WINTER SPECIAL: Buy now, get one free ⛄️ Conditions apply. Get free quote

The Ultimate Guide to Casement Windows for Canadian Homes (2025): Everything You Need to Know

what is casement window

As a Sales Consultant at Total Home Windows and Doors, I’ve helped countless homeowners across the Greater Toronto Area make informed decisions about their window installations. Today, I’m sharing my comprehensive expertise about one of our most popular window styles: casement windows.

Casement windows represent the perfect blend of functionality and energy efficiency for Canadian homes. Their unique design makes them particularly suitable for our harsh climate. In my 15 years of experience, I've seen casement windows consistently exceed homeowner expectations.

Anna Klein, Chief Operating Officer

What is a Casement Window?

Casement window is a hinged windows that open outward like a door, operated by a crank mechanism. Unlike slider windows or double hung windows, they provide unobstructed views and maximum ventilation.

Historical Context and Evolution

  • Originally developed in medieval Europe
  • Evolved from simple hinged designs to modern crank operations
  • Gained popularity in North America during the 20th century
  • Modern innovations in materials and technology
FeatureBenefitTechnical Details
Crank OperationEasy to open and closeFold-away handle design
Multi-point LockingEnhanced security2-4 locking points
Compression SealSuperior weatherproofingDouble weather-stripping
Full OpeningMaximum ventilationUp to 90-degree opening
Outward SwingSpace-efficient designClear interior space
Insulated FrameEnergy efficiencyMulti-chamber design
Advanced GlazingTemperature controlDouble or triple pane

Mechanical Components

Crank Mechanism

Folding handle design
Stainless steel gears
Self-lubricating components

Hinge System

Heavy-duty support arms
Friction adjusters
Corrosion-resistant materials

Locking System

Multi-point engagement
Anti-theft features
Child safety options

The engineering behind modern casement windows is remarkable. Each component is designed for both durability and smooth operation. We're particularly proud of our multi-point locking system, which offers unprecedented security.

Vitaly Shapiro, Vice President of Sales

Comprehensive Types of Casement Windows

Single Casement Windows

One operable sash
Ideal for narrow spaces
Perfect for bathrooms and kitchens
Available in left or right-hand operation

Double Casement Windows

Two sashes opening from the centre
Excellent for wide openings
Popular in living rooms
Symmetrical design options

Combination Units

Mixed fixed and operable panels
Custom configurations
Architectural statements
Energy-efficient designs

French Casement Windows

Dual sash design
No center mullion
Wide-open views
Traditional aesthetic

Casement Windows Sizes

Width (cm)Height (cm)Common ApplicationEnergy RatingVentilation Area (m²)
41-6191-122BathroomsHigh0.37-0.74
61-76122-152BedroomsVery High0.74-1.15
76-91152-183Living RoomsUltimate1.15-1.67

Custom Sizing Considerations

Our company can create custom sizes to meet your specific requirements. Here are the key factors:

Maximum Dimensions

  • Width: 91 cm
  • Height: 183 cm
  • Glass weight capacity: 40 kg
  • Frame depth options: 8.9 cm – 15.2 cm

When it comes to casement window sizes, it's crucial to balance aesthetics with functionality. The right size ensures optimal performance and longevity. We always consider the building's structural requirements and local building codes when recommending sizes.

Eugene Siukayev, Project Manager

Are Casement Windows Energy Efficient? In-Depth Analysis

energy efficiency of casement windows

Casement windows are among the most energy efficient window options available. Let’s explore why:

Advanced Energy Efficiency Features

Compression Seal Technology

Multi-layer weather-stripping
Continuous frame seal
Corner gaskets
Thermal breaks

Multi-point Locking System

Even pressure distribution
Air infiltration prevention
Thermal bridge reduction
Security enhancement

Glazing Options

Double glazing (standard)
Triple glazing (premium)
Low-E coatings
Argon gas filling
Warm edge spacers

Performance Metrics and Ratings

Performance AspectRatingIndustry StandardOur Windows
U-FactorW/m²·K1.8-2.01.4-1.6
Solar Heat GainSHGC0.25-0.300.28-0.32
Air LeakageL/s/m²≤1.5≤0.5
Condensation ResistanceCR50-6060-70

Our casement windows consistently outperform other styles in energy efficiency tests. The compression seal creates an exceptionally tight barrier against the elements. We've seen heating cost reductions of up to 25% in homes that upgrade to our high-efficiency models.

