Fixed Windows
Jason White
Content Writer
August 12th, 2026
Fixed windows are non-operating windows designed primarily to provide natural light, views and architectural interest. Because they do not contain moving sashes or operating hardware, they can create a clean appearance with large areas of uninterrupted glass.
They are commonly used in living rooms, stairwells, entryways and other spaces where ventilation is either provided by nearby operable windows or is not a major requirement. Fixed windows can also be incorporated into larger window combinations alongside casement, awning or shaped units.
For Ottawa homeowners, fixed windows can be especially useful in larger openings where the goal is to maximize glass area while maintaining strong overall window performance. Their simple construction can also make them a practical choice for rooms where the window does not need to open.
Glazing selection remains important. Double pane and triple pane options can be considered depending on the size of the opening, exposure and desired level of winter comfort.
Northline’s fixed windows are custom-made to suit each measured opening and manufactured in Ontario. This allows homeowners to create window proportions and combinations that work with the architecture of the home rather than being limited to standard sizes.
Professional installation still matters even though the window does not operate. Accurate measurements, frame positioning, perimeter insulation and proper exterior sealing all contribute to how the finished unit performs over time.
Windows
Installation & Replacement
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Installation & Replacement
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Installation & Replacement
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Installation & Replacement
Fixed Window Basics
A fixed window is a non-operating window that remains permanently closed. Its purpose is generally to provide natural light, views and architectural balance rather than ventilation.
No Operating Sash
Fixed windows do not open or close, which means there are no hinges, tracks or crank mechanisms required for everyday operation.
Large Glass Area
The simple design can allow for broad areas of visible glass, making fixed windows useful where views and daylight are priorities.
Clean Frame Appearance
Without moving components, the frame can create a simple and uncluttered appearance.
Suitable for Larger Openings
Fixed windows can work well in larger wall openings where an operable sash may not be necessary.
Used Alone or in Combinations
They can be installed as standalone windows or paired with casement, awning, shaped or other operable units.
Custom Sizes and Proportions
Because Northline windows are made for each opening, fixed units can be designed around the dimensions and proportions of the home.
Natural Light
One of the main reasons homeowners choose fixed windows is the amount of glass they can bring into a room. Their non-operating design makes them especially effective where natural light is more important than ventilation.
Larger Uninterrupted Views
Fixed windows can provide a wide viewing area without meeting rails or moving sashes cutting through the centre of the glass.
Brighter Living Spaces
Large fixed units can bring more daylight into living rooms, dining rooms and other main areas of the home.
Stairwells and Hallways
Fixed windows can be useful in spaces where additional light is valuable but access to an operating sash would be impractical.
High Wall Placement
They can be positioned higher on walls to bring daylight deeper into the home while maintaining privacy.
Architectural Feature Windows
Large fixed windows can act as focal points in rooms with vaulted ceilings or distinctive rooflines.
Pairing With Operable Windows
Homeowners can use fixed glass for the primary view and nearby casement or awning windows for ventilation.
Window Combinations
Fixed windows are often used as part of larger custom window assemblies. Combining non-operating glass with operable units can create a better balance of views, daylight and ventilation.
Fixed Centre With Casement Sides
A large fixed centre window can be paired with casement windows on either side to provide ventilation while preserving a broad central view.
Fixed Glass Above Awning Windows
An awning window beneath a larger fixed unit can provide airflow without interrupting the main viewing area.
Multi-Unit Living Room Windows
Several fixed and operable windows can be arranged together to create wider wall-to-wall configurations.
Shaped Windows Above Fixed Units
Architectural shapes can be installed above rectangular fixed windows to follow rooflines or add visual detail.
Balanced Exterior Proportions
Different unit sizes can be planned so the overall window arrangement complements the scale of the facade.
Custom-Made Configurations
Northline’s Ontario-manufactured windows can be custom-sized to create combinations around the actual dimensions of the opening.
Energy Performance
Because fixed windows do not have an operating sash, they have fewer moving interfaces than operable window styles. Glazing, frame construction and installation still determine the overall performance of the unit.
Fewer Moving Components
A fixed window does not require hinges or sliding tracks, reducing the number of operational areas around the sash.
Double Pane Glass
Double pane glazing can provide a practical option for many fixed window installations.
Triple Pane Glass
Triple pane configurations may be worth considering for larger openings or rooms where winter comfort is a priority.
Large Glass Areas
The greater the glass area, the more important glazing selection can become for interior comfort during Ottawa winters.
Perimeter Air Sealing
Proper insulation and sealing around the frame are important for reducing uncontrolled air movement around the opening.
Window Orientation
North-facing, exposed or heavily glazed areas of the home may require different performance considerations than smaller protected openings.
Our Process
STEP 01
Tell Us About Your Project
Tell us what windows or doors you’re replacing and what you need from the project.
STEP 02
Measure & Recommend
We measure your openings and recommend the right window or door options for your home.
STEP 03
Install With Care
We complete the installation with careful fitting, insulation, sealing and finishing.
STEP 04
Final Walkthrough
We review the finished work, confirm proper operation and complete the warranty registration.
From single window replacements to full-home upgrades, Northline keeps the process straightforward from start to finish.
Payment Options
Window Rebates
Home Renovation Savings Program
Eligible window and door upgrades may qualify for rebates through Ontario’s Home Renovation Savings Program, helping homeowners reduce the cost of improving comfort and energy efficiency.
$100/Opening
