High Fix or Casement Fix Window 01
High Fix or Casement Fix Window 01
Weatherproof, draft-free, and serene. Expansive glass delivers stunning panoramic views without compromise.
Sealed in the upper frame to maximize daylight, they provide superior energy efficiency through an airtight design.

High Fix or Casement Fix Windows

Achieve architectural refinement by the effect a high profile fixed window can create. Since these windows are not operational, they are designed to accommodate larger openings, as dictated by the structural frame. The frame is designed to match the size and look of our casement and awning windows, giving your home a uniform look, especially evident when mixing operational and non-operational windows.

Classic contours of the frame are designed to match the size and appearance of our casement and awning windows for an attractive and consistent look and operational versatility for your home.

Non-operable
Matching Casement
Matching Awning
Sealed unit
Internal chambers
uPVC material
Fusion welded corners

High Fix Windows

High Fix windows deliver unobstructed upper-wall light, creating bright, airy interiors without compromising privacy. Fixed in the upper frame, they maximize daylight penetration while maintaining airtight seals for superior energy efficiency.

Casement Fix Windows

Casement Fix windows combine sleek aesthetics with uncompromising performance. Permanently sealed for weatherproofing, they eliminate drafts and noise infiltration while offering expansive glass areas for panoramic views.

Seamless
light flooding
Custom sizing
available
Effortless
upkeep required
Draft-free
seal tight
Noise blocked
completely
View-max
glass expanse

Installation Excellence

Precision-engineered frames ensure perfect alignment and long-term durability. Available in multiple finishes to complement any architectural style, from contemporary minimalism to classic elegance.

Performance Optimized

Advanced glazing technology provides thermal insulation, UV protection, and sound dampening. Maintenance-free design ensures lasting beauty and functionality for decades of reliable service.

High Fix or Casement Fix windows are available in both the Ultraslim and Classic series

Ultraslim Series
Ultraslim Series Profile

With a deeper 4-9/16″ frame and a slimmer 2-7/8″ visible profile, the UltraSlim Series with hidden gasket delivers a sleek, modern look while maximizing glass area. It is designed for seamless integration into new construction and larger openings.

Classic Series
Classic Series Profile

A proven 3-1/4″ frame depth with a standard profile, the Classic Series is ideal for retrofit and replacement projects. It delivers excellent thermal performance, a familiar aesthetic, and reliable compatibility with a wide variety of installation conditions.

Highly Customizable

Highly customizable to fit every need, our windows offer a broad selection of options including colors, jambs, casings, brickmoulds, glazing types, including privacy glass, and a variety of grill designs. Tailor your windows precisely to your style and functional preferences for a truly personalized finish.

Colour Options

Colour Options

At Window Force, we offer a carefully curated palette of durable, fade-resistant colours designed to match any architectural style, from classic to contemporary.

Explore Colour Options

Glass Options

Glass Options

We provide a wide range of advanced glass types tailored for modern window systems. From partially transparent decorative glass with artistic textures for enhanced privacy, to high-performance Low-E coatings that improve energy efficiency.

Explore Glass Options

Jambs, Casing, Brickmoulds Options

Jambs, Casing, Brickmoulds

Jambs, casings, and brickmoulds come in a variety of sizes to suit different needs, and they're available in a full color palette to complement your design vision. These components provide versatile options for functional and aesthetic window finishing.

Explore Options

Grills Options

Grills Options

If you want to enhance your windows with decorative pane patterns, we offer a flexible range of interior grill shapes to choose from — from the most common layouts to fully custom designs made to fit your style.

Explore Grills Options

Technical Specifications

Model LF_IS_CLRCARD-ARG90-CARD180#3_3MM LF_IS_CLRCARD-ARG90-CARD180#3_4MM LF_IS_CLRCARD-ARG90-CARD180#3-ARG90-CLRCARD_3MM LF_IS_CLRCARD-ARG90-CARD180#3-ARG90-CLRCARD_4MM
U-factor (W/m² – K) 1.55 1.54 1.23 1.24
Solar Heat Gain (SHGC) 0.52 0.51 0.48 0.47
Energy Rating 36 36 41 40
ENERGY STAR Zones, 2015 1 | 2 | 3 1 | 2 | 3 1 | 2 | 3 1 | 2 | 3
ENERGY STAR Zones, 2010 ABCD ABCD ABCD ABCD
Layers of Glazing 2 2 3 3
NRCan Reference NR9161-12601955-ES NR9161-12601959-ES NR9161-12601963-ES NR9161-12601967-ES
Energy Efficiency Verification Reference W535-1 W535-1 W535-1 W535-1
U-factor (Btu/h/ft² – °F) 0.27 0.27 0.22 0.22
Visible Transmittance 0.6 0.6 0.55 0.54
Air Leakage — Infiltration (l/s*m²) 0.01 0.01 0.01 0.01
Air Leakage — Exfiltration (l/s*m²) 0 0 0 0

Frequently Asked Questions

What is a high-fix or casement-fix window?

A high-fix (or casement-fix) window is a non-operable fixed window designed to look like a casement window. It provides natural light and unobstructed views without opening, making it ideal for areas where ventilation isn't required.

Why choose a fixed window instead of an operable one?

Fixed windows are chosen when:

  • Ventilation is unnecessary
  • Maximum energy efficiency is desired
  • Clear views and natural light are the priority

Because they don't open, fixed windows have fewer air-leak points, making them extremely airtight.

Are high-fix windows more energy efficient?

Yes. Fixed windows are typically more energy efficient than operable windows because:

  • There are no moving parts
  • No hinges or locking hardware
  • Fewer seals that can wear over time

This makes them ideal for improving overall home insulation.

Where are high-fix windows commonly installed?

They're often used in:

  • Stairwells
  • High walls or vaulted ceilings
  • Living rooms with large window groupings
  • Bathrooms or areas requiring privacy glass

They're also frequently combined with operable windows to create balanced designs.

More

Can fixed windows be combined with casement or awning windows?

Yes. A common design approach is pairing fixed windows with casement or awning windows to achieve:

  • Natural light from fixed panes
  • Ventilation from operable sections
  • A clean, symmetrical appearance

This is popular in modern and contemporary homes.

Are high-fix windows safe?

Yes. Fixed windows are very secure because they cannot be opened from the outside, making them ideal for higher elevations or security-sensitive areas.

Do fixed windows require maintenance?

Very little. With no moving parts, maintenance is limited to:

  • Occasional cleaning
  • Periodic inspection of seals

This makes them one of the most durable window options available.

Are high-fix windows suitable for egress?

No. Fixed windows do not meet egress requirements because they do not open. If egress is required (for example, in bedrooms or basements), an operable window must be installed instead.

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Tel: 416.213.0777
8810 Jane Street, Concord,
Vaughan, ON – L4K 2M9
Fax: 416.213.8854