save more on your casement window upgrade
Home Renovation Savings™
New ENERGY STAR® certified casement windows may qualify for up to $100 per rough opening through the program's assessment stream. A home energy assessment is required before any work begins, and qualifying typically means upgrading at least three window rough openings. Amounts and eligibility are set by the program; we'll help you understand how it applies to your home. Full details at homerenovationsavings.ca.
0% Financing for 12 Months
Prefer to spread the cost? Trust Build offers 0% financing for 12 months through Financeit, so the right windows fit your family's budget.
FAQ
Frequently Asked Questions
Flexible Financing Options Available
0% promotional plans and low monthly payments through licensed Ontario lenders. Pre-qualify in minutes.
See financing plansLifetime Product Warranty
Frames, sashes, hardware and our workmanship — covered for as long as you own the home.
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Ready for casement windows built for Ontario?
Get a free, no-obligation quote from Trust Build — premium ENERGY STAR® windows, expert installation by our own crews, and flexible financing.
- Detailed project assessment
- Written itemized quotation
- Product and installation recommendations
- Financing options available
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