Alexandr Naumov, Project Manager

Climate-Specific Features

Northern Climate Package

Triple glazing option
Enhanced weather stripping
Thermal frame inserts
Low-E coating options

Moisture Management

Integrated drainage system
Condensation channels
Thermal break technology
Pressure equalization

Performance Ratings by Climate Zone

Climate ZoneU-FactorSHGCVTAir Leakage
Zone 51.40.350.50A3
Zone 61.20.330.48A2
Zone 71.00.310.45A1

Understanding local climate conditions is crucial for window performance. We specifically engineer our casement windows to handle Ontario's diverse weather conditions.

Anna Klein, Chief Operating Officer

How Much Do Casement Windows Cost?

ComponentBasic ($)Premium ($)Ultra ($)
Window Unit400-600600-900900-1500
Installation200-300300-400400-600
Hardware50-100100-200200-300
Finishing50-100100-150150-250

Return on Investment Factors

Energy Savings

Average annual savings: $120-280
Payback period: 3-7 years
Energy rebate eligibility
Utility cost reduction

Property Value Impact

Average value increase: 3-5%
Market appeal enhancement
Energy rating benefits
Modern aesthetic value

Can a Casement Window be an Egress Window?

The topic of egress windows is crucial for safety and compliance. Let’s explore this in detail.

Ontario Building Code Requirements: A Detailed Breakdown

Requirement TypeMinimum SpecificationRecommended SizeNotes
Clear Opening Area0.35 m²0.40 m²Additional space for emergency equipment
Opening Width380 mm450 mmAllows passage with emergency gear
Opening Height380 mm450 mmAccommodates various body sizes
Sill HeightMax 1000 mm900 mmMeasured from floor

Additional Considerations

Window Well Requirements

Minimum 760 mm clearance
Drainage system
Non-slip surface
Protective cover options

Operation Requirements

One-hand operation
No special tools needed
Opening control devices
Emergency release mechanisms

Safety is our top priority when installing egress windows. We often recommend casement windows for basement bedrooms because they provide the largest clear opening relative to window size.

Daniel Klein, Project Manager

Advanced Installation Considerations

Installation TypeApplicationBenefitsConsiderations
New ConstructionNew buildsOptimal sizingRequires planning
RetrofitExisting homesPreserves exteriorMay need modification
InsertExisting framesQuick installationLimited sizing
Full FrameComplete replacementMaximum flexibilityMore extensive work

Advanced Maintenance and Care: Seasonal Maintenance Schedule

SeasonTaskFrequencyTools Needed
SpringHardware lubricationAnnualSilicone spray
SummerSeal inspectionBi-annualInspection mirror
FallWeather stripping checkAnnualReplacement strips
WinterTrack cleaningMonthlySoft brush

Are Casement Windows Secure?

Security Components

Multi-Point Locking System

Reinforced corner joints
Anti-lift devices
Security glazing beads
Tamper-resistant hardware

Glass Options

Laminated security glass
Tempered safety glass
Wire mesh reinforcement
Break-resistant filming

Security Ratings and Certifications

Security LevelFeaturesApplicationsCost Premium
BasicStandard locksResidentialIncluded
EnhancedMulti-pointUrban homes+15%
PremiumLaminated glassHigh security+30%
UltraSmart sensorsLuxury homes+45%

Conclusion: Making an Informed Decision

Casement windows represent a significant investment in your home’s comfort, security, and energy efficiency. Their versatility, combined with modern manufacturing techniques and installation expertise, makes them an excellent choice for Canadian homes.

Final Recommendations

  1. Consider your specific needs
  2. Evaluate all options thoroughly
  3. Choose qualified installers
  4. Plan for proper maintenance
  5. Keep documentation secure

Getting Started

  1. Request a free quote
  2. Schedule an in-home consultation
  3. Review custom proposals
  4. Select optimal solutions
  5. Plan installation timeline

Frequently Asked Questions

Can a casement window be installed horizontally?

No, casement windows are designed for vertical installation only. Horizontal installation would compromise the window’s operation, weatherproofing, and durability. Window manufacturers specifically design these windows for vertical mounting during replacement windows installation.

Most casement windows are designed to open outward only. While some European window manufacturers produce inward-opening models, the standard North American window style opens outward for better weatherproofing and operation.

No, installing a casement window sideways would prevent proper operation and void the warranty. Professional window installation must follow manufacturer specifications for optimal performance and longevity.

Typical casement windows open up to 90 degrees, allowing for maximum ventilation and easy cleaning. The exact opening angle may vary between window manufacturers and specific window styles.

With proper maintenance, casement windows typically last 20-30 years. Quality replacement windows from reputable window manufacturers can extend this lifespan, especially in well-maintained installations with quality hardware.

Casement windows stay open using their integrated crank mechanism and window operator. Regular maintenance of these components during window installation or replacement ensures smooth operation and reliable positioning.

Call Now Button